TA2170FLG datasheet(4/13 Pages) TOSHIBA

Part #	TA2170FLG

Description	Low Current Consumption Headphone Amplifier (Built-in Input Selector)

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Manufacturer	TOSHIBA [Toshiba Semiconductor]

Direct Link	http://www.semicon.toshiba.co.jp/eng

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4 / 13 page

TA2170FLG

2006-04-19

4

Pin No. & Name

Function

Internal Circuit

Voltage

(V)

13

OUT ADJ

DC output voltage adjustment

Either connect this pin or leave it

open, depending on the level of

VCC2.

If the power supply of a 1.5-V

system is applied to VCC2, connect

this pin to BIAS IN (pin 14).

If the power supply of a 3-V system

is applied to VCC2, leave this pin

open.

1.85

14

BIAS IN

Bias circuit input

1.15

15

BIAS OUT

Bias circuit output

1.15

16

VCC1

VCC for everything other than the

power drive stage

3

18

RF IN

Ripple filter input

2.7

17

GND

⎯

0

19

PW SW

Power switch

IC ON: H level

IC OF : L level

Refer to Application Note 4.

3

20

ALL MUTE

All mute switch

Mute ON: L level

Mute OFF: H level

Refer to Application Note 4.

⎯

21

MUTE3

Mute switch of buffer amplifier 3

Mute ON: L level

Mute OFF: H level

Refer to Application Note 4.

⎯

22

MUTE2

Mute switch of buffer amplifier 2

Mute ON: L level

Mute OFF: H level

Refer to Application Note 4.

⎯

23

MUTE1A

Mute switch of buffer amplifier 1A

Mute ON: L level

Mute OFF: H level

This switch is used for turning on

A channel mutes for buffer

amplifier 1.

Refer to Application Note 4.

⎯

24

MUTE1

Mute switch of buffer amplifier 1

Mute ON: L level

Mute OFF: H level

Refer to Application Note 4.

⎯

VCC2

VCC1

15

16

13

18

14

VCC1

100 k

Ω

19

VCC

10 k

Ω

21

VCC

10 k

Ω

20

20 k

Ω

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TA2170FLG Datasheet(PDF) 4 Page - Toshiba Semiconductor

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