CXA2561Q View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA2561Q

Dolby B-C Type Noise Reduction System with Playback Equalizer Amplifier

Sony Semiconductor 

CXA2561Q

Pin

No.

Symbol

Typical pin voltage

I/O

DC

AC

I/O

resis-

tance

(Ta = 25°C, VCC = 8.0V, DVCC = 5.0V)

Equivalent circuit

Description

16 NRSW

19 DRSW

0.0V

when —

open.

147

I 100kΩ 16

19 100k

Vcc Dolby NR control.

Low (open):

NR OFF

High: NR ON

Head select control.

Low (open):

FORWARD

GND High: REVERSE

0.0V

20 MSMODE when —

open.

I

100kΩ 20

147

100k

Vcc

Music sensor mode

control.

Low (open): G1

High: G2

25 DIREF

1.2V

— ——

147

25

26 GND

31 PBFB2

40 PBFB1

0.0V

— ——

4.0V –70dBm I

—

32 PBRIN2

39 PBRIN1

34 PBFIN2

37 PBFIN1

32 150

39

34

4.0V –70dBm I

—

37

50p

–6–

GND

Vcc

Resistance for

setting the reference

current.

(Connects 20kΩ

between DIREF pin

and GND for the

standerd setting.)

GND

Ground.

Playback equializer

Vcc

amplifier feedback.

150

31

40

50p

GND

Playback equializer

amplifier input.

(REVERSE head

connected)

Playback equializer

amplifier input.

(FORWARD head

connected)

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