AK5383VS

ASAHI KASEI [AK5383] AK5383 Enhanced Dual Bit ∆Σ 96kHz 24-Bit ADC GENERAL DESCRIPTION The AK5383 is a 24bit, 128x oversampling 2ch A/D Converter for professional digital audio systems. The modulator in the AK5383 uses the new developed Enhanced Dual Bit architecture. This new architecture achieves the wide dynamic range, while keeping much the same superior distortion characteristics as conventional Single Bit way. The AK5383 performs 110dB dynamic range, so the device is suitable for professional studio equipment such as digital mixer, digital VTR etc. FEATURES p Enhanced Dual Bit ADC p Sampling Rate: 1kHz~108kHz p Full Differential Inputs p S/(N+D): 103dB p DR: 110dB p S/N: 110dB p High Performance Linear Phase Digital Anti-Alias filter • Passband: 0~21.768kHz(@fs=48kHz) • Ripple: 0.001dB • Stopband: 110dB p Digital HPF & Offset Calibration for Offset Cancel p Power Supply: 5V±5%(Analog), 3~5.25V(Digital) p Power Dissipation: 210mW p Package: 28pin SOP, VSOP p AK5393 Pin compatible SMODE1 SMODE2 12 VREFL GNDL VCOML AINL+ AINLZCAL AINR+ AINRVCOMR VREFR GNDR 1 SCLK LRCK FSYNC 14 13 16 11 2 15 Serial Output Interface Voltage Reference SDATA 3 4 5 6 25 24 Delta-Sigma Modulator Decimation Filter HPF Delta-Sigma Modulator Decimation Filter HPF 19 HPFE 17 18 MCLK DFS 26 28 27 23 VA Voltage Reference 22 AGND Controller 21 BGND 9 CAL M0049-E-03 10 RST Calibration SRAM 7 VD 8 DGND 2000/4 -1- ASAHI KASEI [AK5383] n Ordering Guide AK5383VS AK5383VF AKD5383 –10 ~ +70°C 28pin SOP –40 ~ +85°C 28pin VSOP AK5383 Evaluation Board n Pin Layout VREFL 1 28 VREFR GNDL 2 27 GNDR VCOML 3 26 VCOMR AINL+ 4 25 AINR+ AINL- 5 24 AINR- ZCAL 6 23 VA VD 7 22 AGND DGND 8 21 BGND CAL 9 20 TEST RST 10 19 HPFE SMODE2 11 18 DFS SMODE1 12 17 MCLK LRCK 13 16 FSYNC SCLK 14 15 SDATA Top View n Compatibility with AK5393 S/(N+D) DR, S/N AK5393 AK5383 105dB 117dB 103dB 110dB M0049-E-03 2000/4 -2- ASAHI KASEI [AK5383] PIN/FUNCTION No. Pin Name I/O Function 1 VREFL O 2 GNDL - Lch Reference Voltage Pin, 3.75V Normally connected to GNDL with a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor. Lch Reference Ground Pin, 0V 3 4 VCOML AINL+ O I Lch Common Voltage Pin, 2.75V Lch Analog positive input Pin 5 6 AINLZCAL I I 7 VD - Lch Analog negative input Pin Zero Calibration Control Pin This pin controls the calibration reference signal. "L": VCOML and VCOMR "H": Analog Input Pins (AINL±, AINR±) Digital Power Supply Pin, 3.3V 8 9 DGND CAL O 10 RST I 11 12 SMODE2 SMODE1 13 LRCK I I I/O Digital Ground Pin, 0V Calibration Active Signal Pin "H" means the offset calibration cycle is in progress. Offset calibration starts when RST goes "H". CAL goes "L" after 8704 LRCK cycles for DFS="L", 17408 LRCK cycles for DFS ="H". Reset Pin When "L", Digital section is powered-down. Upon returning "H", an offset calibration cycle is started. An offset calibration cycle should always be initiated after power-up. Serial Interface Mode Select Pin MSB first, 2's compliment. SMODE2 SMODE1 MODE LRCK L L Slave mode : MSB justified : H/L L H Master mode : Similar to I2S : H/L H L Slave mode : I2S : L/H H H Master mode : I2S : L/H Left/Right Channel Select Clock Pin LRCK goes "H" at SMODE2="L" and "L" at SMODE2="H" during reset when