BH76812FVM-TR

Composite Video Amplifier Output Capacitor-less Video Drivers No.14064EBT02 BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM ●Description The BH768xxFVM series video drivers are the optimum solution for high density integration systems such as, digital still cameras, mobile phones, and portable video devices. A built-in charge pump circuit eliminates the need for a large output coupling capacitor. Features include: a built-in LPF, low-voltage (2.5 V) operation, and 0 µA current consumption during standby mode. ●Features 1) Select from four video driver amp gain settings: 6 dB, 9 dB, 12 dB, and 16.5 dB 2) Large-output video driver with maximum output voltage of 5.2 VP-P Supports wide and low-voltage operation range. 3) No output coupling capacitor is needed, which makes for a more compact design 4) Built-in standby function sets circuit current to 0 µA (typ.) during standby mode 5) Clear image reproduction by on-chip 8-order 4.5-MHz LPF (Low Pass Filter) 6) Bias input method is used to support chroma, video, and RGB signals. 7) MSOP8 compact package ●Applications Mobile telephones, DSCs (digital still cameras), DVCs (digital video cameras), portable game systems, portable media players, etc. ●Line up matrix Part No. Video driver amp gain Recommended input level BH76806FVM 6dB 1 VP-P BH76809FVM 9dB 0.7 VP-P BH76812FVM 12dB 0.5 VP-P BH76816FVM 16.5dB 0.3 VP-P ●Absolute maximum ratings （Ta=25℃） Parameter Symbol Ratings Unit VCC 3.55 V Pd 0.47 W Operating temperature range Topr -40 to +85 ℃ Storage temperature range Tstg -55 to +125 ℃ Supply voltage Power dissipation ＊ Reduce by 4.7 mW/C over 25C, when mounted on a 70mm×70mm×1.6mm PCB board. www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 1/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM ●Operating range (Ta=25℃) Parameter Symbol Min. TYP. Max. Unit Supply voltage VCC 2.5 3.0 3.45 V ●Electrical characteristics (Unless otherwise noted, Typ.: Ta=25℃, VCC=3V) Typical value Parameter Symbol Circuit current 1 ICC1 Circuit current 2 ICC2 Standby SW input current High-Level BH76806 FVM BH76809 FVM BH76812 FVM 16 BH76816 FVM Conditions mA No signal 0.0 μA Standby mode IthH 45 μA When 3.0 V is applied to 4pin Standby switching voltage High-Level VthH (min.) 1.2 V standby OFF Standby Switching voltage Low-Level VthL (max.) 0.45 V standby ON Video driver amp gain GV dB Vo=100kHz, 1.0VP-P Maximum output level Vomv 5.2 VP-P f=1kHz,THD=1% Frequency characteristic 1 Gf1 -0.45 dB f=4.5MHz/100kHz Frequency characteristic 2 Gf2 -3.0 dB f=8.0MHz/100kHz Frequency characteristic 3 Gf3 -32 dB f=18MHz/100kHz Frequency characteristic 4 Gf4 -51 dB f=23.5MHz/100kHz Differential Gain DG 0.5 % Vo =1.0VP-P Standard stair step signal Differential Phase DP 1.0 deg Vo =1.0VP-P Standard stair step signal 6.0 15 Unit 9.0 12.0 16.5 Band = 100k to 6MHz 75 Ω termination 100% chroma video signal Band = 100 to 500kHz 75Ωtermination 100%chroma video signal Band = 100 to 500kHz 75Ωtermination 100%chroma video signal Y signal output S/N SNY +74 +73 +70 +70 dB C signal output S/N (AM) SNCA +77 +76 +75 +75 dB C signal output S/N (PM) SNCP +65 dB Output pin source current lextin 30 mA 4.5 V applied via 150 Ω to output pin Output DC offset voltage Voff (max.) ±50 mV 75 Ω termination www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 2/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM ●Measurement circuit 1µ 1 8 IN 1 V2 (VCC) A SW2 OUT CHARGE PUMP 2 7 2 10µ GND 0.1µ 3 V 6dB/9dB/12dB/16.5dB LPF 6 + 0.1µ OSC1 1µ NVCC 150k 50 - 4.7µ 4 V4 75 5 V ※ 75 Test circuit is intended for shipment inspections, and differs from application circuit. Fig. 1 ●Control pin settings Parameter Standby control States Note STBY(4pin)=H STBY:OFF STBY(4pin)=L STBY:ON STBY(4pin)=OPEN STBY:ON ●Block diagram C1 1 8 C2 IN CHARGE PUMP