CXA2069Q 데이터 시트보기 (PDF) - Sony Semiconductor

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CXA2069Q

S2-Compatible 7-Input 3-Output Audio/Video Switch

Sony Semiconductor 

CXA2069Q

2) Control Registers

The CXA2069Q control is exercised by writing 3-byte data into the three 8-bit control registers which

control the output selector circuits for the 3 outputs.

S Slave address A

DATA1

A

DATA2

A

DATA3

AP

S ; Start condition

A ; Acknowledge

P ; Stop condition

O Control register structure (DATA1 to DATA3)

• All registers are set to “0” during IC power on.

• “∗” indicates undefined.

b7

b6

b5

b4

b3

Slave add.

1

0

0

1

0

DATA1 A-GAIN S/COMP1

V-IN1

DATA2 V/YOUT S/COMP2

V-IN2

DATA3

∗ S/COMP3

AV-IN3

b2

b1

b0

0

ADR

R/W

A-IN1

A-IN2

DC OUT

∗

R/W (1) : Read/write mode

0 : Control data write

1 : Status register read

ADR (1) : This bit sets the slave address set by the address pin.

0 : 90H

1 : 92H

A-GAIN (1) : LOUT1/ROUT1 output gain selector

0 : 0 dB output

1 : –6 dB output

S/COMP1 to S/COMP3 (1 each) : S terminal input/composite signal input selectors

By setting S/COMP1 to “0”, when composite signal input is selected, YOUT1/COUT1 output the

inputs from YIN1/CIN1 during video 1 output.

0 : Composite signal inputs (TV, V1 to V6 inputs)

1 : S terminal inputs (Y1/C1 to Y4/C4 inputs)

V/YOUT (1) : This bit selects the output to Pin 44 (V/YOUT2).

0 : VOUT (composite signal) output

1 : YOUT (luminance signal) output

V-IN1 to V-IN2 (3 each) : These bits select the input signals output to each video output.

V-IN1 corresponds to the VOUT1 and YOUT1/COUT1 outputs, and V-IN2 to the VOUT2 and

YOUT2/COUT2 outputs.

0 : Mute

4 : Selects the V3 and Y3/C3 inputs

1 : Selects the TV input

5 : Selects the V4 and Y4/C4 inputs

2 : Selects the V1 and Y1/C1 inputs

6 : Selects the V5 input

3 : Selects the V2 and Y2/C2 inputs

7 : Selects the V6 input

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