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TS419

TS421

360mW MONO AMPLIFIER WITH STANDBY MODE

s

OPERATING FROM Vcc=2V to 5.5V

s

STANDBY MODE

ACTIVE HIGH (TS419) or

LOW (TS421)

s

OUTPUT POWER into 16鈩? 367mW @ 5V

with 10% THD+N max or 295mW @5V and

110mW @3.3V with 1% THD+N max.

s

LOW CURRENT CONSUMPTION:

2.5mA max

s

High Signal-to-Noise ratio: 95dB(A) at 5V

s

PSRR: 56dB typ. at 1kHz, 46dB at 217Hz

s

SHORT CIRCUIT LIMITATION

s

ON/OFF click reduction circuitry

s

Available in SO8,

MiniSO8 & DFN 3x3

DESCRIPTION

The TS419/TS421 is a monaural audio power am-

plifier driving in BTL mode a 16 or 32鈩?earpiece or

receiver speaker. The main advantage of this con-

figuration is to get rid of bulky ouput capacitors.

Capable of descending to low voltages, it delivers

up to 220mW per channel (into 16鈩?loads) of con-

tinuous average power with 0.2% THD+N in the

audio bandwidth from a 5V power supply.

An externally controlled standby mode reduces

the supply current to 10nA (typ.). The TS419/

TS421 can be configured by external gain-setting

resistors or used in a fixed gain version.

APPLICATIONS

s

16/32 ohms earpiece or receiver speaker driver

s

Mobile and cordless phones (analog / digital)

s

PDAs & computers

s

Portable appliances

ORDER CODE

Part

Number

Temp.

Range:

I

TS419IQT, TS419-xIQT: DFN8

PIN CONNECTIONS

(top view)

TS419IDT: SO8

TS419IST, TS419-xIST: MiniSO8

Standby

Bypass

V

IN

+

V

IN-

1

2

3

4

8

7

6

5

V

OUT

2

GND

V

CC

V

OUT1

GND

V

OUT 2

STANDBY

BYPASS

1

2

3

4

8

7

6

5

Vcc

V

OUT 1

V

IN-

V

IN+

TS421IDT: SO8

TS421IST, TS421-xIST: MiniSO8

Package

Gain

D

鈥?/div>

tba

鈥?/div>

tba

鈥?/div>

tba

鈥?/div>

tba

S

Q

external

x2/6dB

x4/12dB

x8/18dB

external

x2/6dB

x4/12dB

x8/18dB

TS419I

TS421I

K19A

K19B

K19C

K19D

K21A

K21B

K21C

K21D

Marking

TS421IQT, TS421-xIQT: DFN8

TS419

TS421

TS419

TS419-2

TS419-4

-40, +85擄C

TS419-8

TS421

TS421-2

TS421-4

TS421-8

GND

V

OUT 2

STANDBY

BYPASS

1

2

3

4

8

7

6

5

Vcc

V

OUT 1

V

IN-

V

IN+

MiniSO & DFN only available in Tape & Reel with T suffix.

SO is available in Tube (D) and in Tape & Reel (DT)

June 2003

1/32

型號(hào)

版本

描述

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