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TPA6120A2DWP Datasheet

  • TPA6120A2DWP

  • HIGH FIDELITY HEADPHONE AMPLIFIER

  • 514.57KB

  • 24頁

  • TI

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

TPA6120A2DWP 產(chǎn)品屬性

  • 25

  • 集成電路 (IC)

  • 線性 - 音頻放大器

  • -

  • AB 類

  • 耳機，2-通道（立體聲）

  • 80mW x 2 @ 600 歐姆

  • 10 V ~ 30 V，±5 V ~ 15 V

  • 差分輸入，短路和熱保護

  • 表面貼裝

  • 20-SO PowerPad

  • 20-SOIC（0.295"，7.50mm 寬）裸露焊盤

  • 管件

  • 296-18927-ND - EVAL MODULE FOR TPA6120A2

  • 296-16920-5

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