OUT VCC 2 7 NVCC NVCC GND VIN 3 LPF 6dB/9dB/12dB/16.5dB + 6 GND 150k - STBY 4 5 VOUT Fig. 2 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 3/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM ●Pin descriptions Pin No. Pin name DC voltage equivalent circuit Functions Flying capacitor "+" pin 1 C1 +VCC ↑↓ 0V See function description for pins 7 and 8 2 VCC VCC VCC Pin Video signal input pin VIN 3 VIN 1µF 0V 150k Adaptive input signal Composite video signal/ chroma signal/RGB signal, etc. 4 VCC to 0V STBY STANBY control Pin Terminal MODE Voltage 1.2V to VCC STBY:OFF (H) 0V to 0.45V STBY:ON (L) Video signal output pin 5 VOUT 0V VOUT 75Ω 6 ＊1 ＊2 GND 0V 75Ω GND Pin The DC voltage in the figure is VCC = 3.0 V. These values are for reference only and are not guaranteed. These values are for reference only and are not guaranteed. www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 4/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM ●Pin descriptions Flying capacitor “-”pin (8pin) 7 VCC C1 -VCC (-2.75V) NVCC 0V C2 8 0V ↑↓ -VCC (-2.75V) C2 NVCC NVCC Load voltage pins (7 pins) ＊1 ＊2 The DC voltage in the figure is VCC = 3.0 V. These values are for reference only and are not guaranteed. These values are for reference only and are not guaranteed. ●Description of operations 1) Principles of video driver with no output coupling capacitor Amp (Single power supply) VCC Amp (Dual power supply) Output capacitor is required due to DC VCC voltage at output pin DC voltage is not applied to output pin 75Ω 1000µF Output capacitor is not required since 75Ω 75Ω 75Ω -VCC 1/2VCC Bias Fig.3 Fig.4 When the amplifier operates using single voltage power supply, the operating potential point is approximately 1/2 Vcc. Therefore, a coupling capacitor is required to prevent DC output. For the video driver, the load resistance is 150 Ω (75 Ω + 75 Ω). Therefore, the coupling capacitor should be about 1000 µF when a low bandwidth for transmission is considered. (See Figure 3.) When the amplifier operates using a dual (±) power supply, the operating point can be set at GND level, and therefore, there is no need for a coupling capacitor to prevent DC output. Since a coupling capacitor is not needed, there is no sagging of low-frequency characteristics in output stage. (See Figure 4.) 2) Generation of negative voltage by charge pump circuit As is shown in Figure 5, the charge pump consists of a pair of switches (SW1 and SW2) and a pair of capacitors (flying capacitor and load capacitor), generating a negative voltage. When +3 V is applied to this IC, approximately -2.83 V of negative voltage is obtained. www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 5/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM Vcc +3V Vcc +3V charge current charge current SW1 SW2 -Vcc is generated SW1 SW2 Flying capacitor charge current Load capacitor Load capacitor Flying capacitor charge transfer mode Vcc +3V charge current -Vcc is generated Fig. 5 1) Principles of Charge Pump Circuit Configuration of BH768xxFVM Series As is shown in Figure 6, in the BH768xxFVM Series, a dual power supply amplifier is integrated with a charge pump circuit in the same IC. This enables operation using a +3V single power supply while also using a dual power supply amplifier, which eliminates the need for an output coupling capacitor. Vcc 3.3uF 1µF VIDEO AMP LPF 75Ω 75Ω CHARGE PUMP 1µF 1µF Fig. 6 BH768xxFVM Configuration Diagram 2) Input terminal type and sag characteristics BH768xxFVM Series devices provide both a low-voltage video driver and a large dynamic range (approximately 5.2 VP-P). A resistance termination method (150 kΩ termination) is used instead of the clamp method, which only supports video signals, since it supports various signal types. The BH768xxFVM series supports a wide range of