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TS4902| Datasheet

By datasheet - April 3rd, 2008

TS4902, TS4902ID, TS4902IDT, TS4902IST

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TS4902
300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW
s OPERATING FROM VCC = 2.2V to 5.5V s 0.7W OUTPUT POWER @ Vcc=5V, THD=1%,
f=1kHz, with an 8 load PIN CONNECTIONS (top view)

s 0.3W OUTPUT POWER @ Vcc=3.3V,

THD=1%, f=1kHz, with an 8 load s ULTRA LOW CONSUMPTION IN STANDBY MODE (10nA) s 77dB PSRR @ 217Hz from 5V to 2.2V s ULTRA LOW POP & CLICK s ULTRA LOW DISTORTION (0.1%) s UNITY GAIN STABLE s AVAILABLE IN MiniSO8 & SO8 DESCRIPTION The TS4902 is an audio power amplifier designed to provide the best price to power ratio while preserving high audio quality. Available in MiniSO8 & SO8 package, it is capable of delivering up to 0.7W of continuous RMS ouput power into an 8 load @ 5V. TS4902 is also exhibiting an outstanding 0.1% distortion level (THD) from a 5V supply for a Pout of 200mW RMS. An externally controlled standby mode reduces the supply current to less than 10nA. It also includes an internal thermal shutdown protection. The unity-gain stable amplifier can be configured by external gain setting resistors. APPLICATIONS s Mobile Phones (Cellular / Cordless) s PDAs s Portable Audio Devices ORDER CODE
Part Number TS4902IST TS4902ID Temperature Range -40, +85 C Package

TS4902IS-TS4902IST - MiniSO8

Standby Bypass VIN+ VIN-

1 2 3 4

8 7 6 5

VOUT2 GND VCC VOUT1

TS4902ID-TS4902IDT - SO8

Standby Bypass VIN+ VIN-

1 2 3 4

8 7 6 5

VOUT2 GND VCC VOUT1

TYPICAL APPLICATION SCHEMATIC
Cfeed Rfeed VCC 6 Audio Input Cin 3 Vin+ + RL 8 Ohms VCC AV = -1 2 1 Bypass Standby Bias GND Cb 7 TS4902 + Vout 2 8 Cs

Rin

4

Vin-

-

V C Vout 1 5

ST

D
Rstb

S = MiniSO Package (MiniSO) is only available in Tape & Reel (ST) D = Small Outline Package (SO) - also available in Tape & Reel (DT)

January 2002

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