AN8725FH

ICs for Optical Disk Drive AN8725FH Semiconductor laser power control IC s Overview The AN8725FH is a laser driver IC that can set a laser emitting level to a maximum precision in recording and playback of an optical recording equipment such as PD, and can modulate a laser light in tune with the external signal. 14.00±0.20 12.00±0.20 60 61 41 40 (1.25) 12.00±0.20 14.00±0.20 21 0.90±0.10 1.95±0.20 1 (1.25) 0.50 20 0.18 +0.10 –0.05 Unit: mm s Features • Digital setting of playback current, peak current, bias current and abnormal light emitting level • Peak current and bias current can be modulated by the external signal. • Driving current set-up (digital set-up) For playback: 8-bit + 4-bit (0 mA to 80 mA) 5-bit + 4-bit (0 mA to 150 mA) For peak: 4-bit + 8-bit (0 mA to 150 mA) For bias: 4-bit + 8-bit (0 mA to 150 mA) • Laser output light monitoring circuit built-in • Abnormal light emitting detecting function built-in: Possible to set up excessive and insufficient light emitting levels with 4-bit DAC for playback and recording, respectively. • Supply voltage abnormality detection: Voltage down (3.9 V or less), voltage up (6.1 V or more) 80 (1.00) 0.15 –0.05 +0.10 Seating plane 0.90±0.10 0.10±0.10 0° to 10° 0.50±0.20 QFP080-P-1212 s Applications • Optical disk drive 1 AN8725FH s Block Diagram PKGND ICs for Optical Disk Drive PKDCP BIGND RDCP2 64 DAC8 PKVCC 45 58 72 71 77 76 62 68 78 73 IGND 40 4 35 AGND 5 54 4 5 6 8 9 4 AD0 AD1 AD2 AD3 DT0 16 DT1 17 DT2 18 DT3 22 DT4 23 DT5 24 DT6 25 DT7 26 XLDEN 27 XCLR 29 XLDERR 32 XHFON PWMSK 30 ERFIL 31 55 4 Excessive light emission DAC6 4 PS over PS down Playback current DAC7 LPF9 LPF off DAC3 DAC2 SW1 44 43 65 39 LPF92 LPF91 LDRP LPF12 LPF11 Playback current DAC9 4 Playback current DAC1 8 PKMD BIMD RPHOLD XWR XRD Playback current DAC8 LPF1 LPF off SW1 8 63 DAC7 RDCP1 38 70 XLDPK 69 LDPK 75 XLDBI 74 LDBI Buffer AVCC Peak current DAC2 BIDCP SW2 SW3 RGND BIVCC RVCC Current amplification 11 12 13 14 15 Control logic 8 Peak bias current DAC4 Bias current DAC3 Shunt circuit SW5 Current amplification X1/SX2 changeover AAF off AAF RST CTL SW6 DAC1 DAC9 DAC4 I/V conversion Current amplification X1, X10 Current source for DAC Supply voltage monitoring AAF SW6 WPW over WPW down RPW over RPW down Sleep Sleep circuit Abnormal light emitting detection Reference voltage source (1.25 V) 1 20 21 41 42 59 60 61 79 80 Insufficient light emission DAC5 51 IPD 50 IVIN 49 IVOUT 48 AAF 47 PWRMONI 46 DETMONI 56 VNR 36 VC 53 CVCC 52 CGND 34 DVCC 9 33 28 19 10 3 2 DGND DAC56SW 57 DACMONI 37 RREF ERREF 2 SGND ICs for Optical Disk Drive s Pin Descriptions Note) Description on notations of "Category" in the following list: IN : Input pin I/O : Input/output pin (pull-down with 100 k Ω) IND : Input pin (pull-down with 100 kΩ) PS : Power supply/GND pin INU : Input pin (pull-up with 100 kΩ) MSC : Parts connecting pin, etc. OUT: Output pin A: Analog function D: Digital function AN8725FH Pin No. 1 Symbol SGND Category PS D Description Pin connected to the chip substrate. Must be used in the same potential as other GND pins. 2 3 4 DGND DGND PKMD PS PS IND D D D GND pin exclusive for a logic circuit. Must be used in the same potential as other GND pins. Peak current modulation signal input pin. In high-level, the current set up with DAC2 is superimposed on LD. 5 BIMD IND D Bias current modulation signal input pin. In high-level, the current set up with DAC3 is superimposed on LD. 6 RPHOLD IND D Record gate signal input pin. Inputs a low-level in playback and a high-level in recording. Switches an amp. of light monitoring signal, abnormally emitted light detection level and on/off of HF module. 7 XWR INU D Register writing signal pin. Selects a register specified by address in a fall edge and writes a bus data on the register of the address specified in the rise edge. 8 XRD INU D Register read-out signal pin. Register data of the address specified in low appears on the bus. 9 DVCC PS D Power supply pin exclusive for a logic circuit. Must be used in the same potential as other power supply pins. 10 DGND PS D GND pin exclusive for a logic circuit. Must be used in the same potential as other GND pins. 11 12 13 14 15 16 17 18 19 AD0 AD1 AD2 AD3 DT0 DT1 DT2 DT3 DGND IND IND IND IND I/O I/O I/O I/O PS D D D D D D D D D 4-bit address pin for registers. Selects the register to be accessed. Data I/O 8-bit bus pin. The bus to set the data to be written on a register and to read out the data of a register. GND pin exclusive for a logic circuit. Must be used in the same potential as other GND pins. 3 AN8725FH s Pin Descriptions (continued) Pin No. 20 21 22 23 24 25 26 Symbol SGND SGND DT 4 DT 5 DT 6 DT 7 XLDEN Category PS PS I/O I/O I/O I/O INU D D D D D D D LD enable input pin. ICs for Optical Disk Drive Description Pin connected to the chip substrate. Must be used in the same potential as other GND pins. Data I/O 8-bit bus pin. The bus to set the data to be written on a register and to read out the data of a register. In a high-level or open mode, LD becomes off and open. This state is suited to check the LD characteristics in keeping a connection to the IC. At the time power off, both ends of LD are short-circuited by the IC for protection. In the low-level, it returns to a normal operation. 27 XCLR IND D Clear signal input pin. Sets an LDDENB register to "0" in the low-level and presets the status of each DAC and each switch to an initial state as defined separately. But six registers for an abnormal detection are not cleared. In this state, each output of a current amplification 1, 2, 3 are in the off state and a shunt circuit becomes on to continue to protect LD. Setting this pin to the high-level and the LDDENB register to "1", it returns to a normal operation. 