LA7451M 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LA7451M

Two-Channel, Noise Reduction Processor for 8-mm VCR PCM

SANYO -> Panasonic 

LA7451M

Playback mode

Parameter

Output level

Output level differntial

Total harmonic distortion

Maximum input level

Output noise level

Symbol

VOP

VOCH

THDP

VOMP

VONP

SW1

B

A

B/A

B

A

B

A

A

A

SW2

A

B

A/B

A

B

A

B

A

A

VCT1

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

Input

VIN1

VIN2

VIN1/VIN2

VIN1

VIN2

VIN1

VIN2

–

–

Test point

VO3

VO4

VO3/VO4

VO3

VO4

VO3

VO4

VO3

VO4

Test Setup Procedure

1. Select playback mode.

2. Apply a 400Hz, –16dBs input signal, VIN1, and

measure the AC voltage across the 4.7µF capaci-

tor connected to VCA BIAS1, V1.

3. Apply a 7kHz, –16dBs input signal, VIN1, and

measure the AC voltage, V2 again as in step 2.

4. Adjust the volume control variable resistor so

that V1 – V2 becomes –6.8dB.

Sample Application Circuit

No.3806–10/11

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