SMODE1 "H". M0049-E-03 2000/4 -3- ASAHI KASEI [AK5383] 14 SCLK I/O 15 SDATA O 16 FSYNC I/O 17 MCLK I 18 DFS I 19 HPFE I 20 TEST I 21 22 23 24 25 26 27 28 BGND AGND VA AINRAINR+ VCOMR GNDR VREFR I I O O Serial Data Clock Pin Data is clocked out on the falling edge of SCLK. Slave mode: SCLK requires more than 48fs clock. Master mode: SCLK outputs a 128fs(DFS="L") or 64fs(DFS="H") clock. SCLK stays "L" during reset. Serial Data Output Pin MSB first, 2's complement. SDATA stays "L" during reset. Frame Synchronization Signal Pin Slave mode: When "H", the data bits are clocked out on SDATA. In I2S mode, FSYNC is Don’t care. Master mode: FSYNC outputs 2fs clock. FSYNC stays "L" during reset. Master Clock Input Pin 256fs at DFS="L", 128fs at DFS="H". Double Speed Sampling Mode Pin "L": Normal Speed "H": Double Speed High Pass Filter Enable Pin "L": Disable "H": Enable Test Pin ( pull-down pin) Should be connected to GND. Substrate Ground Pin, 0V Analog Ground Pin, 0V Analog Supply Pin, 5V Rch Analog negative input Pin Rch Analog positive input Pin Rch Common Voltage Pin, 2.75V Rch Reference Ground Pin, 0V Rch Reference Voltage Pin, 3.75V Normally connected to GNDR with a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor Note: All digital inputs should not be left floating. M0049-E-03 2000/4 -4- ASAHI KASEI [AK5383] ABSOLUTE MAXIMUM RATINGS (AGND,BGND,DGND=0V; Note 1) Parameter Symbol min max Units Power Supplies: Analog Digital |BGND-DGND| (Note 2) Input Current, Any Pin Except Supplies Analog Input Voltage VA VD ∆GND IIN VINA -0.3 -0.3 -0.3 6.0 6.0 0.3 ±10 VA+0.3 V V V mA V Digital Input Voltage Ambient Temperature (power applied) AK5383VS AK5383VF Storage Temperature VIND -0.3 VD+0.3 V Ta Ta Tstg -10 -40 -65 70 85 150 °C °C °C Notes: 1. All voltages with respect to ground. 2. AGND, BGND and DGND must be connected to the same analog ground plane. WARNING: Operation at or beyond these limits may result in permanent damage to the device. Normal operation is not guaranteed at these extremes. RECOMMENDED OPERATING CONDITIONS (AGND,BGND,DGND=0V; Note 1) Parameter Symbol min typ max Units Power Supplies: Analog VA 4.75 (Note 3) Digital VD 3.0 Notes:1. All voltages with respect to ground. 3. The power up sequence between VA and VD is not critical. 5.0 3.3 5.25 5.25 V V * AKM assumes no responsibility for the usage beyond the conditions in this data sheet. M0049-E-03 2000/4 -5- ASAHI KASEI [AK5383] ANALOG CHARACTERISTICS (Ta=25°C; VA=5.0V; VD=3.3V; AGND,BGND,DGND=0V; fs=48kHz; Signal Frequency=1kHz; 24bit Output; Measurement frequency=10Hz~20kHz; unless otherwise specified) Parameter min typ max Units Resolution Analog Input Characteristics: S/(N+D) fs=48kHz 24 -1dBFS -20dBFS -60dBFS fs=96kHz -1dBFS BW=40kHz -20dBFS -60dBFS Dynamic Range (-60dBFS with A-Weighted ) S/N ( A-Weighted ) Interchannel Isolation Interchannel Gain Mismatch Gain Drift Offset Error after calibration, HPF=OFF after calibration, HPF=ON Offset Drift (HPF=OFF) Offset Calibration Range (HPF=OFF) 96 93 105 105 110 Input Voltage (AIN+)-(AIN-) Input Impedance ±2.3 8 - Power Supplies Power Supply Current VA VD (fs=48kHz; DFS=L) (fs=96kHz; DFS=H) Power Dissipation Power Supply Rejection (Note 4) 103 87 47 100 81 41 110 110 