TA2123AF 查看數據表（PDF） - Toshiba

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TA2123AF

TOSHIBA Bipolar Integrated Circuit Silicon Monolithic

Toshiba 

Terminal

No.

Name

Function

15 AMS DET

Input of AMS comparator circuit

40 AMS OUT

16 GND

17 RF OUT

18 BASE

19 VCC

24 RF IN

20 OUTA

22 OUTB

26 PW NFB

29 PW NFA

27 PW INB

28 PW INA

Output of AMS comparator circuit

High level: Rectangular pulse

Low level: “H”

—

Output of ripple filter

・Ripple filter circuit supplies

internal circuit except power

drive stage with power source

Base biasing terminal of transistor

for ripple filter

—

Ripple filter terminal

Output of power amplifier

NF of power amplifier

Input of power amplifier

(this terminal also has function of

an ADD amplifier input.)

21 OUTC

Output of center amplifier

32 PW INC

Input of center amplifier

23 PW GND

25 EQB

30 EQA

Power GND for power drive stage

Equalizer circuit (this circuit

synchronizes with the BST SW)

・Input impedance

: 1.9Ω (typ.)

TA2123AF

Internal Circuit

15

40

VREF OUT

—

VCC

+-

24

19

18

RF OUT

17

20kΩ

20kΩ

to ADD amplifier

VREF OUT

28

20

30kΩ

29

2kΩ VREF OUT

Terminal

Voltage

(V)

0.73

—

0

1.22

0.5

1.3

1.23

0.56

0.73

0.73

20kΩ VREF OUT

32

21

30kΩ

2kΩ VREF OUT

—

1.8kΩ

30

0.56

0.73

0

—

4

2002-10-30

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