CXA1812 View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA1812

S-terminal Compatible Video I/O

Sony Semiconductor 

CXA1812Q

Pin Description

Pin

Symbol

No.

Pin

voltage

1 COUTGND 0 V∗

2

VREG

4V

3 COUT2 2.2 V

Equivalent circuit

∗Externally applied voltage

Description

—

Chroma 75 Ω driver GND.

—

60µ

4 V internal regular output.

Connect a decoupling capacitor.

Do not use for external bias.

VCC Chroma signal output used for

generating a composite video signal.

3

120µ 150µ

GND

143mVp-p

314mVp-p

20µ

4 CMUTE

0V

4

150

VCC Control input used for muting both the

chroma signals that are input to Pins 27

(CIN1) and 29 (CIN2) and pass through

the EE path, as well as the chroma

signal that is input from Pin 7 (CIN).

Low (0 to 0.8 V) : normal operation

GND High (2 V to VCC) : mute

VCC Chroma 75 Ω driver output.

660µ

5

COUT

2.2 V

16k

2.2V

660µ 1.2m

5

GND

572mVp-p

1.256Vp-p

6

SEL2

0V

6

150

VCC Control input used for switching

20µ

between the signals input to Pins 27

and 29 and the signal input to Pin 7.

Low (0 to 0.8 V) :

signal at Pin 7 is selected

High (2 V to VCC) :

GND

signals at Pins 27 and 29 are selected

—3—

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