120 0.1 ±200 ±1 ±10 ±50 0.5 150 ±1000 - Bits dB dB dB dB dB dB dB dB dB dB ppm/°C LSB24 LSB24 LSB24/°C mV ±2.45 14 ±2.6 V kΩ 38 6 9 210 70 54 9 14 300 mA mA mA mW dB Note: 4. PSRR is applied to VA, VD with 1kHz, 20mVpp. M0049-E-03 2000/4 -6- ASAHI KASEI [AK5383] FILTER CHARACTERISTICS(fs=48kHz) (Ta=25°C; VA=5.0V±5%; VD=3.0~5.25V; fs=48kHz, DFS=L) Parameter Symbol min typ ADC Digital Filter(Decimation LPF): Passband (Note 5) PB 0 Stopband (Note 5) SB 26.232 Passband Ripple PR Stopband Attenuation (Note 6) SA 110 Group Delay Distortion ∆GD 0 Group Delay (Note 7) GD 38.7 ADC Digital Filter(HPF): Frequency response (Note 5) -3dB FR 1.0 -0.1dB 6.5 FILTER CHARACTERISTICS(fs=96kHz) (Ta=25°C; VA=5.0V±5%; VD=3.0~5.25V; fs=96kHz, DFS=H) Parameter Symbol min typ ADC Digital Filter(Decimation LPF): Passband (Note 5) PB 0 Stopband (Note 5) SB 52.464 Passband Ripple PR Stopband Attenuation (Note 8) SA 110 Group Delay Distortion ∆GD 0 Group Delay (Note 7) GD 38.8 ADC Digital Filter(HPF): Frequency response (Note 5) -3dB -0.1dB FR 2.0 13.0 max Units 21.768 kHz kHz dB dB us 1/fs ±0.001 Hz Hz max Units 43.536 kHz kHz dB dB us 1/fs ±0.003 Hz Hz Notes: 5. The passband and stopband frequencies scale with fs. 6. The analog modulator samples the input at 6.144MHz for an output word rate of 48kHz. There is no rejection of input signals which are multiples of the sampling frequency (that is: there is no rejection for n x 6.144MHz ± 21.768kHz, where n=1,2,3···). 7. The calculating delay time which occurred by digital filtering. This time is from the input of analog signal to setting the 24bit data of both channels to the output register. 40.7/fs(DFS = "L"),40.8/fs(DFS = "H")typ. at HPF:ON. 8. The analog modulator samples the input at 6.144MHz for an output word rate of 96kHz. There is no rejection of input signals which are multiples of the sampling frequency (that is: there is no rejection for n x 6.144MHz ± 43.536kHz, where n=1,2,3···). M0049-E-03 2000/4 -7- ASAHI KASEI [AK5383] DIGITAL CHARACTERISTICS (Ta=25°C; VA=5.0V±5%; VD=3.0 ~ 5.25V) Parameter Symbol min High-Level Input Voltage VIH 70%VD Low-Level Input Voltage VIL High-Level Output Voltage Iout=-20µA VOH VD-0.1 Low-Level Output Voltage Iout=20µA VOL Input Leakage Current Iin - typ - max 30%VD 0.1 ±10 Units V V V V µA SWITCHING CHARACTERISTICS (Ta=25°C; VA=5.0V±5%; VD=3.0 ~ 5.25V; CL=20pF) Parameter Control Clock Frequency Master Clock 256fs: Pulse width Low Pulse width High Serial Data Output Clock (SCLK) Channel Select Clock (LRCK) duty cycle Serial Interface Timing (Note 9) Slave Mode(SMODE1="L") SCLK Period SCLK Pulse width Low Pulse width High SCLK falling to LRCK Edge (Note 10) LRCK Edge to SDATA MSB Valid SCLK falling to SDATA Valid SCLK falling to FSYNC Edge Master Mode(SMODE1="H") SCLK Frequency (DFS="L") SCLK Frequency (DFS="H") duty cycle FSYNC Frequency duty cycle SCLK falling to LRCK Edge LRCK Edge to FSYNC rising SCLK falling to SDATA Valid SCLK falling to FSYNC Edge Reset/Calibration timing RST Pulse width RST falling to CAL rising RST rising to CAL falling (Note 11) RST rising to SDATA Valid (Note 11) Symbol min typ max Units fCLK tCLKL tCLKH fSLK fs 0.256 29 29 12.288 13.824 6.144 48 6.912 108 75 MHz ns ns MHz kHz % tSLK tSLKL tSLKH tSLR tDLR tDSS tSF 144.7 65 65 -45 45 45 45 45 ns ns ns ns ns ns ns 1 25 -45 128fs 64fs 50 2fs 50 fSLK fSLK fFSYNC tSLR tLRF tDSS tSF -20 tRTW tRCR tRCF tRTV 150 20 1 45 20 -20 50 8704 8960 Hz Hz % Hz % ns tslk ns ns ns ns 1/fs 1/fs Notes: 9. Refer to Serial Data interface. 