A1550P 查看數據表（PDF） - Sony Semiconductor

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A1550P

Dolby B∗ type Noise Reduction System

Sony Semiconductor 

CXA1550P, CXA1551M/P, CXA1552M/P, CXA1553M/P

Pin Description and Equivalent Circuit

Pin

Symbol

No.

Z (in)

VDC

(V)

(Ta=25 °C, VCC=12 V, single supply, no signal)

Equivalent circuit

Description

VCC

1, 16 REC IN

40 k 6.0 V 1

16

40k

2 VCC

— 12.0 V

Recording (encode) input pin

VCC/2

GND

VCC power supply pin

VCC

3, 14 PB IN

40 k 6.0 V 3

14

4 VCT

2 k 6.0 V

5 NRSW

—

—

5

6, 11 LINE OUT —

6.0 V 6

11

Playback (decode) input pin

40k

VCC/2

GND

VCC/2 output pin

VCC

50µA 50µA

50k

NR control pin

H : Double speed

M : NR off

L : NR on

GND

VCC

200

Line (decode) output pin

200

GND

—3—

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