28 DGND PS D GND pin exclusive for a logic circuit. Must be used in the same potential as other GND pins. 29 XLDERR OUT D Laser abnormality detection output pin. When a supply voltage or a laser light emission exceeds a fixed range, it goes to low-level. A supply voltage abnormality is detected for the voltage drop (3.9 V or less) or voltage rise (6.1 V or more). And an abnormal light emission is detected for an excessive or weaker light emission set up by 4-bit DAC5 and DAC6. This abnormality detection is latched so as to prevent it from being reset until ERRCLR register is set to "1". Further, each DAC output of a playback current, a peak current and a bias current can be set to off, a shunt circuit be set to on and LD between anode and GND be short-circuited by 100 Ω so that LD can be protected. This protection function is latched to keep it from being reset until ERRCLR is set to "1". Selection of either operation or non-operation for this operation can be made by an STPMSK register. 30 PWMSK MSC D The pin to set up the mask time for a transitional response output that comes out at switching a detection level of excessive or insufficient light emission by RPHOLD. Set a mask time by an external capacitor between PWMSK and DGND and the resistor (10 kΩ) inside the IC. This pin is for a schmitt-trigger input. 4 ICs for Optical Disk Drive s Pin Descriptions (continued) Pin No. 31 Symbol ERFIL Category MSC D by noise. Description AN8725FH Filter setting pin to avoid a detection error of laser abnormality caused Connect an external capacitor between ERFIL and DGND, and set a filter together with a resistor (10 kΩ) inside the IC. This pin is for schmitt-trigger input. 32 XHFON OUT D HF module on/off control signal output pin. High corresponds to off and low to on. 33 DGND PS D GND pin exclusive to a logic circuit. Must be used in the same potential as other GND pins. 34 DVCC PS D Power supply pin exclusive to a logic circuit. Must be used in the same potential as other power supply pins. 35 AGND PS A GND pin exclusive to a analog circuit. Must be used in the same potential as other GND pins. 36 VC MSC A Output pin for reference voltage (1.25 V). Connects a capacitor C between this pin and AGND for de-coupling. 37 RREF MSC A Reference resistor connecting pin to determine an output current for each DAC. Connect a resistor of 10 kΩ between RREF and AGND. 38 39 LPF11 LPF12 MSC MSC A A LPF characteristic setting pin for DAC1 and DAC8. Connect an external resistor between LPF11 and LPF12, and then capacitor between LPF12 and IGND to set up a cutoff frequency. 40 IGND PS A GND pin for playback power supply setting DAC1, DAC9 and disturbance reduction LPF. Must be used in the same potential as other GND pins. 41 42 43 44 SGND SGND LPF91 LPF92 PS PS MSC MSC D D A A Pin connected to the chip substrate. Must be used in the same potential as other GND pins. LPF characteristic setting pin for DAC9 and DAC7. Connect an external resistor between LPF91 and LPF92 and then capacitor between LPF92 and IGND to set a cutoff frequency. 45 AVCC PS A Power supply pin for an analog circuit, a reference supply voltage circuit, etc. Must be used in the same potential as other power supply pins. 46 DETMONI OUT A Pin to monitor a signal for detecting abnormally emitted light. In a playback mode, the signal output is five times that in recording (ten times is posisible by a register setting). Has offset to VNR due to being outputted through a buffer of transistors. 47 PWRMONI OUT A Laser emitting light monitor signal. In a low-level of RPHOLD, the amplifier output has 10 times gain compared with recording, and is equipped with AFF. 5 AN8725FH s Pin Descriptions (continued) Pin No. 48 Symbol AAF Category MSC A ICs for Optical Disk Drive Description AAF characteristic setting pin for optical monitor circuit. Connect an external resistor, capacitor between AAF and IVOUT and set up a cutoff frequency. 49 IVOUT OUT A I to V conversion signal output pin. Connect an external variable resistor between IVIN and IVOUT. 50 IVIN MSC A I to V conversion resistor connection pin. Connect an external variable resistor between IVIN and IVOUT. 51 IPD MSC A Pin photo diode (PD) connection pin. Connect a pin photo diode for detecting a semiconductor laser emitting light. Connect anode to this pin. Applicable to a source-type PD which has a typical value of 40 µA to 160 µA output in object lens output power of 1 mW. 52 CGND PS A GND pin in an optical monitor circuit. Must be used in the same potential as other GND pins. 53 CVCC PS A Power supply pin in an optical monitor circuit. Must be used in the same potential as other power supply pins. 54 AGND PS A GND pin exclusive to a analog circuit. Must be used in the same potential as other GND pins. 55 ERREF IN A Abnormally emitting light detecting range setting pin. Sets a full scale voltage of DAC5 and DAC6. A setting range is VNR or more and input range of an external ADC or less. 56 VNR IN A Reference level input pin for PWRMONI output. Input a reference voltage of 1.25 V of an external ADC. 57 DACMONI OUT A DAC5, DAC6 monitor pin. DAC5 voltage is outputted when DAC56 SW register is low, DAC6 voltage is outputted when DAC6 voltage is high. 58 AVCC SGND SGND SGND RGND PS A Power supply pin for an analog circuit, a reference supply voltage circuit, etc. Must be used in the same potential as other power supply pins. 59 60 61 62 PS PS PS PS D D D A Pin