10. Specified LRCK edges not to coincide with the rising edges of SCLK. 11. The number of the LRCK rising edges after RST brought high at DFS="L". The value is in master mode. In slave mode it becomes one LRCK clock(1/fs) longer. When DFS="H", tRCF=17408 and tRTV=17920. M0049-E-03 2000/4 -8- ASAHI KASEI [AK5383] n Timing Diagram tSLK LRCK tSLKL tSLKH tSLR SCLK tDSS tDLR MSB SDATA MSB-1 MSB-2 Serial Data Timing (Slave Mode, FSYNC="H") LRCK tSLR SCLK tSF tSF FSYNC tDSS tDLR MSB SDATA D1 D0 Serial Data Timing (Slave Mode) tSLK LRCK tSLKL tSLKH tSLR SCLK tDSS MSB SDATA tDSS MSB-1 Serial Data Timing (I2S Slave Mode, FSYNC = Don't Care) M0049-E-03 2000/4 -9- ASAHI KASEI [AK5383] LRCK tSLR SCLK tSF FSYNC tSF tLRF tDSS SDATA MSB MSB-1 Serial Data Timing (Master Mode & I2S Master Mode, DFS ="L") tRTW tRTV RST tRCF CAL tRCR SDATA Reset & Calibration Timing M0049-E-03 2000/4 - 10 - ASAHI KASEI [AK5383] OPERATION OVERVIEW n System Clock Input The external clocks which are required to operate the AK5383 are MCLK, LRCK(fs), SCLK. MCLK should be synchronized with LRCK but the phase is free of care. MCLK should be 256fs in normal sampling mode(DFS="L") and double sampling mode needs 128fs as MCLK. Table 2 illustrates standard audio word rates and corresponding frequencies used in the AK5383. As the AK5383 includes the phase detect circuit for LRCK, the AK5383 is reset automatically when the synchronization is out of phase by changing the clock frequencies. Therefore, the reset is only needed for power-up. All external clocks must be present unless RST ="L", otherwise excessive current may result from abnormal operation of internal dynamic logic. Speed Normal(DFS ="L") Double(DFS ="H") 54kHz ~128fs 256fs 108kHz ~64fs 128fs LRCK (max) SCLK MCLK Table 1. System Clocks fs MCLK SCLK 32.0kHz 44.1kHz 48.0kHz 96.0kHz 8.1920MHz 11.2896MHz 12.2880MHz 12.2880MHz 4.0960MHz 5.6448MHz 6.1440MHz 6.1440MHz Table 2. Examples of System Clock Frequency n Serial Data Interface The AK5383 supports four serial data formats which can be selected via SMODE1 and SMODE2 pins(Table 3). The data format is MSB-first, 2's complement. Figure Figure 1 Figure 2 Figure 3 Figure 4 SMODE2 L L H H SMODE1 Mode L H L H Slave Mode Master Mode I2S Slave Mode I2S Master Mode LRCK Lch = H, Rch =L Lch =H, Rch =L Lch =L, Rch =H Lch =L, Rch =H Table 3. Serial I/F Format M0049-E-03 2000/4 - 11 - ASAHI KASEI [AK5383] LRCK(i) 0 1 2 3 20 21 22 23 24 25 15 0 1 2 3 20 21 22 23 24 25 0 1 SCLK(i) FSYNC(i) SDATA(o) 23 22 21 4 3 2 0 1 23 22 21 7 4 3 Lch Data 2 1 0 23 2 1 24 25 22 Rch Data FSYNC(i) SDATA(o) 23 22 5 4 3 2 1 0 23 22 5 4 3 0 23 23:MSB,0:LSB Figure 1. Serial Data Timing (Slave Mode) LRCK(o) 0 1 2 3 20 21 22 23 24 25 15 33 34 0 1 2 3 20 21 22 23 33 34 0 1 SCLK(o) FSYNC(o) SDATA(o) 23 22 5 4 3 1 2 0 23 22 5 4 3 2 1 0 23 Rch Data Lch Data 23:MSB,0:LSB Figure 2. Serial Data Timing (Master mode, DFS="L") LRCK(i) 0 1 2 3 19 20 21 22 23 24 0 1 2 3 19 20 21 22 