CXA1898Q 查看數據表（PDF） - Sony Semiconductor

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CXA1898Q

Recording/Playback Equalizer Amplifier

Sony Semiconductor 

CXA1898Q

Pin

No.

Symbol

39 PB FB22

46 PB FB21

DC

voltage

2.8V

I/O

I/O

resistance

Equivalent circuit

VCC

RFS

2k

2k

×4

×4

—

—

147

39

7k × 3

×3

46

Description

Connects a capacitor

for determining

playback equalizer

time constants, such

as 120µs and 70µs.

GND

GND

GND

40 PB FB12

45 PB FB11

1.4V

—

105kΩ

VCC VCC

10k 10k

41 PB INB2

42 PB INA2

43 PB INA1

0.0V

I

44 PB INB1

70kΩ

41

×6

42 147

43

×6

44 70k

GND GND

RFS VCC

VCC

1k

1k 210k

5p

×2

40

147

45

210k

GND

Playback equalizer

negative feedback.

Playback equalizer

input.

VCC

VCC

10µ

48 AMS GAIN 3.5V —

—

100k

48

147

Connects a resistor

for determining AMS

signal detection level

and a capacitor for

determining HPF

cut-off frequency.

GND

GND

Note)

The resistance of open collector outputs (Pins 2 and 13 to 22) can be also connected to VCC.

–7–

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