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TPA6136A2 데이터시트(PDF) 1 Page - Texas Instruments

부품명 TPA6136A2
상세설명  25-mW DIRECTPATH??STEREO HEADPHONE AMPLIFIER WITH POP SUPPRESSION
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI - Texas Instruments

TPA6136A2 데이터시트(HTML) 1 Page - Texas Instruments

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1
FEATURES
APPLICATIONS
INR+
INR-
INL+
INL-
GND
SGND
OUTR
HPVSS
CPP
CPN
VDD
HPVDD
OUTL
TPA6136A2
VBAT
CODEC
OUTR+
OUTR-
OUTL+
OUTL-
GAIN
ENABLE
EN
HI-Z
HI-ZMODE
GAIN
DESCRIPTION
TPA6136A2
www.ti.com ........................................................................................................................................................ SLOS621A – JULY 2009 – REVISED AUGUST 2009
25-mW DIRECTPATH™ STEREO HEADPHONE AMPLIFIER WITH POP SUPPRESSION
The TPA6136A2 (TPA6136) features fully differential
inputs with an integrated low pass filter to reduce
23
• Patented DirectPath™ Technology Eliminates
system noise pickup between the audio source and
Need for DC-Blocking Capacitors
the
headphone
amplifier
and
to
reduce
DAC
Outputs Biased at 0 V
out-of-band noise. The high power supply noise
rejection performance and differential architecture
Excellent Low Frequency Fidelity
provides
increased
RF
noise
immunity.
For
• Active Click and Pop Suppression
single-ended input signals, connect INL+ and INR+ to
• HI-Z Output Mode Allows Sharing Output Jack
ground.
• 2.1 mA Typical Supply Current
The device has built-in pop suppression circuitry to
• Fully Differential Inputs Reduce System Noise
completely eliminate disturbing pop noise during
turn-on and turn-off. The amplifier outputs have
Also Configurable as Single-Ended Inputs
short-circuit and thermal-overload protection along
• SGND Pin Eliminates Ground Loop Noise
with ±8 kV HBM ESD protection, simplifying end
• Constant Maximum Output Power from 2.3 V
equipment compliance to the IEC 61000-4-2 ESD
to 5.5 V Supply
standard.
Simplifies Design to Prevent Acoustic
The TPA6136A2 (TPA6136) operates from a single
Shock
2.3 V to 5.5 V supply with 2.1 mA of typical supply
• MicrosoftTM Windows VistaTM Compliant
current. Shutdown mode reduces supply current to
less than 1
µA.
• 100 dB Power Supply Noise Rejection
• Wide Power Supply Range: 2.3 V to 5.5 V
• Gain Settings: 0 dB and 6 dB
• Short-Circuit and Thermal-Overload Protection
• ±8 kV HBM ESD Protected Outputs
• Small Package Available
16-Ball, 1.6 x 1.6 mm, 0.4 mm Pitch WCSP
• Smart Phones / Cellular Phones
• Portable Media / MP3 Players
• Notebook Computers
• Portable Gaming
The TPA6136A2 (sometimes referred to as TPA6136)
is a DirectPath™ stereo headphone amplifier that
eliminates the need for external dc-blocking output
capacitors. Differential stereo inputs and built-in
resistors set the device gain, further reducing external
component count. Gain is selectable at 0 dB or 6 dB.
The amplifier drives 25 mW into 16
Ω speakers from
a single 2.3 V supply. The TPA6136A2 (TPA6136)
provides
a
constant
maximum
output
power
independent of the supply voltage, thus facilitating the
design for prevention of acoustic shock.
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 © 2009, 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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