23 24 0 1 SCLK(i) SDATA(o) 23 22 6 5 4 3 2 1 0 23 22 6 5 4 3 2 1 0 23 Rch Data Lch Data 23:MSB,0:LSB Figure 3. Serial Data Timing (I2S Slave mode, FSYNC: Don’t care.) LRCK(o) 0 1 2 3 20 21 22 23 24 25 15 33 34 0 1 2 3 20 21 22 23 24 25 33 34 0 1 SCLK(o) FSYNC(o) SDATA(o) 23 22 5 4 3 2 1 0 23 Lch Data 23 22 5 4 3 2 1 0 23 Rch Data 23:MSB,0:LSB Figure 4. Serial Data Timing (I2S Master mode, DFS="L") M0049-E-03 2000/4 - 12 - ASAHI KASEI [AK5383] n Offset Calibration When RST pin goes to "L", the digital section is powered-down. Upon returning "H", an offset calibration cycle is started. An offset calibration cycle should always be initiated after power-up. During the offset calibration cycle, the digital section of the part measures and stores the values of calibration input of each channel in registers. The calibration input value is subtracted from all future outputs. The calibration input may be obtained from either the analog input pins (AIN+/-) or the VCOM pins depending on the state of the ZCAL pin. With ZCAL "H", the analog input pin voltages are measured, and with ZCAL "L", the VCOM pin voltages are measured. The CAL output is "H" during calibration. n Digital High Pass Filter The AK5383 also has a digital high pass filter for DC offset cancel. The cut-off frequency of the HPF is 1Hz at fs=48kHz and also scales with sampling rate(fs). M0049-E-03 2000/4 - 13 - ASAHI KASEI [AK5383] SYSTEM DESIGN Figure 5 and 6 show the system connection diagram. An evaluation board[AKD5383] is available which demonstrates the optimum layout, power supply arrangements and measurement results. 10µ 0.1µ + 1 VREFL VREFR 28 2 GNDL GNDR 27 3 VCOML VCOMR 26 Lch+ 4 AINL+ AINR+ 25 Rch+ Lch- 5 AINL- AINR- 24 Rch- 6 ZCAL VA 23 0.22µ +3.3~5V Digital + 0.1µ 10µ 0.22µ AK5383 0.1µ + 10µ 7 VD AGND 8 DGND BGND 21 9 CAL TEST 20 HPFE 19 + +5V Analog 10µ 22 0.1µ Reset & Cal Control 10 RST Mode 11 SMODE2 DFS 18 Select 12 SMODE1 MCLK 17 13 LRCK FSYNC 16 SCLK SDATA 15 fs System Controller 14 256fs@fs=48k System Ground Analog Ground Figure 5. Typical Connection Diagram Notes: - LRCK = fs, SCLK=64fs. - Power lines of VA and VD should be distributed separately from the point with low impedance of regulator etc. - AGND, BGND and DGND must be connected to the same analog ground plane. - All input pins except pull-down/pull-up pins should not be left floating. Digital Ground Analog Ground System Controller 1 VREFL VREFR 28 2 GNDL GNDR 27 3 VCOML VCOMR 26 4 AINL+ AINR+ 25 5 AINL- AINR- 24 6 ZCAL VA 23 7 VD AGND 22 8 DGND BGND 21 9 CAL TEST 20 HPFE 19 10 RST AK5383 11 SMODE2 DFS 18 12 SMODE1 MCLK 17 13 LRCK FSYNC 16 14 SCLK SDATA 15 Figure 6 Ground layout M0049-E-03 2000/4 - 14 - ASAHI KASEI [AK5383] 1. Grounding and Power Supply Decoupling The AK5383 requires careful attention to power supply and grounding arrangements. Analog ground and digital ground should be separate and connected together near to where the supplies are brought onto the printed circuit board. Decoupling capacitors should be as near to the AK5383 as possible, with the small value ceramic capacitor being the nearest. 