connected to the chip substrate. Must be used in the same potential as other GND pins. GND pin for the lead current setting DAC7 and DAC8. Must be used in the same potential as other GND pins. 63 RDCP1 MSC A Pin to connect a de-coupling capacitor to protect the output current of DAC7, the read current setting circuit, from disturbance by a switching noise such as peak current. (Connects a capacitor between RDCP1 and RGND.) 6 ICs for Optical Disk Drive s Pin Descriptions (continued) Pin No. 64 Symbol RDCP2 Category MSC A Description AN8725FH Pin to connect a de-coupling capacitor to protect the output current of DAC7, the read current setting circuit, from disturbance by a switching noise such as peak current. (Connects a capacitor between RDCP2 and RGND.) 65 LDRP OUT A Source type read current (DAC1, DAC7, DAC8, DAC9) output pin. Possible to set up the range of 0 mA to 150 mA in the precision of 8-bit + 4-bit + 5-bit + 4-bit. Output voltage range is 1.0 V to 3.5 V. 66 67 68 N.C. N.C. RVCC   PS   A N.C. pin. Open the pin or connect to GND. Power supply pin for read current setting DAC7, DAC8. Consumes approximately a quarter of the necessary read current. Must be used in the same potential as other power supply pins. 69 LDPK OUT A Source-type peak current (DAC2) output pin. Possible to set the range of 0 mA to 150 mA in the accuracy of 8-bit. The output voltage range is 1.0 V to 3.2 V. 70 XLDPK IN A Sink-type peak current output pin. Approximately three fourths of LDRK output current are outputted from this pin. 71 PKGND PS A GND pin of DAC2 in the peak current setting circuit. Must be used in the same potential as other GND pins. 72 PKVCC PS A DAC2 power supply pin in the peak current setting circuit. Consumes approximately a quarter of the setting current. Must be used in the same potential as other power supply pins. 73 PKDCP MSC A Pin to connect a de-coupling capacitor to avoid the output current disturbance, which is caused by a switching noise such as peak current, in peak current setting circuit DAC2. (Connects a capacitor between PKDCP and PKGND.) 74 LDBI OUT A Source-type bias current (DAC3) output pin. Possible to set the range of 0 mA to 150 mA in the accuracy of 8-bit. Output voltage range is 1.0 V to 3.2 V. 75 XLDBI IN A Sink-type peak current output pin. Approximately three fourths of LDBI output current are outputted from this pin. 76 BIGND PS A GND pin of a bias current setting circuit DAC3. Must be used in the same potential as other GND pins. 77 BIVCC PS A Power supply pin of a bias current setting circuit DAC3. Consumes approximately one fourth of a setting current. Must be used in the same potential as other power supply pins. 7 AN8725FH s Pin Descriptions (continued) Pin No. 78 Symbol BIDCP Category MSC A ICs for Optical Disk Drive Description Pin to connect a de-coupling capacitor to avoid the output current disturbance, which is caused by a switching noise such as bias current, of a bias current setting circuit DAC3. (Connects a capacitor between BIDCP and BIGND.) 79 80 SGND SGND PS PS D D Pin connected to the chip substrate. Must be used in the same potential as other GND pins. s Absolute Maximum Ratings Parameter Supply voltage Input voltage Outoput voltage Parts connecting pin voltage Supply current Pin current Power dissipation *2 *1 Symbol VCC VIN VOUT VMSC ICC IPIN PD Topr Tstg Rating 7.0 − 0.4 to VCC +0.4 − 0.4 to VCC +0.4 − 0.4 to VCC +0.4 80 −100 to +100 600 −20 to +75 −55 to +150 Unit V V V V mA mA mW °C °C Operating ambient temperature Storage temperature *1 Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2: The power dissipation shown is for the IC package in single unit at Ta = 75°C. Refer to "s Application Notes, 1. PD  Ta curves of QFP080-P-1212". s Recommended Operating Range Parameter Supply voltage Symbol VCC Range 4.50 to 5.50 Unit V s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C Parameter Supply current Supply current Sleep mode supply current Reference voltage block Reference voltage output Reference voltage variation VREF ∆VREF VCC = 4.5 V to 5.5 V, IREF = 0 mA VCC = 4.5 V to 5.5 V IREF = −1 mA to + 1 mA Maximum output current ∆VOM IREF = −1.5 mA, difference from IREF = 0 mA 1.20    1.25    1.30 ± 15 ± 20 ± 50 mV V mV ICC ISLP XCLR = low, digital I/O pin = open, IPD = 0 µA Sleep = 1, IPD = 0 µA   20 3 30 4 mA mA Symbol Conditions Min Typ Max Unit 8 ICs for Optical Disk Drive s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter Digital block High-level input voltage Low-level input voltage High-level input voltage (Schmitt-trigger input) Low-level input voltage (Schmitt-trigger input) High-level output voltage Low-level output voltage VIH VIL To be applied to a digital input pin To be applied to a digital input pin 0.8 × VCC  0.8 × VCC  0.8 × VCC   75          100   Symbol Conditions Min Typ AN8725FH Max  0.2 × VCC  0.2 × VCC  0.2 × VCC 0.4 125 80 10 Unit V V V V V V VIHSHC To be applied to PWMSK, ERFIL pin VILSHC To be applied to PWMSK, ERFIL pin VOH VOL1 VOL2 IOH = −2 mA IOL = +2 mA IOL = +0.5 mA Pull-up: VIL = 0 V Pull-down: VIH = 5.0 V To be applied to a digital input pin, VOH = 5.25 V To be applied to a digital input pin, VOL = 0 V Input pull-up, pull-down resistance Input leak RPD ILKH ILKL kΩ µA Entire optical monitor Offset voltage at playback VPMOFR VR1 = 1 kΩ, IPD = 0 mA VR1 = 1 kΩ, difference from an ideal value at IPD = 100 µA to 200 µA Offset voltage at recording VPMOFW VR1 = 1 kΩ, IPD = 0 mA VR1 = 1 kΩ, difference from an ideal value at IPD = 100 µA to 2 000 µA Gain ratio Maximum output voltage Minimum output voltage f characteristics