TS482
100mW Stereo Headphone Amplifier
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Operating from
Vcc=2V to 5.5V
100mW into 16Ω at 5V
38mW into 16Ω at 3.3V
11.5mW into 16Ω 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
O
UT (1)
V
IN- (1)
V
IN+ (1)
G
ND
1
2
3
4
8
7
6
5
V
CC
O
UT (2)
V
IN- (2)
V
IN+ (2)
TS482IST - MiniSO-8
O
UT (1)
V
IN- (1)
V
IN+ (1)
G
ND
1
2
3
4
8
7
6
5
V
CC
O
UT (2)
V
IN- (2)
V
IN+ (2)
TS482IQT - DFN8
Description
OUT
(1)
1
2
3
4
8
7
6
5
Vcc
OUT
(2)
V
IN - (2)
V
IN + (2)
The TS482 is a dual audio power amplifier able to
drive a 16 or 32Ω stereo headset down to low
voltages.
It is delivering up to 100mW per channel (into 16Ω
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.
V
IN - (1)
V
IN + (1)
GND
Typical application schematic
Rfeed1
3.9k
RpolVcc
+
Cs
100k
8
3.9k
2
-
1
Rin1
3
+
Cb
TS482
+
5
+
7
Rin2 1µF
6
-
3.9k
4
100k
Rpol
3.9k
Rfeed2
1µF
Vcc
+
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Stereo headphone amplifier
Optical storage
Computer motherboard
PDA, organizers & notebook computers
High-end TV, set-top box, DVD players
Sound cards
Left In
2.2µF
2.2µF
+
Cin2
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
220µF
Cout1
Cout2
+
RL=32Ohms
+
RL=32Ohms
220µF
Rev 2
1/26
26
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