BA7631F

Multimedia ICs Video switch for CANAL-Plus decoder BA7631 / BA7631F The BA7631 and 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. Applications Video cassette recorders Features 1) All the audio-switching functions required for SECAM CANAL -plus decoder integrated onto one chip. 2) Inputs terminated with 65kΩ resistors. 3) Built-in output buffer. 4) Wide supply voltage range (4.5V to 13.0V). 5) Low total harmonic distortion (0.005% Typ.). 6) Wide dynamic range (3.6Vrms, VCC = 12V). 7) Same control logic as for the BA7630S can be used. Absolute maximum ratings Parameter Applied voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 13.5 1100∗ (DIP) 500∗ (SOP) – 25 ~ + 70 – 55 ~ + 125 Unit V mV °C °C ∗ Reduced by 11mW (DIP) or 5mW (SOP) for each increase in Ta of 1°C over 25°C. Recommended operating conditions (Ta = 25°C) Parameter Power supply voltage Symbol VCC Limits 4.5 ~ 13.0 Unit V 1 Multimedia ICs BA7631 / BA7631F Block diagram OUT1 1 BF BF 16 OUT2 CTL4 2 1 2 3 15 CTL5 IN5 3 4 SW2 14 CTL3 VCC 4 1 2 BF 13 OUT3 IN4 5 3 SW1 4 5 12 CTL2 GND2 6 11 IN3 IN1 7 1 2 SW3 10 GN...