TS486
TS487
100mW STEREO HEADPHONE AMPLIFIER WITH STANDBY
MODE
■ OPERATING FROM Vcc=2V to 5.5V
■ STANDBY MODE ACTIVE LOW (TS486) or
HIGH (TS487)
PIN CONNECTIONS (top view)
TS486IDT: SO8, TS486IST, TS486-1IST,
TS486-2IST, TS486-4IST: MiniSO8
■ OUTPUT POWER: 102mW @5V, 38mW
@3.3V into 16Ω with 0.1% THD+N max (1kHz)
■ LOW CURRENT CONSUMPTION: 2.5mA max
■ High Signal-to-Noise ratio: 103dB(A) at 5V
■ High Crosstalk immunity: 83dB (F=1kHz)
■ PSRR: 58 dB (F=1kHz), inputs grounded
■ ON/OFF click reduction circuitry
1
2
3
4
8
7
6
5
V CC
OUT (1)
OUT (2)
VIN (2)
■ Unity-Gain Stable
VIN (1)
■ SHORT CIRCUIT LIMITATION
BYPASS
■ Available in SO8, MiniSO8 & QFN 3x3mm
GND
SHUTDOW N
DESCRIPTION
The TS486/7 is a dual audio power amplifier capa-
ble of driving, in single-ended mode, either a 16 or
a 32Ω stereo headset.
TS486-IQT,
TS486-1IQT, TS486-2IQT, TS486-4IQT: QFN8
Capable of descending to low voltages, it delivers
up to 90mW per channel (into 16Ω loads) of con-
tinuous average power with 0.3% THD+N in the
audio bandwitdth from a 5V power supply.
An externally-controlled standby mode reduces
the supply current to 10nA (typ.). The unity gain
stable TS486/7 can be configured by external
gain-setting resistors or used in a fixed gain ver-
sion.
1
2
3
4
OUT (1)
8
7
6
5
Vcc
VIN (1)
OUT (2)
VIN (2)
BYPASS
GND
SHUTDOWN
TS487IDT: SO8, TS487IST, TS487-1IST,
TS487-2IST, TS487-4IST: MiniSO8
APPLICATIONS
■ Headphone Amplifier
■ Mobile phone, PDA, computer motherboard
■ High end TV, portable audio player
OUT (1)
VI N (1)
1
2
3
4
8
7
6
VCC
OUT (2)
VIN (2)
ORDER CODE
BYPASS
GND
5
Package
SHU TDOWN
Part
Number
Temperature
Range: I
Gain Marking
D
S
Q
TS486
•
•
external TS486I
external TS487I
TS487-IQT,
TS487-1IQT, TS487-2IQT, TS487-4IQT: QFN8
TS487
TS486
•
tba external K86A
TS486-1
TS486-2
TS486-4
TS487
tba tba x1/0dB
tba tba x2/6dB
K86B
K86C
OUT (1)
1
2
3
4
8
7
6
Vcc
-40, +85°C
tba tba x4/12dB K86D
tba external K87A
VIN (1)
OUT (2)
VIN (2)
BYPASS
•
GND
5
SHUTDOWN
TS487-1
TS487-2
TS487-4
tba tba x1/0dB
tba tba x2/6dB
K87B
K87C
tba tba x4/12dB K87D
MiniSO & QFN only available in Tape & Reel with T suffix,
SO is available in Tube (D) and in Tape & Reel (DT)
November 2002
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