TA2123AF View Datasheet(PDF) - Toshiba

Part Name

Description

Manufacturer

TA2123AF

TOSHIBA Bipolar Integrated Circuit Silicon Monolithic

Toshiba 

Terminal

No.

Name

39 BEEP

41 MT SW

44 F / R SW

45 PRE SW

Function

Input of beep signal

・This terminal receives beep

signal of a microcomputer etc.

・This terminal should be set as

high impedance or “H” when

not using this function

Muting switch of power amplifier

Power amp. on: “H” level

Power amp. off: “L” level

Refer to application note 3 (2)

Forward / reverse switch

Forward: “L” level

Reverse: “H” level

Refer to application note 3 (2)

Muting switch of preamplifier

Preamp. on: “L” level

Preamp. off: “H” level

Refer to application note 3 (2)

42 PW SW

Power on / off switch

IC on: “H” level

IC off: “L” level

Refer to application note 3 (2)

43 BST SW

Boost on / off switch

BST on: OPEN / “H” level

BST off: “L” level

Refer to application note 3 (2)

46 M / N SW

47 PRE GND

Metal / normal mode switch

Metal mode: OPEN / “H” level

Normal mode: “L” level

Refer to application note 3 (2)

Power GND for power drive stage

TA2123AF

Internal Circuit

20kΩ

39

Power amplifier

Terminal

Voltage

(V)

0.7

—

47kΩ

—

41

—

42

—

20kΩ

—

43

10kΩ

46

—

—

0

6

2002-10-30

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