CXA2074Q/S View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA2074Q/S

US Audio Multiplexing Decoder

Sony Semiconductor 

CXA2074Q/S

Description of Registers

Control registers

Register

ATT

VCO

FILTER

Number of bits Classification∗1

Contents

4

A

Input level adjustment

6

A

STEREO VCO & SAP VCO free running frequency adjustment

6

A

STEREO and SAP and dbx filter adjustment

SPECTRAL

6

WIDEBAND

6

A

Adjustment of stereo separation (3kHz)

A

Adjustment of stereo separation (300Hz)

TEST-DA

1

T

Turn to DAC test mode and VCO adjustment mode by means

of TEST-DA = 1.

TEST1

1

FST

1

T

Turn to test mode by means of TEST = 1.

(Adjustment of FILTER)

T

Turn to forced stereo by means of FST = 1.

VOL-L

6

VOL-R

6

BASS

4

U

LSOUT-L output signal level control

U

LSOUT-R output signal level control

U

LSOUT output bass control

TREBLE

4

NRSW

1

U

LSOUT output treble control

U

Selection of the output signal (Stereo mode, SAP mode)

FOMO

1

U

Turn to forced MONO by means of FOMO = 1.

(Left channel only is MONO during SAP output.)

TVSW

1

U

Selection of TV mode or external input mode for LPOUT

output

EXT

1

U

Selection of external input 1 mode or external input 2 mode

for LPOUT output. (TVSW = 1)

FEXT1

1

FEXT2

1

U

External input 1 forced MONO (1: forced MONO ON)

U

External input 2 forced MONO (1: forced MONO ON)

PSW

1

U

Selection of internal mode or LPIN mode for LSOUT output.

M1

1

U

Selection of LPOUT mute ON/OFF

(0: mute ON, 1: mute OFF)

M2

1

U

Selection of LSOUT mute ON/OFF

(0: mute ON, 1: mute OFF)

ATTSW

1

S

Turn the input stage MVCA off when ATTSW = 1.

SAPC

1

S

Selection of SAP mode or L + R mode according to the

presence of SAP broadcasting

∗1 Classification U: User control

A: Adjustment

S: Proper to set

T: Test

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