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TPA6120A2DWPG4 Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TPA6120A2DWPG4
Description  HIGH FIDELITY HEADPHONE AMPLIFIER
Download  24 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPA6120A2DWPG4 Fiches technique(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION
APPLICATIONS
Filter and I/V Gain Stage
Stereo Hi−Fi
Headphone Driver
TPA6120A2
DYR > 120 dB
for Whole
System!
OUT A
OUT B
OUT C
OUT D
CF
2.7 nF
RF
LIN−
LIN+
RF
RIN−
RIN+
RI
1 k
1 k
LOUT
ROUT
1 k
RF
RO
10
RO
10
1 k
RF
RF
1 k
RI
1 k
RI
1 k
RI
1 k
CF
2.7 nF
RF
1 k
1 k
CF
2.7 nF
RF
CF
2.7 nF
RF
1 k
1 k
1/2 OPA4134
1/2 OPA4134
−IN A
−IN B
+IN B
+IN A
−IN C
−IN D
+IN D
+IN C
PCM
Audio
Data
Source
Controller
PCM1792
or
DSD1792
LRCK
BCK
DATA
RST
SCK
MDO
MC
MDI
MS
ZEROL
ZEROR
IOUT L−
IOUT L+
IOUT R−
IOUT R+
AUDIO DAC
TPA6120A2
SLOS431 – MARCH 2004
HIGH FIDELITY HEADPHONE AMPLIFIER
80 mW into 600
Ω From a ±12-V Supply at
The TPA6120A2 is a high fidelity audio amplifier built
0.00014% THD + N
on
a
current-feedback
architecture.
This
high
bandwidth, extremely low noise device is ideal for
Current-Feedback Architecture
high performance equipment. The better than 120 dB
Greater than 120 dB of Dynamic Range
of dynamic range exceeds the capabilities of the
SNR of 120 dB
human ear, ensuring that nothing audible is lost due
to the amplifier. The solid design and performance of
Output Voltage Noise of 5 µVrms at
the TPA6120A2 ensures that music, not the amplifier,
Gain = 2 V/V
is heard.
Power Supply Range:
±5 V to ±15 V
Three key features make current-feedback amplifiers
1300 V/µs Slew Rate
outstanding for audio. The first feature is the high
Differential Inputs
slew
rate
that
prevents
odd
order
distortion
Independent Power Supplies for Low
anomalies. The second feature is current-on-demand
Crosstalk
at the output that enables the amplifier to respond
quickly and linearly when necessary without risk of
Short Circuit and Thermal Protection
output distortion. When large amounts of output
power are suddenly needed, the amplifier can re-
spond extremely quickly without raising the noise
Professional Audio Equipment
floor of the system and degrading the signal-to-noise
Mixing Boards
ratio. The third feature is the gain-independent fre-
quency response that allows the full bandwidth of the
Headphone Distribution Amplifiers
amplifier to be used over a wide range of gain
Headphone Drivers
settings. The excess loop gain does not deteriorate at
Microphone Preamplifiers
a rate of 20 dB/decade.
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.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004, 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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