CXA1917AM Просмотр технического описания (PDF) - Sony Semiconductor

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CXA1917AM

Dolby S type Noise Reduction Processor

Sony Semiconductor 

CXA1917AM/AS

B-C-S Type Switchable Stereo Processor

Fig. 4 shows the stereo processor switchable to any B-C-S type mode. The operational amplifier is unnecessary,

because the CXA1563 is used for a B-C type processor and S-type changeover switch is built in the IC. It is

recommended that the S type mode be used for recording level calibration.

RECOUT

(–6dBm)

5

LINEOUT

(–6dBm)

6

RECIN

(–20dBm)

7

C61

4.7µ

C62

4.7µ

C63

2.2µ

5 RECOUT

A1

6 GND

R61

GND

56k

7 INPUT

R63 R62

3k

12k

VCC 1

GND 2

VEE 3

VCT 4

Encoder Unit

VCT

Fig. 1. Recording Processor

1 VCC

2 GND

3 VEE

4 VCT

C62

4.7µ

LINEOUT

(–6dBm)

6

PBIN

(–26dBm)

C64

2.2µ

8

R61

22k

R64

18k

A1

R65

2k

5 RECOUT

6 GND

GND

7 INPUT

VCC 1

GND 2

VEE 3

VCT 4

VCT

Encoder Unit

Fig. 2. Playback Processor

1 VCC

2 GND

3 VEE

4 VCT

RECOUT

(–6dBm)

5

LINEOUT

(–6dBm)

6

PBIN

(–26dBm)

8

RECIN

(–20dBm)

7

C61

10µ

C62

10µ

C63

2.2µ

S1

R61

56k

R64

18k

A1

S2

5 RECOUT

6 GND

GND

7 INPUT

VCC 1

GND 2

VEE 3

VCT 4

R65 R63

2k 3k

R62

12k

Encoder Unit

VCT

Fig. 3. Switchable Processor

1 VCC

2 GND

3 VEE

4 VCT

– 13 –

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