BA7630F

Multimedia ICs Video switch for CANAL-Plus decoder BA7630S / BA7630F The BA7630S and BA7630F are decoder switching ICs for the scrambled broadcasts in France. The ICs include a 3input multiplexer, 2-input multiplexers with 6dB amplifiers, and a 9-bit serial-to-parallel converter. These ICs greatly simplify decoder switching, and can be connected to a control microprocessor using just two lines. Applications Video cassette recorders Features 1) All the switching functions required for SECAM CANAL plus decoder integrated onto one chip. 2) Built-in 9-bit serial-to-parallel converter for decoder and TV control reduces number of microprocessor wiring connections required. 3) Inputs have a sync-tip clamp. 4) The switch section can be used independently. 5) Low power consumption off a 5V supply. Absolute maximum ratings (Ta = 25°C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg BA7630S BA7630F Limits 9∗1 500∗2 600∗3 Unit V mW °C °C – 25 ~ + 70 – 55 ~ + 125 ∗1 13V for switches 1 to 9. ∗2 Reduced by 5.0mW for each increase in Ta of 1°C over 25°C. ∗3 Reduced by 6.0mW for each increase in Ta of 1°C over 25°C. Recommended operating conditions (Ta = 25°C) Parameter Power supply voltage Symbol VCC Min. 4.5 Typ. 5.0 Max. 5.5 Unit V 1 Multimedia ICs BA7630S / BA7630F Block diagram 22 21 20 19 18 17 16 15 14 13 12 BA7630S BUFF SW4 CONTROL LOGIC SW12 SW12 SHIFT REGISTER BIAS SW2 LOGIC SW1 6dB AMP BUFF LATC...