LA7955(1999) Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
componentes Descripción
Fabricante
LA7955 Datasheet PDF : 6 Pages
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4. Video Output Circuit
The video output is emitter follower output.
LA7955
5. Audio output circuit
The audio output is emitter follower output.
6. Video switch operation
SW (A) is switched by the voltage of switching control input signal 1 (Pin 4), and SW (B), by the voltage of
Switching control input signal 2 (Pin 8). In addition, there are amplifiers (with 75 Ω terminating output pins) with a
gain of 6 dB at the pre-output stages of Pins 5 and 9. However, an external buffer is required when shorted with a 75
Ω resistor.
7. Audio switch operation
SW (A) is switched by the voltage of switching control input signal 1 (Pin 4), and SW (B), by the voltage of switching
control input signal 2 (Pin 8). Setting the must input voltage (Pin 10) to H turns the muting switch ON and cutting
output 2.
Two pairs of audio switches are built in, allowing use in equipment designs for multiplex broadcast systems.
No. 2740-5/6
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