CXA2089 データシートの表示（PDF） - Sony Semiconductor

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CXA2089

S2-Compatible 5-Input 2-Output Audio/Video Switch

Sony Semiconductor 

CXA2089Q/S

A-IN1 (3 each): This bit selects the input signals output to each audio output.

0: Mute

1: Selects the LTV/RTV inputs

2: Selects the LV1/RV1 inputs

3: Selects the LV2/RV2 inputs

4: Selects the LV3/RV3 inputs

5: Selects the LV4/RV4 inputs

6: Mute

7: Mute

AV-IN2 (3): This bit selects the input signals output to output 2 (VOUT2, YOUT2/COUT2, LOUT2/ROUT2).

Note) Both the video output and the audio output are selected at the same time only for AV-IN2.

0: Mute

1: Selects the TV and LTV/RTV inputs

2: Selects the V1, Y1/C1 and LV1/RV1 inputs

3: Selects the V2, Y2/C2 and LV2/RV2 inputs

4: Selects the V3, Y3/C3 and LV3/RV3 inputs

5: Selects the V4 and LV4/RV4 inputs

6: Mute

7: Mute

DC OUT (2): This bit sets the DC voltage output from DC OUT.

0: 4.5V

1: 0V

2: 1.9V

3: 4.5V

3) Status Registers

• When reading two bytes

S Slave address A

DATA1

A

DATA2

NA P

• When reading one byte

S Slave address A

DATA1

NA P

S: Start condition

A: Acknowledge

NA: No acknowledge

P: Stop condition

When communication is to be terminated in the status register reading mode, the no-acknowledge signal is

needed to assure that the master does not issue the acknowledge signal to the slave.

It is possible to read only DATA1 of the status register by sending the no-acknowledge signal after DATA1.

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