CXA2020M 查看數據表（PDF） - Sony Semiconductor

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CXA2020M

EIAJ Sound Multiplexing Decoder

Sony Semiconductor 

CXA2020M/S

Pin No.

Symbol

SOP SDIP

Pin

voltage

20 16 ROUT

4.1V

21 17 LOUT

4.1V

22 18 MCIN

4.1V

23 19 MCOUT

3.4V

25 20 SCIN

4.1V

26 21 SCOUT

3.9V

28 22 SUBI

4.1V

Equivalent circuit

Description

Vcc 147

17.2k

20

(16)

32k

1.5m

32k

Vcc

GND

R-ch output.

Vcc 147

17.2k

21

(17)

32k

1.5m

32k

Vcc

GND

L-ch output.

During "TEST", the Cue

signal component

passed through the Cue

BPF is output.

Vcc Vcc

147

147

23

(19)

147

147

22

(18)

16k

160µ

4.2V

80µ 80µ

Vcc

20P

GND

Vcc

Vcc

147

26

(21)

8k

Vcc

40k

147

25

(20)

147

16k

4.2V

4.2V

320µ

20P

80µ 80µ

GND

80µ 20µ

Vcc

Vcc 16k

64k

16k 1k

8k 8k

28

(22) 147

4.2V

147

1.7V

DC cut capacitor

connection of main

signal.

DC cut capacitor

connection of sub

signal.

Bias capacitor

connection of sub FM

detector. "TEST" mode,

used for filter

adjustment, is

activated by grounding

this pin.

–5–

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