at playback f characteristics at recording Settling time at playback Settling time at recording GR VPM max VPM min fPMR AAF AAF-off VR1 = 1 kΩ, −3 dB, IPD = 100 µA to 200 µA OFF fPMW VR1 = 1 kΩ, −3 dB, IPD = 100 µA to 2 000 µA GPMR /GPMW , output = VNR +0.6 V to 2.0 V −15 −40 −15 −20 9.0  0  0 10.0 15 40 15 20 11.0  VNR− 0.015   400 400 times V V MHz MHz ns ns mV mV VCC × VCC × 0.73 0.78  4 6    6 7.5 200 200 tPMSETR VR1 = 1 kΩ, error ±0.5%, output variation: Range of 0 V to 2 V tPMSETW VR1 = 1 kΩ, error ±0.5%, output variation: Range of 0 V to 2 V 9 AN8725FH s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter Symbol Conditions ICs for Optical Disk Drive Min Typ Max Unit Current amplification changeover Gain at playback Gain at recording Gain ratio I to V conversion block Offset voltage DAC1 block Resolution Integral linearity error Differential linearity error Maximum output current Offset current RES1 EL1 ED1 I1max I1OF1 DAC1 = "FFh", DAC8 [Fh], DAC7 [0h], DAC9 [00h] "00h" LPF-on, DAC8 [Fh], DAC7 [0h], DAC9 [00h], DAC7, DAC8 characteristics included "00h" LPF-off, DAC8 [Fh], DAC7 [0h], DAC9 [00h]  −1.0 −1.0 70 −1 8   80   10.0 1.5 90 1 bit LSB LSB mA mA VIVOF VR1 = 0 Ω, IPD = 0 mA −15  15 mV GIPDR GIPDW GRIPD Reg7 = "80h", IPD = 40 µA to 240 µA Reg7 = "C0h", IPD = 200 µA to 3 200 µA GIPDR /GIPDW 9.0 0.9 9.0 10.0 1.0 10.0 11.0 1.1 11.0 times times times I1OF2 LPF on/off gain ratio Settling time −250 0.95   1 400 250 1.05 800 µA times ns GRDAL GLPFON /GLPFOFF , input amplitude 0 V to 2 V tSDA1 XWR ↑ to DAC1 [10h to 8Fh], ±2 LSB range, DAC7 [0h], DAC8 [Fh], DAC9 [00h] LPF-off, LPF11 pin open, RDCP2 pin open DAC7 block Resolution Integral linearity error Differential linearity error Maximum output current Minimum output current Settling time RES7 EL7 ED7 I7max I7min tSDA7 Set to DAC7 = "Fh", DAC9 [1Fh], DAC1 [00h], DAC8 [0h]  −1.0 − 0.5 133 4   150 0 50  1.0 0.5 170 0.1 500 bit LSB LSB mA mA ns Set to DAC7 = "0h", − 0.1 DAC9 [1Fh], DAC1 [00h], DAC8 [0h] XWR ↑ to DAC7 [0h to Fh], DAC9 [1Fh], ±0.5 LSB, DAC1 [00h], DAC8 [0h]  DAC8 block Resolution Integral linearity error Differential linearity error RES8 EL8 ED8  −1.0 − 0.5 4    1.0 0.5 bit LSB LSB 10 ICs for Optical Disk Drive s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter DAC8 block (continued) Maximum output current Minimum output current Settling time I8max I8min tSDA8 Set to DAC8 = "Fh", DAC1 [FFh], DAC9 [1Fh], DAC7 [0h] Set to DAC8 = "0h", DAC1 [FFh], DAC9 [1Fh], DAC7 [0h] XWR ↑ to DAC8 [0h to Fh], DAC1 [80h], ±0.5 LSB, DAC9 [00h], DAC7 [0h] 70 4  80 5 50 Symbol Conditions Min Typ AN8725FH Max Unit 90 6 250 mA mA ns DAC2 block Resolution Integral linearity error Differential linearity error Maximum output current Offset current Settling time DAC3 block Resolution Integral linearity error Differential linearity error Maximum output current Offset current Settling time DAC4 block Resolution Integral linearity error Differential linearity error Maximum output current Offset current Settling time DAC9 block Resolution Integral linearity error Differential linearity error Maximum output current RES9 EL9 ED9 I9max DAC9 = "1Fh", DAC7 [Fh], DAC1 [00h], DAC8 [0h]  −1.0 −1.0 133 5   150  1.0 1.0 170 bit LSB LSB mA RES4 EL4 ED4 I4max I4OF tSDA4 DAC2 = "FFh", DAC4 [Fh] DAC2 = "00h", DAC4 [Fh] XWR ↑ to DAC4 [0h to Fh], ±0.5 LSB, DAC2 [FFh]  −1.0 −1.0 133 − 0.1  4   150  300  1.0 1.0 170 0.1 600 bit LSB LSB mA mA ns RES3 EL3 ED3 I3max I3OF tSDA3 DAC3 = "FFh", DAC4 [Fh] DAC3 = "00h", DAC4 [Fh] XWR ↑ to DAC3 [10h to FFh], ±2.0 LSB, DAC4 [Fh]  −1.0 −1.0 133 − 0.1  8   150  200  5.0 1.0 170 0.1 450 bit LSB LSB mA mA ns RES2 EL2 ED2 I2max I2OF tSDA2 DAC2 = "FFh", DAC4 [Fh] DAC2 = "00h", DAC4 [Fh] XWR ↑ to DAC2 [10h to FFh], ±2.0 LSB, DAC4 [Fh]  −1.0 −1.0 133 − 0.1  8   150  100  5.0 1.0 170 0.1 250 bit LSB LSB mA mA ns 11 AN8725FH s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter DAC9 block (continued) Offset current I9OF1 Symbol Conditions ICs for Optical Disk Drive Min −2.0 Typ  Max Unit "00h" LPF-on, DAC7 [Fh], DAC8 [0h], DAC1 [00h], DAC7, DAC8 characteristics included 2.0 mA I9OF2 "00h" LPF-off, DAC7 [Fh], − 0.85 DAC8 [0h], DAC9 [00h], DAC7, DAC8 characteristics included GLPFON /GLPFOFF , input amplitude 0 V to 2 V XWR ↑ to DAC9 [00h to 1Fh] ±2 LSB range, DAC7[Fh], DAC8 [0h], LPF9-off, LPF91 pin open, RDCP1 pin open 0.95   0.85 LPF on/off gain ratio Settling time GRDA9 tSDA9 1 400 1.05 800 times ns Supply voltage monitoring block Abnormality release supply voltage Abnormality supply voltage VPSDL VPSOL VPSDH VPSOH Sweep VCC from low to high Sweep VCC from high to low Sweep VCC from high to low Sweep VCC from low to high 3.9 5.5 3.6 5.8  − 0.5 − 0.5 DAC5 = set to "Fh" and difference to ERREF pin DAC5 = set to "0h" and difference to VNR pin, at ERREF − VNR = 2.0 V XWR ↑ to DAC5 [0h to Fh], ±0.5 LSB −20 105  4.2 5.8 3.9 6.1 4.5 6.1 4.2 6.4  0.5 0.5 20 145 1.5 µs V V Abnormally emitted light detection DAC5 Resolution Integral linearity error Differential linearity error Offset voltage RES5 EL5 ED5 V5OF1 V5OF2 Settling time tSDA5 4    125 0.5 bit LSB LSB mV Abnormally emitted light detection DAC6 Resolution Integral linearity error Differential linearity error Offset voltage RES6 EL6 ED6 V6OF1 V6OF2 Settling time tSDA6 DAC6 = set to "Fh" and difference to ERREF pin DAC6 = set to "0h" and difference to VNR pin, at ERREF − VNR = 2.0 V XWR ↑ to DAC6 [0h to Fh] ±0.5 LSB  − 0.5 − 0.5 −20 105  4    125 0.5  0.5 0.5 20 145 1.5 µs bit LSB LSB mV 12 ICs for Optical Disk Drive s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter Symbol Conditions