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TPA6139A2RGTR Scheda tecnica(PDF) 1 Page - Texas Instruments

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Il numero della parte TPA6139A2RGTR
Spiegazioni elettronici  DirectPath??25-mW Headphone Amplifier With Programmable-Fixed Gain
Download  22 Pages
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

TPA6139A2RGTR Scheda tecnica(HTML) 1 Page - Texas Instruments

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SOC
TPA 6139A2
RIGHT
DAC
DAC
LEFT
Headphone
Programmable
Gain
-1x to -10x
+
+
TPA6139A2
www.ti.com
SLOS700B – JANUARY 2011 – REVISED JUNE 2012
DirectPath™ 25-mW Headphone Amplifier With
Programmable-Fixed Gain
Check for Samples: TPA6139A2
1
FEATURES
DESCRIPTION
The TPA6139A2PW is a 25mW Pop-Free stereo
23
DirectPath™
Head Phone driver designed to reduce component
Eliminates Pop/Clicks
count, board space and cost. It is ideal for single
Eliminates Output DC-Blocking Capacitors
supply electronics where size and cost are critical
design parameters.
3 V to 3.6 V Supply voltage
Low Noise and THD
The TPA6139A2 does not require a power supply
greater than 3.3V to generate its 25mW, nor does it
SNR > 105 dB at –1x Gain
require a split rail power supply.
Typical Vn < 15
μVms 20-20kHz at –1x Gain
Designed
using
TI’s
patented
DIRECTPATH™
THD+N < 0.003% at 10k
Ω Load and –1x
technology which integrates a charge pump to
Gain
generate a negative supply rail that provides a clean,
25 mW into 600
Ω Load
pop-free ground biased output. The TPA6139A2 is
capable of driving 25mW into 32
Ω and 2Vms into a
2 Vrms Output Voltage into 5k
Ω Load
600
Ω load. DIRECTPATH also allows the removal of
Single Ended Input and Output
the costly output DC-blocking capacitors.
Programmable Gain Select Reduces
The device has fixed gain single ended inputs with a
Component Count
gain select pin. Using a single resistor on this pin, the
13x Gain Values
designer can choose from 13 internal programmable
Active Mute With More Than 80dB Attenuation
gain settings to match the line driver with the Codec
output level. It also reduces the component count and
Short Circuit and Thermal Protection
board space.
±8kV HBM ESD Protected Outputs
Headphone outputs have ±8kV HBM ESD protection
enabling
a
simple
ESD
protection
circuit.
The
APPLICATIONS
TPA6139A2 has built-in active mute control with more
PDP / LCD TV
that 80dB attenuation for pop-free mute on/off control.
Blu-ray Disc™, DVD Players
The TPA6139A2 is available in a 14-pin TSSOP and
Mini/Micro Combo Systems
a 16-pin QFN. For a pin compatible 2vrms line driver
Soundcards
see DRV612.
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, DIRECTPATH are trademarks of Texas Instruments.
3
Blu-ray Disc is a trademark of Blu-ray Disc Association.
UNLESS
OTHERWISE
NOTED
this
document
contains
Copyright © 2011–2012, Texas Instruments Incorporated
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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