1
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 3-
input 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 Symbol Limits Unit
VCC 9
* 1
V
BA7630S 500
* 2
mW
BA7630F 600
* 3
Topr – 25 ~ + 70 °C
Tstg – 55 ~ + 125 °C
Pd
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
*
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 Symbol Min. Typ. Max. Unit
VCC 4.5 5.0 5.5 VPower supply voltage