Min −40 −50 9.0 4.5 0.9 9.0 4.5 VR1 = 1 kΩ, −3 dB, IPD = 100 µA to 200 µA VR1 = 1 kΩ, −3 dB, IPD = 100 µA to 2 000 µA XWR ↑ to XLDERR ↓ XWR ↑ to XLDERR ↑ XWR ↑ to sleep mode XWR ↑ to normal mode RPHOLD ↑ to DAC5 W, at having reached ±0.5 LSB RPHOLD ↓ to DAC5 R, at having reached ±0.5 LSB RPHOLD ↑ to DAC6 W, at having reached ±0.5 LSB RPHOLD ↓ to DAC6 R, at having reached ±0.5 LSB RPHOLD ↑ to XHFON ↑ RPHOLD ↓ to XHFON ↓ 2.5 5.0 Typ   10.0 5.0 1.0 10.0 5.0   AN8725FH Max Unit Abnormally emitted light detection optical monitor block Offset voltage VEROFR In playback, DETMONI pin, IPD = 0 µA VEROFW In recording, DETMONI pin, IPD = 0 µA Gain GERR1 GERR2 GERW Gain ratio GERR1 GERW GERR2 GERW f characteristics at playback f characteristics at recording Control operation response Data write to XLDERR ↓ Data write to XLDERR ↑ Data write to sleep mode Data write to normal mode RPHOLD ↑ to DAC5 R → W RPHOLD ↓ to DAC5 W → R RPHOLD ↑ to DAC6 R → W RPHOLD ↓ to DAC6 W → R RPHOLD ↑ to HF module signal RPHOLD ↓ to HF module signal t203 t204 t205 t206 t39 t40 t41 t42 t43 t44           20 25 4 3 0.40 0.40 0.40 0.40 18 17 60 60 9 8 2.5 2.5 2.5 2.5 30 30 ns ns µs µs µs µs µs µs ns ns fERR fERW In playback, addr. "9": D4 = "0", IPD = 100 µA to 200 µA In playback, addr. "9": D4 = "1", IPD = 100 µA to 200 µA In recording, DETMONI pin, IPD = 100 µA to 2 000 µA 60 50 11.0 5.5 1.1 11.0 5.5   MHz MHz times times mV 13 AN8725FH s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter Recording Modulation Peak modulation signal response *1 t113 t114 t115 t116 t117 Bias modulation signal response *1 ICs for Optical Disk Drive Symbol Conditions PKMD ↑ to LDPK ↑ 50% delay PKMD ↓ to LDPK ↓ 50% delay LDPK ↑ 50% to LDPK ↓ 50% LDPK ↑ 10% to LDPK ↑ 90% LDPK ↓ 90% to LDPK ↓ 10% BIMD ↑ to LDBI ↑ 50% delay BIMD ↓ to LDBI ↓ 50% delay LDBI ↑ 50% to LDBI ↓ 50% LDBI ↑ 10% to LDBI ↑ 90% LDBI ↓ 90% to LDBI ↓ 10% Min         Typ Max Unit 18 17 30 30 ns t112 −3 t112 −1 t112 +1 6 4 18 17 9 6 30 30 ns t123 t124 t125 t126 t127 t122 −3 t122 −1 t122 +1 6 5 9 8 Note) *1: Resistive load (at 15 Ω) Conditions of t113 to t117 Measure at approximately 1.75 V of LDPK pin voltage. DAC1 [FFh], DAC8 [7h] DAC9 [1Fh], DAC7 [7h], DAC4 [Fh] DAC2 [00h to 80f] Conditions of t123 to t127 Measure at approximately 1.75 V of LDPK pin voltage. DAC1 [FFh], DAC8 [7h] DAC9 [1Fh], DAC7 [7h], DAC4 [Fh] DAC3 [00h to 80f] • Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Reference voltage block Reference voltage temperature characteristics *2 Digital block Low → high input hysteresis (Schmidt trigger input) High → low input hysteresis (Schmidt trigger input) Entire optical monitor Offset voltage temperature variation Symbol Conditions Min  Typ  Max ±30 Unit ∆VTEM VREF = 0 V, Ta = −20°C to +75°C mV VLHHYS To be applied to PWMSK, ERFIL pin VHLHYS To be applied to PWMSK, ERFIL pin   1.0 1.0   V V ∆VPMOFR In playback, VR1 = 1 kΩ ∆T IPD = 10 µA to 200 µA Ta = −20°C to +75°C ∆VPMOFW In recording, VR1 = 1 kΩ ∆T IPD = 100 µA to 2 000 µA Ta = −20°C to +75°C  55 200 µV °C  30 150 Note) *2: Difference between VREF min. and VREF max. within the range of Ta = −20°C to +75°C. 14 ICs for Optical Disk Drive s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. AN8725FH Parameter Symbol Conditions Ta = −20°C to +75°C In playback, AAF-off rise In recording, rise × 10 → × 1, at having reached ±0.5% × 1 → × 10, at having reached ±0.5% In playback, −3 dB, VR1 = 1 kΩ, AAF filter on, IPD 100 µA to 200 µA Min −3 13 35    Typ  18 45 100 200 40.8 Max Unit Entire optical monitor (continued) Gain ratio variation to temperature Slew rate d GPMR GPMW 3   300 500  kHz ns % V/µs S1PMR S1PMW Signal changeover response tPMSW1 tPMSW2 fPMROF f characteristics Current amplification block Gain variation to temperature dGIPDR In playback, IPD = 60 µA to 240 µA, Ta = −20°C to +75°C dGIPDW In recording, IPD = 0.2 mA to 3.2 mA, Ta = −20°C to +75°C −3 −3 −3    3 3 3 % Gain ratio variation to temperature Signal changeover response d GIPDR In playback, IPD = 60 µA to 240 µA, GPMW In recording, IPD = 0.2 mA to 3.2 mA, Ta = −20°C to +75°C % tIPDSW1 × 10 → × 1, at having reached ±0.5% tIPDSW2 × 1 → × 10, at having reached ±0.5%   100 200 300 500 ns I to V conversion Offset voltage variation to temperature Slew rate Open loop gain Zero-cross frequency Settling time AAF analog SW On resistance at playback On resistance at recording DAC1 f characteristics fDAC1 Sine wave signal equivalent to 40 mA[p-p] of current amplitude at LPF12 pin, DAC7 [0h], DAC8 [Fh], DAC9 [00h], RDCP2 pin = 1 000 pF  1  MHz RAFR RAFW 0 Ω between IVOUT and IVIN   175 200 250 300 Ω Ω dVIVOF VR1 = 0 Ω, IPD = 0 µA, dT Ta = −20°C to +75°C SlIV GIV f0IV tIVSET Output amplitude at 1 V[p-p] Error ±0.5%, output variation: within the range of 0 V to 2 V  20    10 34 50 8 100 50    200 µV °C V/µs dB MHz ns 15 AN8725FH s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) ICs for Optical Disk Drive Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter DAC1 (continued) Driving current temperature characteristics Offset current variation to temperature Symbol Conditions Min  Typ Max Unit ErrDA1 Including DAC8 when setting at "FFh", DAC7 [0h], DAC8 [Fh], Ta = 0°C to +75°C "00h", LPF-on, including DAC7, DAC8, DAC7 [0h], DAC8 [Fh], Ta = −25°C to +75°C "00h", LPF-off, including DAC7, DAC8, DAC7 [0h], DAC8 [Fh], Ta = −25°C to +75°C 7 10 % dI1ON dT dI1OF dT  2 10 µA °C  0.5 10 DAC9 f characteristics fDAC9 Sine wave signal equivalent to 40 mA[p-p] of current amplitude at LPF22 pin, DAC7 [Fh], DAC8 [0h], DAC1 [00h], RDCP1 pin = 1 000 pF Including DAC8 at setting at "1Fh", DAC7 [Fh], DAC8 [0h], Ta = 0°C ∼ +75°C "00h", LPF-on, including DAC7, DAC8, DAC7 [Fh], DAC8 [0h], Ta = −25°C ∼ +75°C "00h", LPF-off, including DAC7, DAC8, DAC7 [Fh], DAC8 [0h], Ta = −25°C to +75°C DAC7 [Fh], DAC8 [0h], DAC9 [1Fh], DAC1 [00h], Ta = −20°C to +75°C  1  MHz Driving current temperature characteristics Offset current variation to temperature ErrDA9  7 10 % dI9ON dT dI9OF dT  2 10 µA °C  0.5 10 DAC7 Driving current temperature characteristics Offset current temperature characteristics DAC8 Driving current temperature characteristics Offset current temperature characteristics ErrDA8 DAC8 [Fh], DAC7 [0h], DAC1 [FFh], DAC9 [00h], Ta = −20°C to +75°C 0 8 15 % ErrDA7 0 8 15 % dIDA7OF DAC7 [0h], DAC8 [0h], dT DAC9 [1Fh], DAC1 [00h], Ta = −20°C to +75°C  0.2 10 µA °C dIDA8OF DAC8 [0h], DAC7 [0h], dT DAC1 [FFh], DAC9 [00h], Ta = −20°C to +75°C  0.2 10 µA °C 16 ICs for Optical Disk Drive s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. AN8725FH Parameter DAC2 Offset current temperature characteristics Driving current temperature characteristics Settling time Symbol Conditions Min  Typ  6 40 Max Unit µA °C % ns dIDA2OF dT ErrDA2 tSDA2A DAC3 = "FFh", set to DAC4 = "Fh", Ta = −20°C to +75°C XWR ↑ to DAC2 [∆4: 10 h to 14h], ±0.5 LSB DAC4 [Fh] XWR ↑ to DAC2 [∆7F: 10 h to 8 Fh], ±1.0 LSB DAC4 [Fh] 10 10 100   tSDA2B  80 200 DAC3 Offset current temperature characteristics Driving current temperature characteristics Settling time dIDA3OF dT ErrDA3 tSDA3A DAC3 = "FFh", set to DAC4 = "Fh", Ta = −20°C to +75°C XWR ↑ to DAC3 [∆4: 10 h to 14h], ±0.5 LSB DAC4 [Fh] XWR ↑ to DAC3 [∆7F: 10 h to 8Fh], ±1.0 LSB DAC4 [Fh]     6 40 10 10 100 µA °C % ns tSDA3B  80 200 DAC4 Offset current temperature characteristics Driving current temperature characteristics dIDA4OF dT ErrDA4 DAC4 = "Fh", set to DAC2 = "FFh", Ta = −20°C to +75°C    6 10 10 µA °C % Supply voltage monitoring block Abnormal supply voltage detection hysteresis VPSDHYS Voltage difference between abnormality detection and release of supply voltage drop, VPSD1 −VPSDH VPSOHYS Voltage difference between abnormality detection and release of supply voltage drop, VPSOH −VPSOL Comparator in abnormally emitted light detection block Input offset voltage VPDCOF Insufficiently emitted light detection VPOCOF Excessively emitted light detection −5 −5   5 5 mV  300  mV  300  17 AN8725FH s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) ICs for Optical Disk Drive Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min        Typ   150 150 150 150 −10 Max Unit µV °C Comparator in abnormally emitted light detection block (continued) Input offset voltage variation to temperature dVPDCOF Insufficiently emitted light detection dT dVPOCOF Excessively emitted light detection dT Abnormally emitted light detection response Abnormally emitted light release response DAC5 block Offset voltage variation to temperature DAC6 block Offset voltage variation to temperature dVDA5OF Set to "Fh" dT  −10 80 µV °C µV °C dVDA5OF Set to "Fh" dT 80 µV °C tPWDNF tPWOVF tPWDR tPWOVF Insufficiently emitted light detection Excessively emitted light detection Insufficiently emitted light detection Excessively emitted light detection 20 20 300 300 300 300 ns ns Optical monitor for abnormally emitted light detection Offset voltage variation to temperature dVEROFR In playback, dT IPD = 0 µA dVEROFW In recording, dT IPD = 0 µA Gain variation to temperature dGERR1 In playback, IPD = 100 µA to 200 µA, Ta = −20°C to +75°C dGERR2 In playback, IPD = 100 µA to 200 µA, Ta = −20°C to +75°C dGERW In recording, IPD = 100 µA to 2 000 µA, Ta = −20°C to +75°C Gain ratio variation to temperature Settling time d GERR Ta = −20°C to +75°C GERW tERR tERW Signal changeover response (× 10 mode) In playback, error: ±0.5%, current variation 100 µA to 200 µA In playback, error: ±0.5%, current variation 100 µA to 2 000 µA   −3 −3 −3 −3     −20 −20 0.5 0.5 0.5 0.5 250 100 170 550 210 200 3 3 3 3 400 200 400 1 000 ns % ns % tERSW1A Playback → recording ±0.5% addr "9": D4 = "0" × 10 tERSW2A Recording → playback ±0.5% addr "9": D4 = "0" × 10 18 ICs for Optical Disk Drive s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. AN8725FH Parameter Symbol Conditions Min   Typ Max Unit Optical monitor for abnormally emitted light detection (continued) Signal changeover response × 5 mode tERSW1B Playback → recording ±0.5%, addr "9": D4 = "1" × 5 tERSW2B Recording → playback ±0.5%, addr "9": D4 = "1" × 5 Control operation response Data writing to LPF-off Data writing to LPF-on Data writing to AAF-off Data writing to AAF-on Data writing to DAC6 changeover *3 Data writing to DAC5 changeover *3 Data writing to shunt on *4 Data writing to shunt off *4 Control operation response RPHOLD ↑ to PWRMONI changeover RPHOLD ↓ to PWRMONI changeover RPHOLD ↑ to mask signal *5 Mask signal width at RPHOLD ↑ *5 RPHOLD ↓ to mask signal *5 Mask signal width at RPHOLD ↑ *5 RPHOLD ↓ to AAFRST signal ↑ *5 AAFRST signal width *5 Shunt circuit "on" Shunt circuit "off" *6 *6 200 250 400 500 ns Register setting → output t87 t88 t85 t86 t207 t208 t89 t90 XWR ↑ to LPF "off" XWR ↑ to LPF "on" XWR ↑ to AAF "off" XWR ↑ to AAF "on" XWR ↑ to DAC6 ±0.5% XWR ↑ to DAC5 ±0.5% XWR ↑ to shunt circuit "on", LDERR register "1" XWR ↑ to shunt circuit "off", LDERR register "0" RPHOLD ↑ to × 1, at having reached ±0.5% RPHOLD ↓ to × 10, AAF, at having reached ±0.5% RPHOLD ↑ to mask signal ↓ Mask signal ↓ to mask signal ↑ at RPHOLD high RPHOLD ↓ to mask signal ↓ Mask signal ↓ to mask signal ↑ at RPHOLD low RPHOLD ↓ to AAFRST ↑ AAFRST ↑ to AAFRST ↓ XCLR ↓ to shunt circuit "on" XCLR ↑ to shunt circuit "off"         0.8 250 60 20 0.9 0.9   2.0 600 200 200 2.5 2.5 430 230 µs ns ns ns µs µs ns ns Input → output t37 t38 t45 t46 t47 t48 t211 t212 t49 t50           0.4 0.4 15 1 15 1 15 2   0.9 0.9 30 1.1 30 1.1 30 2.2 430 230 µs µs ns µs ns µs ns µs ns ns Note) *3: Measure at DACMONI pin. *4: Measuring is impossible outside the IC. *5: Measuring is impossible outside the IC. The values of t46, t48 and t212 are determined by the built-in resistor Rin1 (10 kΩ, allowance: 10%) and the external C1. *6: Measuring is impossible outside the IC. The built-in resistor Rin2 (10 kΩ, allowance: 10%) and the external C2. 