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ROHM BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU TECHNICAL NOTE

Summary

This ultra-compact wafer-level video driver is engineered for high-density electronics in portable devices such as mobile phones, digital still cameras, and media players. The module features a built-in charge pump circuit that eliminates the need for bulky external capacitors and maintains an extremely low standby current (0 μA). This manual provides comprehensive technical specifications on various gain options, detailed electrical characteristics, noise ratio performance, and optimal operating guidelines for system design engineers building compact, high-performance video imaging solutions.

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TECHNICAL NOTE

Compact Video Driver Series for DSCs and Portable Devices

ESD Ultra-compact Waferlevel Resistance

Chip Size Packeage Now available Single Output Video Drivers BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

Description Due to a built-in charge pump circuit, this video driver does not require the large capacity tantalum capacitor at the video output pin that is essential in conventional video drivers. Features such as a built-in LPF that has bands suited to mobile equipment, current consumption of 0 μA at standby, and low voltage operation from as low as 2.5 V make it optimal for digital still cameras, mobile phones, and other equipment in which high density mounting is demanded.

Features 1) WLCSP ultra-compact package (1.6 mm x 1.6 mm x 0.75 mm) 2) Improved noise characteristics over BH768xx FVM series 3) Four video driver amplifier gains in lineup: 6 d B, 9 d B, 12 d B, 16.5 d B 4) Large output video driver of maximum output voltage 5.2 Vpp. Ample operation margin for supporting even low voltage operation 5) Output coupling capacitor not needed, contributing to compact design 6) Built-in standby function and circuit current of 0 μA (typ) at standby 7) Clear image playback made possible by built-in 8th-order 4.5 MHz LPF 8) Due to use of bias input format, supports not only video signals but also chroma signals and RGB signals 9) Due to built-in output pin shunt switch, video output pin can be used as video input pin (BH76706GU)

Application Mobile phone, digital still camera, digital video camera, hand-held game, portable media player

Lineup

Recommended

Product Name Video Driver Amplifier Gain Video Output Pin Shunt Function

Input Level

BH76906GU 6d B 1Vpp BH76909GU 9d B 0.7Vpp BH76912GU 12d B 0.5Vpp BH76916GU 16.5d B 0.3Vpp BH76706GU 6d B 1Vpp

Absolute Maximum Ratings (Ta = 25 °C)

Parameter Symbol Rating Unit

Supply voltage Vcc 3.55 V

Power dissipation Pd 580 m W

Operating temperature range Topr -40 +85

Storage temperature range Tstg -55 +125

When mounted on a 50 mm 58 mm 1.6 mm glass epoxy board, reduce by 5.8m W/°C above Ta=+25°C.

Nov.2006

Page Summary Contents For ROHM BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU TECHNICAL NOTE