2. On-chip voltage reference and VCOM The reference voltage for A/D converter is a differential voltage between the VREFL/R output voltage and the GNDL/R input voltage. The GNDL/R are connected to AGND and a 10uF electrolytic capacitor parallel with a 0.1uF ceramic capacitor between the VREFL/R and the GNDL/R eliminate the effects of high frequency noise. Especially a ceramic capacitor should be as near to the pins as possible. And all digital signals, especially clocks, should be kept away from the VREFL/R pins in order to avoid unwanted coupling into the AK5383. No load current may be taken from the VREFL/R pins. VCOM is a common voltage of the analog signal. In order to eliminate the effects of high frequency noise, a 0.22uF ceramic capacitor should be connected as near to the VCOM pin as possible. And all signals, especially clocks, should be kept away from the VCOM pin in order to avoid unwanted coupling into the AK5383. No load current may be drawn from the VCOM pin. 3. Analog Inputs Analog signal is differentially input into the modulator via the AIN+ and the AIN- pins. The input voltage is the difference between AIN+ and AIN- pins. The full-scale of each pin is nominally ± 2.45Vpp(typ). The AK5383 can accept input voltages from AGND to VA. The ADC output data format is 2's complement. The output code is 7FFFFFH(@24bit) for input above a positive full scale and 800000H(@24bit) for input below a negative full scale. The ideal code is 000000H (@24bit) with no input signal. The DC offset is removed by the offset calibration. The AK5383 samples the analog inputs at 128fs(6.144MHz @fs=48kHz,DFS="L"). The digital filter rejects noise above the stop band except for multiples of 128fs. A simple RC filter may be used to attenuate any noise around 128fs and most audio signals do not have significant energy at 128fs. The AK5383 accepts +5V supply voltage. Any voltage which exceeds the upper limit of VA+0.3V and lower limit of AGND-0.3V and any current beyond 10mA for the analog input pins(AIN+ /-) should be avoided. Excessive currents to the input pins may damage the device. Hence input pins must be protected from signals at or beyond these limits. Use caution specially in case of using ±15V in other analog circuits. M0049-E-03 2000/4 - 15 - ASAHI KASEI [AK5383] Figure 7shows an input buffer circuit example 1. This is a full-differential input buffer circuit with an inverted-amp (gain :-10dB). The capacitor of 10nF between AIN+ /- decreases the clock feed through noise of modulator, and composes a 1st order LPF(fc=360kHz) with 22ohm resistor before the capacitor. This circuit also has a 1st order LPF(fc=370kHz) composed of op-amp. In this example, the internal offset is removed by self calibration. The evaluation board should be referred about the detail. 910 4.7k 4.7k Analog In VP+ + 8.1Vpp 3k 22 + Bias VP- AK5383 470p 47µ 2.45Vpp AIN+ 910 NJM5532 10n 470p 47µ 3k VA+ 22 - VA=±5V AIN- + VP=±15V 10k Bias Bias 2.45Vpp CAL + 10k 0.1 µ 10µ "L" at self calibration ZCAL Figure 7 Differential Input Buffer Example 1 Figure 8 shows an input buffer circuit example 2. (1st order HPF; fc=0.66Hz, Table 4, 1st order LPF; fc=590kHz, gain=14dB, Table 5). The analog signal is able to input through XLR or BNC connectors. (short JP1 and JP2 for BNC input, open JP1 and JP2 for XLR input). The input level of this circuit is +/-12.4Vpp (AK5383: +/-2.45Vpp Typ.). 