devices such as, video signals, chroma signals, and RGB signals that can operate normally even without a synchronization signal. In addition, input terminating resistance (150 kΩ) can use a small input capacitor without reducing the sag low-band It is recommended to use a H-bar signal when evaluating sag characteristics, since it makes sag more noticeable. (See Figures 7 to 10.) www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 6/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM Sag is determined by input capacitor and input resistance only. Cut-off frequency for input capacitor and input impedance is the same as when the output capacitor is set at 1000 µF with an ordinary 75 Ω driver. 1 μF X 150 KΩ = 1000 μF X 150 Ω (Input terminal time constant) (Output terminal time constant) 1µF 150k Sag Fig. 7 a) Sag-free TV Test Signal Generator Output(Sibasoku TG-7/1 , H-bar) H-bar signal's TV screen output image Fig. 8 b) BH768xxFVM output (input = 1.0 µF, output, H-bar) VCC TG-7/1 150k 1μF Monitor 75Ω 75Ω -VCC BH768xxFVM Fig. 9 Nearly identical sag characteristics c) 1000 µF + 150 Ω sag waveform (TV Test Signal Generator Sibasoku TG-7/1 output, H-bar) Monitor 75Ω 1000μF 75Ω TG-7/1 Fig. 10 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 7/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM ●Application circuit 1.0µF (C18) 1 8 IN ※ 10Ω(R2) OUT CHARGE PUMP 2 7 3.3µF (C2) VIDEO IN 3 1.0µF(C3) 1.0µF(C7) NVCC GND 6dB/9dB/12dB/16.5dB LPF 6 + 150k - 75Ω(R5) 4 5 Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to verify circuit characteristics for your particular application. Fig. 11 ※ A large current transition occurs in the power supply pin when the charge pump circuit is switched. If this affects other ICs (via the power supply line), insert a resistor (approximately 10 Ω) in the VCC line to improve the power supply's ripple effects. Although inserting a 10 Ω resistor lowers the voltage by about 0.2 V, this IC has a wide margin for low-voltage operation, so dynamic range problems or other problems should not occur. ●The effect of the resister inserted in the VCC line Vcc 1.Effects of charge pump circuit’s current ripple Vcc端子 3.3µF 2.Current ripple affects DAC, etc. 1µF 1µF DAC etc VIDEO AMP LPF 75Ω 75Ω CHARGE PUMP 1µF 1µF Fig. 12 Effect of Charge Pump Circuit's Current Ripple on External Circuit www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 8/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM 1) Decoupling capacitor only Current waveform (A) between single power supply and C2 10mA/div Vcc Current waveform (B) between C2 and IC 10mA/div A C2 A (B) VCC Fig.13 2) Decoupling capacitor + Resistance 10Ω (A) Current waveform (A) between single power supply and R2 10mA/div Current waveform (B) between R2 and C2 10mA/div Current waveform (C) between single power supply and C2 10mA/div Vcc 10Ω C2 (B) A A A R2 (A) (C) Fig.14 VCC www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 9/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM ●Pattern diagram of evaluation board SW STBY ACT GND VIN R2 GND R3 VOUT R1 C4 C3 C2 CN1 CN2 VCC C1 GND GND GND GND GND ROHM ●List of external components Symbol BH76806/09/12/16FVM Fig. 15 Function Recommended value Remark C1 Flying capacitor 1μF B characteristics are recommended C2 Tank capacitor 1μF B characteristics are recommended C3 Input coupling capacitor 1μF B characteristics are recommended C4 Decoupling capacitor 3.3μF B characteristics are recommended R1 Output resistor 75Ω R2 Output terminating resistance 75Ω R3 Input terminating resistance 75Ω CN1 Input connector BNC CN2 Output connector RCA (pin jack) SW STBY control SW www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 10/16 － Not required when connecting to TV or video signal test equipment. Required when connecting to video signal test equipment. 