Page 1 TECHNICAL NOTE Compact Video Driver Series for DSCs and Portable Devices ESD Ultra-compact Waferlevel Resistance Chip Size Packeage Now available Single Output Video Drivers BH76906GU, BH76909GU, BH76...
Page 2 Operating Range Parameter Symbol Min. Typ. Max. Unit Supply voltage Vcc 2.5 3.0 3.45 V Electrical Characteristics [Unless otherwise specified, Ta = 25 °C, VCC = 3V] Typical Values Parameter Symbol Uni...
Page 3 Test Circuit Diagram (a) BH76906/09/12/16GU (b) BH76706GU Fig. 1 A test circuit is a circuit for shipment inspection and differs from an application circuit example. Block Diagram (a) BH76906/09/12/16...
Page 4 Pin Descriptions Pin DC Ball Pin Internal Equivalent Circuit Diagram Functional Description Name Voltage Flying capacitor “+” pin A1 C_PLUS C_PLUS See functional descriptions of 7pin, A2 VCC VCC VCC p...
Page 5 Flying capacitor “-“ pin (8pin) C1 NVCC -VCC C_MINUS (-2.75 V) B1 C_MINUS -VCC NVC Negative voltage pin (7pin) Note 1) DC voltages in the figure are those when VCC 3.0 V. Moreover, these values are re...
Page 6 Vcc +3V Vcc +3V Charge current Charge current SW2SW1 -Vcc occurs SW1 SW2 Anchor Charge current Anchor Capacitor Capacitor Flying capacitor Flying capacitor 0k Vcc +3V Charge shifting mode Charging -Vc...
Page 7 Sag is determined by input capacitor and input resistor only. Input capacitor and input impedance cutoff frequency is the same as when output capacitor in generic 75 driver is made 1000 μF. (Input pin...
Page 8 Application Circuit Example At playback (Active mode) Recording (Input mode) BH76706GU only Video monitor SW1 and SW2 are built-in BH76706GU only See page 3/16 for STBY pin logic in each mode Fig.11 W...
Page 9 1. Current ripple due to charge pump circuit affects power supply Vcc pin Vcc Vcc pin 2. Current ripple affects DAC or other 1u F VIN VOUT VIDEO AMP Chrarge Pump Fig.12 Effects of Charge Pump Circuit ...
Page 10 Evaluation Board Pattern Diagram (Double-sided, 2 layers) Layer 1 wiring + Silkscreen legend Layer 2 wiring Solder pattern Fig.15 Parts List Symbol Function Recommended Value Remarks C1 Flying capacit...
Page 11 LT IN [d B] FF [m TA [u Reference Data IR IT [m Ta=25 BH76906GU VCC=3V BH76906GU Ta=25 BH76906GU TEMPERATURE [ POWER SUPPLY VOLTAGE [V] POWER SUPPLY VOLTAGE [V] Fig. 16 Circuit Current vs Supply Volta...
Page 12 TP LT AG [V pp FR 4: f4 [d FR 2: f2 [d FR 1: f1 [d Ta=25 BH76906GU BH76906GU VCC=3V Ta=25 BH76906GU f=4.5MHz/100k Hz f=4.5MHz/100k Hz f=8MHz/100k Hz POWER SUPPLY VOLTAGE TEMPARATURE [ POWER SUPPLY VOL...
Page 13 BH76906GU BH76906GU VCC=3V IF FE TI SE [D eg TP LT [V [K z] Ta=25 IF FE TI AI POWER SUPPLY VOLTAGE [V] TEMPERATURE [ Fig. 39 Charge Pump Oscillation Frequency Fig. 40 Charge Pump Oscillation Frequency...
Page 14 BH76906GU BH76906GU Ta=25 VCC=3V IN IM [k /N (P ) [ d B /N (A ) [ d B /N [d POWER SUPPLY VOLTAGE [V] TEMPERATURE [ Fig. 47 Y S/N vs Supply Voltage Fig.48 Y S/N vs Ambient Temperature Ta=25 BH76906GU B...
Page 15 VCC=3V Ta=25 BH76706GU BH76906GU VCC=3V Ta=25 IR IT [m IS TA CTL TERMINAL VOLTAGE [V] CTL TERMINAL VOLTAGE [V] Fig. 56 Control Pin Characteristic Fig. 55 Control Pin Characteristic BH76706GU Ta=25 BH7...
Page 16 Selection of order type Tape and Reel information Part. No. BH76906GU BH76909GU BH76912GU BH76916GU BH76706GU VCSP85H1 Tape Embossed carrier tape Quantit 3000pcs Direction E2 (The direction is the 1pi...
Page 17 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject...

Manual Details

Brand ROHM
Pages 17
File Size 883.45 KB
Published May 27, 2026
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Frequently Asked Questions

What is the expected power draw when the device is in standby mode?

The circuit current in standby mode is typically 0 μA.

Does the driver require an external output coupling capacitor to function?

No, the absence of a required output coupling capacitor contributes to a compact design.

Is this video driver capable of handling signals beyond standard video?

Yes, due to its bias input format, it supports not only video signals but also chroma and RGB signals.

What safety precautions must be taken when using the product in high-reliability applications?

Users should consult a sales representative for equipment that requires extremely high reliability, such as medical instruments or transportation machinery.