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TS488IST 数据表(PDF) 1 Page - STMicroelectronics

部件名 TS488IST
功能描述  Pop-free 120mW stereo headphone amplifier
Download  32 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS488IST 数据表(HTML) 1 Page - STMicroelectronics

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September 2006
Rev 4
1/32
32
TS488-TS489
Pop-free 120mW stereo headphone amplifier
Features
Pop and click noise protection circuitry
Operating range from VCC = 2.2V to 5.5V
Standby mode active low (TS488) or high (TS489)
Output power:
– 120mW @5V, into 16
Ω with 0.1% THD+N
max (1kHz)
– 55mW @3.3V, into 16
Ω with 0.1% THD+N
max (1kHz)
Low current consumption: 2.7mA max @5V
Ultra low standby current consumption: 10nA
typical
High signal-to-noise ratio
High crosstalk immunity: 102dB (F = 1kHz)
PSRR: 70dB typ. (F = 1kHz), inputs grounded
@5V
Unity-gain stable
Short-circuit protection circuitry
Available in lead-free MiniSO-8 & DFN8
2mm x 2mm
Description
The TS488/9 is an enhancement of TS486/7 that
eliminates pop and click noise and reduces the
number of external passive components.
The TS488/9 is a dual audio power amplifier
capable of driving, in single-ended mode, either a
16
Ω or a 32Ω stereo headset.
Capable of descending to low voltages, it delivers
up to 31mW per channel (into 16
Ω loads) of
continuous average power with 0.1% THD+N in
the audio bandwidth from a 2.5V power supply.
An externally-controlled standby mode reduces
the supply current to 10nA (typ.). The unity gain
stable TS488/9 is configured by external gain-
setting resistors.
Applications
Headphone amplifier
Mobile phone, PDA, computer motherboard
High-end TV, portable audio player
TS488IST - MiniSO-8
OUT (1)
4
3
2
1
BYPASS
GND
VCC
OUT (2)
VIN (2)
SHUTDOWN
VIN (1)
5
6
7
8
OUT (1)
4
3
2
1
BYPASS
GND
VCC
OUT (2)
VIN (2)
SHUTDOWN
VIN (1)
5
6
7
8
OUT (1)
4
3
2
1
BYPASS
GND
VCC
OUT (2)
VIN (2)
SHUTDOWN
VIN (1)
5
6
7
8
OUT (1)
4
3
2
1
BYPASS
GND
VCC
OUT (2)
VIN (2)
SHUTDOWN
VIN (1)
5
6
7
8
OUT (1)
4
3
2
1
BYPASS
GND
VCC
OUT (2)
VIN (2)
SHUTDOWN
VIN (1)
5
6
7
8
TS488IQT - DFN8
TS489IQT - DFN8
TS489IST - MiniSO-8
8
Bypass
GND
Shutdown
Vcc
OUT (2)
OUT (1)
7
6
5
1
2
3
4
VIN (2)
VIN (1)
8
Bypass
GND
Shutdown
Vcc
OUT (2)
OUT (1)
7
6
5
1
2
3
4
VIN (2)
VIN (1)
8
8
Bypass
GND
Shutdown
Vcc
OUT (2)
OUT (1)
7
7
6
6
5
5
1
1
2
2
3
3
4
4
VIN (2)
VIN (1)
8
Bypass
GND
Shutdown
Vcc
OUT (2)
OUT (1)
7
6
5
1
2
3
4
VIN (2)
VIN (1)
8
8
Bypass
GND
Shutdown
Vcc
OUT (2)
OUT (1)
7
7
6
6
5
5
1
1
2
2
3
3
4
4
VIN (2)
VIN (1)
www.st.com


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