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM ●Reference data BH76812FVM Ta=25℃ BH76812FVM 25 20 15 10 5 0.8 0.6 0.4 0.2 0 0 1 2 3 0 2.5 4 POWER SUPPLY VOLTAGE [V] BH76812FVM VCC=3V 20 1 18 0.8 STANDBY CURRENT [μA] CIRCUIT CURRENT [mA] BH76812FVM 16 14 12 10 -50 0 50 0.4 0.2 0 50 TEMPERATURE [℃] Ta=25℃ BH76812FVM 25 25 VOUT DC OFFSET [mV] 50 0 -25 3.5 -25 0 50 TEMPERATURE [℃] BH76812FVM VCC=3V 100 Fig. 21 VOUT DC offset voltage vs. Temperature Fig. 20 VOUT DC offset voltage vs. Supply voltage BH76812FVM VCC=3V 0 -50 -50 -50 5 100 Fig. 19 Circuit Current (Standby) vs. Temperature 50 2.7 2.9 3.1 3.3 POWER SUPPLY VOLTAGE [V] VCC=3V 0.6 -50 Fig. 18 Circuit current vs. Temperature 2.5 3.5 0 100 TEMPERATURE [℃] BH76812FVM 2.7 2.9 3.1 3.3 POWER SUPPLY VOLTAGE [V] Fig. 17 Circuit Current (Standby) vs. Supply Voltage Fig. 16 Circuit current vs. Supply voltage VOUT DC OFFSET [mV] Ta=25℃ 1 STANDBY CURRENT [μA] CIRCUIT CURRENT [mA] 30 Ta=25℃ Ta=25℃ 12.5 12.4 -5 VOLTAGE GAIN [dB] VOLTAGE GAIN [dB] 12.3 -15 -25 -35 -45 -55 12.2 12.1 12 11.9 11.8 11.7 -65 11.6 -75 0.1 10 1 FREQUENCY [MHz] 11.5 2.5 100 Fig. 22 Frequency characteristic www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 2.7 2.9 3.1 3.3 POWER SUPPLY VOLTAGE [V] 3.5 Fig. 23 Voltage gain vs. Supply voltage 11/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM BH76812FVM BH76812FVM VCC=3V 12.5 FREQENCY RESPONSE1:Gf1[dB] 12.4 VOLTAGE GAIN [dB] 12.3 12.2 12.1 12 11.9 11.8 11.7 11.6 11.5 -50 0 50 0.8 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 100 2.5 VCC=3V 3.1 3.3 3.5 BH76812FVM Ta=25℃ 0 f=4. 5MHz/100kHz f=8MHz/100kHz FREQUENCY RESPONSE2:Gf2[dB] 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 -50 0 50 -1 -2 -3 -4 -5 -6 100 2.5 TEMPERATURE[℃] FREQUENCY RESPONSE4:Gf4[dB] f=8MHz/100kHz -1 -2 -3 -4 -5 3.3 3.5 f=23.5MHz/100kHz -45 -50 -55 -60 -65 -70 2.5 0 50 TEMPERATURE [℃] Ta=25℃ -40 -6 2.7 2.9 3.1 3.3 3.5 POWER SUPPLY VOLTAGE:Vcc[V] 100 Fig. 28 Frequency response 2 vs. Temperature BH76812FVM 3.1 BH76812FVM 0 -50 2.9 Fig. 27 Frequency response 2 vs. Supply voltage VCC=3V BH76812FVM 2.7 POWER SUPPLY VOLTAGE: Vcc [V] Fig. 26 Frequency response 1 vs. Temperature FREQUENCY RESPONSE2:Gf2[dB] 2.9 Fig. 25 Frequency response 1 vs. Supply voltage 1 FREQUENCY RESPONSE1:Gf1[dB] 2.7 POWER SUPPLY VOLTAGE:Vcc[V] Fig. 24 Voltage gain vs. Temperature BH76812FVM f=4. 5MHz/100kHz 0.6 TEMPERATURE [℃] Fig.29 Frequency response 4 vs. Supply voltage BH76812FVM VCC=3V 7 -40 f=23.5MHz/100kHz MAX OUTPUT VOLTAGE [VP-P] FREQUENCY RESPONSE4:Gf4[dB] Ta=25℃ 1 -45 -50 -55 -60 -65 Ta=25℃ 6 5 4 3 2 1 0 -70 TEMPERATURE[℃ [Deg] TEMPERATURE ] 2.7 2.9 3.1 3.3 POWER SUPPLY VOLTAGE [V] Fig. 30 Frequency response 4 vs. Temperature Fig. 31 Maximum output voltage level vs. Supply voltage -50 0 50 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 2.5 100 12/16 3.5 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM BH76812FVM VCC=3V 5.8 5.6 5.4 5.2 5 4.8 4.6 4.4 2 1 6dB 9dB 12dB 16.5dB 0 -1 -2 -3 -1.5 4 0 50 100 TEMPERATURE[V] Fig. 32 Maximum output level vs. Temperature 260 220 180 140 2.7 2.9 3.1 3.3 3.5 260 220 180 140 100 -50 BH76812FVM Ta=25℃ 0.0 -0.5 -1.0 -1.5 -2.0 -2.5 -3.0 -3.5 -4.0 -1.5 -2 -2.5 -3 0 BH76812FVM 2.5 2.5 DIFFERENTIAL PHASE [Deg] 3 2 1.5 1 0.5 40 VCC=3V 2 1.5 1 0.5 0 -50 3.5 0 50 TEMPERATURE [℃] 100 Fig. 39 Differential phase vs. Temperature Fig. 38 Differential phase vs. Supply voltage www.rohm.com 10 20 30 LOAD CURRENT [mA] Fig. 37 Charge pump load regulation Ta=25℃ © 2009 ROHM Co., Ltd. All rights reserved. VCC=3V Ta=25℃ -1 3 2.7 2.9 3.1 3.3 POWER SUPPLY VOLTAGE [V] 100 -0.5 4.0 Fig. 36 Charge pump output voltage vs. Supply voltage 0 2.5 50 0 CHARGEPUMP OUTPUT VOLTAGE [V] 0.5 BH76812FVM 0 Fig. 35 Charge pump oscillation frequency vs. Temperature 1.0 1.0 2.0 3.0 