Key facts
- Brand
- ROHM
- Model
- BH76912GU
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-04
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ROHM BH76906GU/BH76909GU/BH76912GU/BH76916GU/BH76706GU Technical Note
The ROHM BH76906GU, BH76909GU, BH76912GU, BH76916GU and BH76706GU are ultra‑compact, capacitor‑less video driver ICs designed for digital still cameras, mobile phones and other portable devices. They integrate a charge‑pump circuit, built‑in low‑pass filter and standby function, allowing operation from as low as 2.5 V without external coupling capacitors.
Key features include four selectable video‑driver gains (6 dB, 9 dB, 12 dB, 16.5 dB), a maximum output voltage of 5.2 Vpp, and the ability to use the output pin as an input pin on the BH76706GU variant. The note provides absolute maximum ratings, electrical characteristics, pin descriptions, test and application circuit examples, and layout cautions for reliable implementation.
ROHM BH76912GU specifications
| Supply voltage (absolute max) | 3.55 V |
|---|---|
| Power dissipation (absolute max) | 580 mW |
| Operating temperature range | -40 °C to +85 °C |
| Maximum output voltage | 5.2 Vpp |
| Video driver amplifier gains | 6 dB, 9 dB, 12 dB, 16.5 dB |
| Output pin shunt function (BH76706GU) | Output pin can be used as video input pin |
Source: ROHM BH76906GU/BH76909GU/BH76912GU/BH76916GU/BH76706GU Technical Note
All ROHM BH76912GU documents by type
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What supply voltage range can the BH769xxGU operate within?
The absolute maximum supply voltage is 3.55 V, and the typical operating range is 2.5 V to 3.45 V.
From: ROHM BH76906GU/BH76909GU/BH76912GU/BH76916GU/BH76706GU Technical Note
Do these video driver ICs require an external output coupling capacitor?
No, the built‑in charge‑pump circuit eliminates the need for an external output coupling capacitor.
From: ROHM BH76906GU/BH76909GU/BH76912GU/BH76916GU/BH76706GU Technical Note
What advantage does the built‑in charge pump provide?
It removes the need for a large‑capacity tantalum capacitor at the video output pin, allowing a more compact design.
From: ROHM BH76906GU/BH76909GU/BH76912GU/BH76916GU/BH76706GU Technical Note
Which model allows the video output pin to be used as an input pin?
The BH76706GU model supports using the video output pin as a video input pin.
From: ROHM BH76906GU/BH76909GU/BH76912GU/BH76916GU/BH76706GU Technical Note