19 AN8725FH s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) ICs for Optical Disk Drive Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Control operation response AAF reset "reset" *6 *6 *7 Symbol Conditions AAFRST ↑ to AAF "reset" AAFRST ↓ to AAF "normal" ERFIL ↑ to XLDERR1 ↓ ERFIL ↓ to XLDERR1 ↑ XWR ↑ to AAFRST test mode XWR ↑ to AAFRST normal mode XWR ↑ to SW6 test mode XWR ↑ to SW6 normal mode XWR ↑ to XHFON test mode XWR ↑ to XHFON normal mode XWR ↑ to SW2 test mode XWR ↑ to SW2 normal mode XWR ↑ to SW3 test mode XWR ↑ to SW3 normal mode XWR ↑ to SW1 test mode XWR ↑ to SW1 normal mode XWR ↑ to LEVSW test mode XWR ↑ to LEVSW normal mode XWR ↑ to AAF filter reset XWR ↑ to AAF filter normal XWR ↑ to × 1, when reaching ±0.5% XWR ↑ to × 10, when reaching AAF ±0.5% XWR ↑ to XHFON ↑ XWR ↑ to XHFON ↓ XWR ↑ to SW2 "on" DAC2 ±2.0 LSB XWR ↑ to SW2 "on" DAC2 × 50% XWR ↑ to SW2 "off" 0 mA ±2.0 LSB XWR ↑ to SW2 "on" DAC2 × 50% Min                             Typ   1.2 15 Max Unit Input → output (continued) t213 t214 t215 t216 200 200 2.0  ns ns µs ns AAF reset "normal" Mask signal (wrt. ERFIL) Register → output Mode changeover AAFRST Mode changeover SW6 Mode changeover XFHON Mode changeover SW2 Mode changeover SW3 Mode changeover SW1 Mode changeover LEVSW Test mode operation AAF filter *8 t55 t56 t57 t58 t59 t60 t61 t62 t63 t64 t67 t68 t69 t70 t75 t76 t77 t78 t79 t80 t81 t81A t82 t82A 25 200 90 60 20 25 30 20 30 20 20 35 0.55 0.35 25 200 0.4 0.4 20 25 90 30 50 20 60 400 200 150 60 70 80 50 70 50 50 100 2.0 1.0 100 400 0.9 0.9 60 70 200 80 150 60 ns ns ns ns ns ns µs ns µs Test mode operation Current amplification changeover Test mode operation XHFON Test mode operation SW2 *9 ns ns Note) *6: *7: *8: *9: Measuring is impossible outside the IC. The built-in resistor Rin2 (10 kΩ, allowance: 10%) and the external C2. Measuring is impossible outside the IC. No external fitting until on/off of switch. Set the data to "7Fh". 20 ICs for Optical Disk Drive s Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. AN8725FH Parameter Register → output (continued) Test mode operation SW3 *9 Symbol Conditions XWR ↑ to SW3 "on" DAC3 ±2.0 LSB XWR ↑ to SW3 "on" DAC3 × 50% XWR ↑ to SW3 "off" 0 mA ±2.0 LSB XWR ↑ to SW3 "on" DAC3 × 50% XWR ↑ to SW1 "off" XWR ↑ to SW1 "on" XWR ↑ to DAC5 W, at having reached ±0.5 LSB XWR ↑ to DAC5 R, at having reached ±0.5 LSB XWR ↑ to DAC6 W, at having reached ±0.5 LSB XWR ↑ to DAC6 R, at having reached ±0.5 LSB Min           Typ Max Unit t83 t83A t84 t84A 330 30 50 20 20 35 1.0 0.7 1.0 0.7 600 80 150 60 100 150 2.5 2.5 2.5 2.5 ns Test mode operation SW1 *10 t91 t92 t93 t94 ns µs Test mode operation DAC5 Test mode operation DAC6 t95 t96 µs Note) *9 : Data sets up "7Fh". *10 : DAC1 = 7 Fh, DAC9 = 00 h, DAC7 = 0h, DAC8 = Fh s Terminal Equivalent Circuits Pin No. 1 2 3 4 5 6 Symbol Pin 1: SGND Pin 2: DGND Pin 3: DGND Pin 4: PKMD Pin 5: BIMD Pin 6: RPHOLD Equivalent circuit  DVCC 5 kΩ Pin 4, 5, 6, 11, 12, 13, 14, 27 100 kΩ DGND 7 8 Pin 7: XWR Pin 8: XRD 100 kΩ 5 kΩ DVCC Pin 7, 8, 26 DGND 21 AN8725FH s Terminal Equivalent Circuits (continued) Pin No. 9 DVCC Symbol ICs for Optical Disk Drive Equivalent circuit DVCC Pin 9, 34 DGND 10 11 12 13 14 15 16 17 18 DGND Pin 11: AD0 Pin 12: AD1 Pin 13: AD2 Pin 14: AD3 Pin 15: DT0 Pin 16: DT1 Pin 17: DT2 Pin 18: DT3  Refer to pin 4 DVCC DGND DVCC Pin 15, 16, 17, 18, 22, 23, 24, 25 DGND 19 20 21 22 23 24 25 26 27 28 29 Pin 19: DGND Pin 20: SGND Pin 21: SGND Pin 22: DT4 Pin 23: DT5 Pin 24: DT6 Pin 25: DT7 XLDEN XCLR DGND XLDERR  Refer to pin 15 Refer to pin 7 Refer to pin 4  DVCC Pin 29, 32 DGND 22 ICs for Optical Disk Drive s Terminal Equivalent Circuits (continued) Pin No. 30 31 Symbol Pin 30: PWMSK Pin 31: ERFIL Equivalent circuit AN8725FH DVCC Schmitt-trigger Pin 30, 31 10 kΩ DGND 32 33 34 35 36 XHFON DGND DVCC AGND VC Refer to pin 29  Refer to pin 9  AVCC 36 50 Ω AGND 37 RREF AVCC 37 AGND 38 LPF11 AVCC Pin 38, 43 IGND 23 AN8725FH s Terminal Equivalent Circuits (continued) Pin No. 39 LPF12 Symbol ICs for Optical Disk Drive Equivalent circuit AVCC Pin 39, 44 IGND 40 41 42 43 44 45 Pim 40 : IGND Pim 41 : SGND Pim 42 : SGND LPF91 LPF92 AVCC AVCC Pin 45, 58 Refer to pin 38 Refer to pin 39  AGND 46 DETMONI CVCC AVCC 46 CGND 47 PWRMONI 50 49 48 AVCC 47 CGND 24 ICs for Optical Disk Drive s Terminal Equivalent Circuits (continued) Pin No. 48 AAF Symbol 50 49 AN8725FH Equivalent circuit AVCC 48 CGND 60 49 IVOUT 50 AVCC 49 CGND 50 IVIN AVCC 50 CGND 51 IPD CVCC AVCC 51 CGND 52 CGND  25 AN8725FH s Terminal Equivalent Circuits (continued) Pin No. 53 CVCC 53 Symbol CVCC ICs for Optical Disk Drive Equivalent circuit CGND 54 55 56 AGND Pim 55 : ERREF Pim 56 : VNR  AVCC Pin 55, 56 AGND 57 DACMONI AVCC 57 AGND 58 59 60 61 62 63 64 AVCC Pim 59 : SGND Pim 60 : SGND Pim 61 : SGND Pim 62 : RGND Pim 63 : RDCP1 Pim 64 : RDCP2 Refer to pin 45  RVCC Pin 63, 64 RGND 26 ICs for Optical Disk Drive s Terminal Equivalent Circuits (continued) Pin No. 65 LDRP 68 