12.4Vpp BNC JP1 22u Vin+ 1k 180 - AK5383 AIN+ + 2.45Vpp NJM5534 VA 10k XLR 4.7k 0.1u 4.7k 4.7k 4.7k 10u NJM5534 180 Vin- + 12.4Vpp 100 10k JP2 - 1.5n Bias 2.45Vpp + 22u 1k NJM5534 AK5383 AIN- Figure 8 Differential Input Buffer Example 2 fin 1Hz 10Hz Frequency Response -1.56dB -0.02dB Table 4. Frequency Response of HPF Fin 20kHz 40kHz Frequency Response -0.005dB -0.02dB Table 5. Frequency Response of LPF M0049-E-03 6.144MHz -15.6dB 2000/4 - 16 - ASAHI KASEI [AK5383] PACKAGE (AK5383VS) 1.095TYP 18.7±0.3 2.2 ± 0.1 +0.1 0.15-0.05 0.10 0.4±0.1 +0.1 0.1-0.05 1.27 0.75 ± 0.2 10.4 ± 0.3 7.5 ± 0.2 28pin SOP (Unit: mm) 0.12 M 0-10° n Package & Lead frame material Package molding compound: Lead frame material: Lead frame surface treatment: Epoxy Cu Solder plate M0049-E-03 2000/4 - 17 - ASAHI KASEI [AK5383] PACKAGE (AK5383VF) 28pin VSOP (Unit: mm) *9.8±0.2 1.25±0.2 0.675 28 15 7.6±0.2 *5.6±0.2 A 14 1 +0.1 0.15-0.05 0.65 0.22±0.1 0.1±0.1 0.5±0.2 Detail A 0.10 1.0 Seating Plane NOTE: Dimension "*" does not include mold flash. 0-10° n Package & Lead frame material Package molding compound: Lead frame material: Lead frame surface treatment: Epoxy Cu Solder plate M0049-E-03 2000/4 - 18 - ASAHI KASEI [AK5383] MARKING (AK5383VS) AKM JAPAN AK5383VS XXXBYYYYC XXXXBYYYYC: XXXB: YYYYC: Date code identifier Lot number (X : Digit number, B : Alpha character ) Assembly date (Y : Digit number C : Alpha character) M0049-E-03 2000/4 - 19 - ASAHI KASEI [AK5383] MARKING (AK5383VF) AKM AK5383VF XXXBYYYYC XXXXBYYYYC: XXXB: YYYYC: Date code identifier Lot number (X : Digit number, B : Alpha character ) Assembly date (Y : Digit number C : Alpha character) IMPORTANT NOTICE • These products and their specifications are subject to change without notice. Before considering any use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or authorized distributor concerning their current status. • AKM assumes no liability for infringement of any patent, intellectual property, or other right in the application or use of any information contained herein. • Any export of these products, or devices or systems containing them, may require an export license or other official approval under the law and regulations of the country of export pertaining to customs and tariffs, currency exchange, or strategic materials. • AKM products are neither intended nor authorized for use as critical components in any safety, life support, or other hazard related device or system, and AKM assumes no responsibility relating to any such use, except with the express written consent of the Representative Director of AKM. As used here: (a) A hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. (b) A critical component is one whose failure to function or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability. • It is the responsibility of the buyer or distributor of an AKM product who distributes, disposes of, or otherwise places the product with a third party to notify that party in advance of the above content and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and hold AKM harmless from any and all claims arising from the use of said product in the absence of such notification. M0049-E-03 2000/4 - 20 -