BA7631 / BA7631F are audio-switching ICs for decoders for scrambled pay channels used in France and other countries. The ICs include a five-input multiplexer, a four-input multiplexer and a two-input multiplexer, and allow decoder audio switching to be done with a single IC. When used in combination with the BA7630S common logic control can be used for audio and video switching.
The BA7631 and BA7631F are audio‑switching ICs designed for CANAL‑Plus pay‑channel decoders. They integrate five‑input, four‑input and two‑input multiplexers, allowing complete audio switching on a single chip and are suitable for video cassette recorders and similar equipment.
Key features include a wide supply voltage range (4.5 V – 13 V), low total harmonic distortion (0.005 % typ.), built‑in output buffers, and compatibility with the BA7630S control logic. The document lists absolute maximum ratings, recommended operating conditions, pin functions, electrical characteristics, and mechanical dimensions.
| Supply voltage range | 4.5 V – 13.0 V |
|---|---|
| Total harmonic distortion (THD) | 0.005 % typ. |
| Dynamic range | 3.6 Vrms (VCC = 12 V) |
| Maximum output level | 3.6 Vrms (VCC = 12 V) |
The BA7631 operates from 4.5 V up to 13.0 V.
Typical THD is 0.005 % at a 1 kHz input.
It includes a five‑input, a four‑input, and a two‑input multiplexer.
Yes, the same control logic as the BA7630S can be used with the BA7631.