POWER SUPPLY VOLTAGE [V] VCC=3V TEMPERATURE [℃] Fig. 34 Charge pump oscillation frequency vs. Supply voltage 0.0 1.5 300 POWER SUPPLY VOLTAGE [V] BH76812FVM -0.5 0.0 0.5 1.0 INPUT DC VOLTAGE [V] BH76812FVM Ta=25℃ 300 100 2.5 -1.0 Fig. 33 Output DC voltage – Input DC voltage CHARGEPUMP OSC FREQUENCY [KHz] CHARGEPUMP OSC FREQUENCY [KHz] BH76812FVM CHARGEPUMP OUTPUT VOLTAGE [V] Ta=25℃ 4.2 -50 DIFFERENTIAL PHASE [Deg] VCC=3V 3 OUTPUT DC VOLTAGE [V] MAXIMUM OUTPUT LEVEL:Vomv[Vpp] BH76812FVM 6 13/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM Ta=25℃ BH76812FVM 3 2.5 2.5 DIFFERENTIAL GAIN [%] DIFFERENTIAL GAIN [%] BH76812FVM 3 2 1.5 1 0.5 0 2.5 2.7 2.9 3.1 3.3 POWER SUPPLY VOLTAGE [V] Fig. 40 Differential gain vs. Supply voltage 1 0.5 0 50 TEMPERATURE [℃] 100 Fig. 41 Differential gain vs. Temperature VCC=3V BH76812FVM 80 80 75 75 Y S/N [dB] Y S/N [dB] 1.5 Ta=25℃ BH76812FVM 70 65 70 65 60 2.5 2.7 2.9 3.1 3.3 POWER SUPPLY VOLTAGE [V] 60 -50 3.5 50 100 Fig.43 S/N(Y) vs. Temperature Ta=25℃ BH76812FVM 0 TEMPERATURE [℃] Fig. 42 S/N(Y) vs. Supply Voltage VCC=3V BH76812FVM 80 CHROMA S/N (AM) [dB] 80 75 CHROMA S/N (AM) [dB] 2 0 -50 3.5 VCC=3V 70 65 60 2.5 75 70 65 60 2.7 2.9 3.1 3.3 POWER SUPPLY VOLTAGE [V] 3.5 -50 Fig. 44 S/N(C-AM) vs. Supply Voltage BH76812FVM 0 50 TEMPERATURE [℃] 100 Fig. 45 S/N(C-AM) vs. Temperature Ta=25℃ BH76812FVM 70 VCC=3V 70 66 CHROMA S/N (PM) [dB] C SYSTEM PM S/N:SNcp[dB] 68 64 62 60 58 56 54 65 60 55 52 50 2.5 2.7 2.9 3.1 3.3 50 -50 3.5 POWER SUPPLY VOLTAGE: Vcc[V] Fig. 46 S/N(C-PM) vs. Supply Voltage www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 0 50 100 TEMPERATURE [℃] Fig. 47 S/N(C-PM) vs. Temperature 14/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM BH76812FVM VCC=3V Ta=25℃ CIRCUIT CURRENT [mA] 20 15 10 5 0 0.0 0.5 1.0 1.5 STBY TERMINAL VOLTAGE [V] 2.0 Fig. 48 Circuit current vs. STBY terminal voltage ●Cautions on use 1. Numbers and data in entries are representative design values and are not guaranteed values of the items. 2. Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to verify circuit characteristics for your particular application. Modification of constants for other externally connected circuits may cause variations in both static and transient characteristics for external components as well as this Rohm IC. Allow for sufficient margins when determining circuit constants. 3. Absolute maximum ratings Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr), may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at times where the absolute maximum ratings may be exceeded. 4. Thermal design Perform thermal design, in which there are adequate margins, by taking into account the permissible dissipation (Pd) in actual states of use. 5. Short circuit between terminals and erroneous mounting Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other components on the circuits, can damage the IC. 6. Operation in strong electromagnetic field Using the ICs in a strong electromagnetic field can cause operation malfunction. 7. Wiring from the decoupling capacitor C2 to the IC should be kept as short as possible. This capacitance value may have ripple effects on the IC, and may affect the S-N ratio. It is recommended to use as large a decoupling capacitor as possible. (Recommendations: 3.3 µF, B characteristics, 6.3 V or higher) 8. Target capacitor It is recommended to use a ceramic capacitor with good temperature characteristics (B). 9. The NVCC (7 pin) terminal generates a voltage that is used within the IC, so it should not be connected to a load unless necessary. This capacitor (C7) has a large capacitance value with low negative voltage ripple. 