CXA2040 查看數據表（PDF） - Sony Semiconductor

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CXA2040

I2C Bus-Compatible Video Switch

Sony Semiconductor 

CXA2040Q

Pin

No.

Symbol Pin voltage

Equivalent circuit

VCC

23 CV1

4.5V

20k

147

23

28k

Description

Composite video signal input.

Biased to approximately 4.5V.

Input the input signal through

capacitor. Connect protective

resistor of 220Ω between this pin

and the capacitor.

The composite video signal input

to CV1 is also taken into the

"SYNC DETECT circuit" of which

SYNC is existed or not.

25 CV2

27 CV3

29 CV4

31 CV5

4.5V

VCC

25

20k

27

147

29

31

28k

Composite video signal input.

Biased to approximately 4.5V.

Input the input signals through

capacitors. Connect protective

resistor of 220Ω between these

pins and the capacitors.

26 VCC

30 GND

9.0V∗1

0.0V∗1

32 BIAS

4.5V

2

8

10

12

14 NC

16

18

24

28

VCC

1.2k

22.5k

32

20k

Power supply.

Apply 9.0V.

GND.

4.5V bias.

Attach a decoupling capacitor

between this pin and GND.

This pin cannot be used as an

external power supply.

–5–

NC (not connected).

Connect to GND.

If these NC pins are not connected

to GND, the cross talk and other

desired values indicated in the

Electrical Characteristics cannot

be obtained.

∗1 Applied externally.

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