This document describes the features and characteristics of a wide bandwidth audio-video switch product named BH7645KS2, including video inputs selector, component inputs, built-in LPF selector, built-in video mute function, audio inputs selector, built-in power-on mute function, I2C-BUS control, etc.
The BH7645KS2 is a silicon monolithic integrated circuit designed for wide‑bandwidth audio‑video switching in TV and other AV equipment. It offers selectable video inputs, built‑in low‑pass filters, mute functions, and PC‑BUS control.
The document lists absolute maximum ratings, supply voltage ranges, power dissipation, operating temperature limits, and detailed pin‑out information, together with recommended PCB layout and power‑up/down sequences to ensure reliable operation.
| Power dissipation | 1300 µW |
|---|---|
| Video input selector | 2‑inputs component, 2‑inputs Y/C, 2‑inputs composite |
The absolute maximum rating for VCC1 is +55 V.