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TPA6132A2 数据表(PDF) 1 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

部件名 TPA6132A2
功能描述  25-mW DIRECTPATH??STEREO HEADPHONE AMPLIFIER WITH POP SUPPRESSION
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制造商  TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS]
网页  http://www.taosinc.com
标志 TAOS - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

TPA6132A2 数据表(HTML) 1 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

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1
FEATURES
DESCRIPTION
APPLICATIONS
INR+
INR-
INL+
INL-
PGND
SGND
OUTR
HPVSS
CPP
CPN
VDD
HPVDD
OUTL
TPA6132A2
VBAT
CODEC
OUTR+
OUTR-
OUTL+
OUTL-
G0
ENABLE
EN
G1
GAIN1
GAIN0
TPA6132A2
www.ti.com ........................................................................................................................................................................................... SLOS597 – DECEMBER 2008
25-mW DIRECTPATH™ STEREO HEADPHONE AMPLIFIER WITH POP SUPPRESSION
23
• Patented DirectPath™ Technology Eliminates
Need for DC-Blocking Capacitors
The TPA6132A2 (sometimes referred to as TPA6132)
is a DirectPath™ stereo headphone amplifier that
Outputs Biased at 0 V
eliminates the need for external dc-blocking output
Excellent Low Frequency Fidelity
capacitors. Differential stereo inputs and built-in
• Active Click and Pop Suppression
resistors set the device gain, further reducing external
• 2.1 mA Typical Supply Current
component count. Gain is selectable at –6 dB, 0 dB,
3 dB or 6 dB. The amplifier drives 25 mW into 16
• Fully Differential or Single-Ended Inputs
speakers from a single 2.3 V supply. The TPA6132A2
Built-In Resistors Reduces Component
(TPA6132) provides a constant maximum output
Count
power independent of the supply voltage, thus
facilitating the design for prevention of acoustic
Improves System Noise Performance
shock.
• Constant Maximum Output Power from 2.3 V
to 5.5 V Supply
The TPA6132A2 (TPA6132) features fully differential
inputs to reduce system noise pickup between the
Simplifies Design to Prevent Acoustic
audio source and the headphone amplifier. The high
Shock
power
supply
noise
rejection
performance
and
• Improved RF Noise Immunity
differential architecture provides increased RF noise
• MicrosoftTM Windows VistaTM Compliant
immunity. For single-ended input signals, connect
INL+ and INR+ to ground.
• High Power Supply Noise Rejection
100 dB PSRR at 217 Hz
The device has built-in pop suppression circuitry to
completely eliminate disturbing pop noise during
90 dB PSRR at 10 kHz
turn-on and turn-off. The amplifier outputs have
• Wide Power Supply Range: 2.3 V to 5.5 V
short-circuit and thermal-overload protection along
• Gain Settings: –6 dB, 0 dB, 3 dB, and 6 dB
with ±8 kV HBM ESD protection, simplifying end
equipment compliance to the IEC 61000-4-2 ESD
• Short-Circuit and Thermal-Overload Protection
standard.
• ±8 kV HBM ESD Protected Outputs
The TPA6132A2 (TPA6132) operates from a single
• Small Package Available
2.3 V to 5.5 V supply with 2.1 mA of typical supply
16-Pin, 3 mm × 3 mm Thin QFN
current. Shutdown mode reduces supply current to
less than 1
µA.
• Smart Phones / Cellular Phones
• Notebook Computers
• CD / MP3 Players
• Portable Gaming
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
DirectPath is a trademark of Texas Instruments.
3
Windows Vista is a trademark of Microsoft Corporation.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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