1

Multimedia ICs

Video signal swither, 1

× 3-channel

with clamped-input

BA7652AF

The BA7652AF is a video-signal switching IC that contains a three-channel clamped-input multiplexer and a built-in

mute circuit. The inputs are sync-tip clamped (synchronous edge of the video input signals are aligned to the same

voltage), and as the input impedance is extremely large, it is possible to use a small value for the clamp capacitor.

[The recommended capacitor is 0.01

µF (FZ) ceramic].

Video cassette recorders and camcorders

1) Small clamp capacitors can be used (ceramic,

3000pF (Min.), 0.01

µF (FZ) (recommended)).

2) Low supply voltage operation possible. Supply volt-

age range is 3.7V to 7.7V.

3) Superimposition used for fast switching speed with

low switching noise (70ns. Typ.).

4) Low power consumption

6) Mute function.

7) Excellent frequency characteristics

(10MHz, 0dB Typ.).

8) Low interchannel crosstalk ( – 70dB Typ.).

9) Voltage can be applied to the control pins even

Parameter

Symbol

Limits

Unit

9V

mW

°C

°C

Pd

Topr

Tstg

– 25 ~ + 75

– 55 ~ + 125

Applied voltage

Power dissipation

Operating temperature

Storage temperature

Parameter

Symbol

Limits

Unit

4.0 ~ 7.0

V

Recommended operating voltage