10. Capacitors C18 and C2 should be placed as close as possible to the IC. If the wire length to the capacitor is too long, it can lead to switching noise. (Recommended C18: 1.0 µF; C2: 3.3 µF, B characteristics, 6.3 V or higher maximum voltage) 11. The HPF consists of input coupling capacitor C3 and 150 kΩ of the internal input. Be sure to check for video signal sag before determining the C3 value. The cut-off frequency fc can be calculated using the following formula. fc = 1/(2π× C3 × 150 kΩ) (Recommendations: 1.0 µF, B characteristics, 6.3 V or higher maximum voltage) 12. The output resistor R5 should be placed close to the IC. 13. Improper mounting may damage the IC. 14. A large current transition occurs in the power supply pin when the charge pump circuit is switched. If this affects other ICs (via the power supply line), insert a resistor (approximately 10 Ω) in the VCC line to improve the power supply's ripple effects. Although inserting a 10 Ω resistor lowers the voltage by about 0.2 V, this IC has a wide margin for low-voltage operation, so dynamic range problems or other problems should not occur. (See Figures 12 to 14.) www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 15/16 2014.08 - Rev.B Technical Note BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM ●Selection of order type B H 7 6 8 6 0 F V T M R Tape and Reel information Part. No. BH76806FVM BH76809FVM BH76812FVM BH76816FVM MSOP8 Tape Embossed carrier tape Quantity 3000pcs Direction of feed TR The direction is the 1pin of product is at the upper right when you hold ( reel on the left hand and you pull out the tape on the right hand ) 1pin Direction of feed Reel (Unit:mm) www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 16/16 ∗ Order quantity needs to be multiple of the minimum quantity. 2014.08 - Rev.B Notice Notes 1) The information contained herein is subject to change without notice. 2) Before you use our Products, please contact our sales representative and verify the latest specifications : 3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating characteristics, implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no responsibility for any damages arising out of the use of our Poducts beyond the rating specified by ROHM. 4) Examples of application circuits, circuit constants and any other information contained herein are provided only to illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. 5) The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of such technical information. 6) The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communication, consumer systems, gaming/entertainment sets) as well as the applications indicated in this document. 7) The Products specified in this document are not designed to be radiation tolerant. 8) For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems. 9) Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power control systems, and submarine repeaters. 10) ROHM shall have no responsibility for any damages or injury arising from non-compliance with the recommended usage conditions and specifications contained herein. 11) ROHM has used reasonable care to ensur the accuracy of the information contained in this document. However, ROHM does not warrants that such information is error-free, and ROHM shall have no responsibility for any damages arising from any inaccuracy or misprint of such information. 12) Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations. 13) When providing our Products and technologies contained in this document to other countries, you must abide by the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US Export Administration Regulations and the Foreign Exchange and Foreign Trade Act. 14) This document, in part or in whole, may not be reprinted or reproduced without prior consent of ROHM. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System http://www.rohm.com/contact/ www.rohm.com © 2014 ROHM Co., Ltd. All rights reserved. R1102A