AN8725FH Symbol RVCC Equivalent circuit AVCC 65 SGND 66 67 68 N.C. N.C. RVCC 68 RVCC   RGND 69 LDPK Pin 70, 75 AVCC Pin 69, 74 SGND PBGND 70 XLDPK 70 75 SGND 69 74 27 AN8725FH s Terminal Equivalent Circuits (continued) Pin No. 71 72 PKGND PKVCC Pin 72 77 PKVCC BIVCC ICs for Optical Disk Drive Symbol Equivalent circuit  SGND 73 PKDCP AVCC Pin 73, 78 SGND PBGND 74 75 76 77 78 79 80 LDBI XLDBI BIGND BIVCC BIDCP SGND SGND Refer to pin 69 Refer to pin 70  Refer to pin 72 Refer to pin 73   s Application Notes 1. PD  Ta curves of QFP080-P-1212 2.000 1.920 1.800 1.600 Mounted on standard board (glass epoxy: 75 mm × 75 mm × t0.8 mm) Rth(j-a) = 65.1°C/W Power dissipation PD (W) 1.400 1.200 1.000 0.800 0.600 0.400 0.200 0.000 Independent IC without a heat shink Rth(j-a) = 125.0°C/W 0 25 50 75 100 125 150 Ambient temperature Ta (°C) 28 ICs for Optical Disk Drive s Application Notes (continued) 2. Timing chart 1) Definition of rising and falling AN8725FH tHL 90% 10% tLH 90% 10% 2) Interface In write t2 AD0 to AD3 Write address t3 Write data t4 t7 t6 t9 Read address t10 Read data t14 In read t13 DT0 to DT7 XWR t11 XRD Parameter Switching characteristics Symbol tLH tHL 10% to 90% 90% to 10% Conditions Min   50 70 10 35 10  0 0 0 0 Typ             Max 10 10      50    30 Unit ns Pulse width t4 t11 XWR ↓ to XWR ↑ XRD ↓ to XRD ↑ AD defined to XWR ↓ DT defined to XWR ↑ AD defined to XRD ↓ XRD ↓ to DT defined XWR ↑ to AD released XWR ↑ to DT released XRD ↑ to AD released XRD ↑ to DT released ns Setup time t2 t3 t9 t10 ns Hold time t6 t7 t13 t14 ns 29 AN8725FH s Application Notes (continued) 3. I/O specifications • Parallel interface 1) I/O level is CMOS. ICs for Optical Disk Drive 2) Transfers a digital signal to DAC and each mode setting register with 4 addresses, 8 data and 2 control signals. Address signal AD0 to AD3 Data signal DT0 to DT7 Control signal XWR, XRD 3) Write can be done at the rise of XWR. However, selection of a write register can be done at the fall of XWR. DAC and register data are stored at D-FF. 4) Read appears on DT0 to DT7 at XRD = low. 5) Refer to "s Application Notes, 2. Timing chart" for the timing chart. 6) Each signal line is pulled up and down as below: Pull-down to GND with 100 kΩ AD0 to AD3 DT0 to DT7 Pull-up to VCC with 100 kΩ XWR WRD 30 ICs for Optical Disk Drive s Application Notes (continued) 4. Signal flow DT0 to DT7 DAC78 "0" register 4 4 AN8725FH DAC7 DAC8 DAC1 "1" register 8 DAC1 DAC2 "2" register 8 DAC2 DAC3 "3" register 8 DAC3 AD0 4 to AD3 XWR XRD WR0 RD0 WR1 RD1 WR2 RD2 WR3 RD3 WR4 RD4 WR5 RD5 WR6 RD6 WR7 RD7 WR8 RD8 WR9 RD9 WRA RDA WRB RDB WRC RDC WRE RDE WRF RDF DAC4 "4" register 4 DAC4 DAC56R "5" register 8 DAC5 DAC56W "6" register 8 DAC6 CNTL1 "7" register CNTL2 "8" register CNTL3 "9" register ERRMSK "A" register ERRFAC "B" register DAC9 "C" register 5 DAC9 DUMY "E" register LDDENB "F" register 31 AN8725FH s Application Notes (continued) 5. Register circuit configuration 1) DAC1, DAC2, DAC3, DAC4, DAC9 D-FF 8-bit DT0 to DT 7 White DAC* (0 to 7) D Q 8-bit ICs for Optical Disk Drive Analog output DAC* DAC* (0 to 7) WR* CK 3-state driver 8-bit Read DAC* (0 to 7) 8-bit DAC* (0 to 7) RD* 2) DAC7, DAC8 D-FF 8-bit DT0 to DT 7 White DAC78 (0 to 7) D Q 8-bit DAC78 (0 to 7) 4-bit DAC78 (4 to 7) DAC7 4-bit WR0 CK 3-state driver 8-bit Read DAC78 (0 to 7) 8-bit DAC78 (0 to 7) 4-bit DAC78 (0 to 3) DAC8 4-bit RD0 32 ICs for Optical Disk Drive s Application Notes (continued) 5. Register circuit configuration (continued) 3) DAC56R, DAC56W D-FF 8-bit DT0 to DT7 White data (0 to 7) D Q 8-bit Data (0 to 7) A Selector AN8725FH WR5 CK Data (0 to 3) 3-state driver 8-bit Read data (0 to 7) 8-bit Data (0 to 7) RPHOLD = low output A RPHOLD = high output B Data (4 to 7) Excessively emitted light DAC6 4-bit Insufficiently emitted light DAC5 4-bit RD5 D-FF 8-bit White data (0 to 7) D Q 8-bit Data (0 to 7) B WR6 CK 3-state driver 8-bit Read data (0 to 7) 8-bit Data (0 to 7) RD6 RPHOLD 33 AN8725FH s Application Notes (continued) 5. Register circuit configuration (continued) 4) CNTL1, CNTL2, CNTL3, ERRMSK, ERRFAC, DUMY, LDDENB D-FF 8-bit DT0 to DT7 White data (0 to 7) D Q ICs for Optical Disk Drive 8-bit Data (0 to 7) Each control circuit WR* CK 3-state driver 8-bit Read data (0 to 7) 8-bit Data (0 to 7) RD* 34 ICs for Optical Disk Drive s Application Circuit Example AN8725FH PD C11 C10 R5 C9 C8 47 PWRMONI 57 DACMONI 43 LPF91 R3 46 DETMONI R4 55 ERREF 49 IVOUT 54 AGND 52 CGND C7 C6 42 SGND 41 SGND 40 IGND 39 LPF12 C5 38 R2 60 SGND 59 SGND SGND 61 RGND 62 R6 C12 C13 LD R7 R9 RDCP1 63 RDCP2 64 44 LPF92 53 CVCC 58 AVCC 45 AVCC 56 VNR 50 IVIN 48 AAF 51 IPD LPF11 37 RREF R1 36 VC 35 AGND 34 DVCC 33 DGND C3 C4 R8 LDRP 65 N.C. 66 C14 VCC R10 67 N.C. RVCC 68 LDPK 69 XLDPK 70 PKGND 71 C15 32 XHFON 31 30 29 C2 C1 ERFIL (Rin2) PWMSK (Rin1) XLDERR PKVCC 72 PKDCP 73 LDBI 74 XLDBI 75 BIGND 76 C16 tantalum 28 DGND 27 XCLR 26 XLDEN 25 DT7 24 DT6 23 DT5 22 DT4 21 SGND DGND 10 AD0 11 AD1 12 AD2 13 AD3 14 DT0 15 DT1 16 DT2 17 DT3 18 DGND 19 SGND 20 1 2 3 4 5 6 7 8 XRD 9 C19 R11 C17 C18 tantalum BIVCC 77 BIDCP 78 SGND 79 SGND 80 RPHOLD SGND DGND DGND PKMD BIMD XWR DVCC 35 AN8725FH s Application Circuit Example (continued) • Resistance and capacitance Symbol R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 (Rin1) (Rin2) Resistor value 10    1 10 82 10 82 3 3 10 10 Unit kΩ    kΩ kΩ Ω kΩ Ω Ω Ω kΩ kΩ Symbol C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 ICs for Optical Disk Drive Resistor value 220 100 0.1 0.01   0.1  18 0.1 0.1 5 600 5 600 0.1 0.1 1 0.1 1 0.1 Unit pF pF µF µF   µF  pF µF µF pF pF µF µF µF µF µF µF 36