TS482, TS482ID, TS482IDT, TS482IQT, TS482IST

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TS482
100mW Stereo Headphone Amplifier

Operating from Vcc=2V to 5.5V 100mW into 16 at 5V 38mW into 16 at 3.3V 11.5mW into 16 at 2V Switch ON/OFF click reduction circuitry High power supply rejection ratio: 85dB at 5V High signal-to-noise ratio: 110dB(A) at 5V High crosstalk immunity: 100dB (F=1kHz) Rail-to-rail input and output Unity-gain stable Available in SO-8, MiniSO-8 & DFN8

TS482ID, TS482IDT - SO-8
OUT (1) VIN- (1) VIN+ (1) GND 1 2 3 4 8 7 6 5 VCC OUT (2) VIN- (2) VIN+ (2)

TS482IST - MiniSO-8
OUT (1) VIN- (1) VIN+ (1) GND 1 2 3 4 8 7 6 5 VCC OUT (2) VIN- (2) VIN+ (2)

TS482IQT - DFN8

Description
OUT (1)

1 2 3 4

8 7 6 5

Vcc OUT (2) VIN - (2) VIN + (2)

The TS482 is a dual audio power amplifier able to drive a 16 or 32 stereo headset down to low voltages. It is delivering up to 100mW per channel (into 16 loads) of continuous average power with 0.1% THD+N from a 5V power supply. The unity gain stable TS482 can be configured by external gain-setting resistors.

VIN - (1) VIN + (1) GND

Typical application schematic
Rfeed1 3.9k RpolVcc Cs 100k 8 3.9k 2 1 Rin1 3 + Cb TS482 + 5 + 7 Rin2 1uF 6 3.9k 4 100k Rpol 3.9k
+

1uF

Vcc

+

Stereo headphone amplifier Optical storage Computer motherboard PDA, organizers & notebook computers High-end TV, set-top box, DVD players Sound cards
Left In

2.2uF 2.2uF
+

Cin2

Rfeed2

Order Codes
Part Number TS482ID/IDT TS482IST TS482IQT -40, +85 C Temperature Range Package SO-8 miniSO-8 DFN8 Packing Tube or Tape & Reel Tape & Reel 482I Marking

November 2005

+ +

Applications

Right In Cin1

220uF Cout1 Cout2

+

RL=32Ohms

+

RL=32Ohms

220uF

Rev 2 1/26
www.st.com
26

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TS482 DATASHEET