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TPA6120A2 数据表(PDF) 1 Page - Texas Instruments

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部件名 TPA6120A2
功能描述  High Fidelity Headphone Amplifier
Download  31 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TPA6120A2 数据表(HTML) 1 Page - Texas Instruments

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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 kW
1 kW
LOUT
ROUT
1 kW
RF
RO
39.2 W
RO
1 kW
RF
RF
1 kW
RI
1 kW
RI
1 kW
RI
1 kW
CF
2.7 nF
RF
1 kW
1 kW
CF
2.7 nF
RF
CF
2.7 nF
RF
1 kW
1 kW
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
39.2 W
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPA6120A2
SLOS431B – MARCH 2004 – REVISED FEBRUARY 2015
TPA6120A2 High Fidelity Headphone Amplifier
1 Features
3 Description
In applications requiring a high-power output, very
1
SNR of 128dB A-Weighted.
high fidelity headphone amplifier, the TPA6120A2
THD of 112.5dB
replaces a costly discrete design and allows music,
Current-Feedback Architecture
not the amplifier, to be heard. The TPA6120A2's
current-feedback AB amplifier architecture delivers
Output Voltage Noise of 0.9µVrms at
high bandwidth, extremely low noise, and up to
Gain = 1V/V (16
Ω Load)
128dB of dynamic range.
Power Supply Range: ±5V to ±15V
Three key features make current-feedback amplifiers
1300V/µs Slew Rate
outstanding for audio. The first feature is the high
Can be configured for Single Ended or Differential
slew
rate
that
prevents
odd
order
distortion
Inputs
anomalies. The second feature is current-on-demand
Independent Power Supplies for Low Crosstalk
at the output that enables the amplifier to respond
quickly and linearly when necessary without risk of
output distortion. When large amounts of output
2 Applications
power are suddenly needed, the amplifier can
Professional Audio Equipment
respond extremely quickly without raising the noise
HiFi Smartphone
floor of the system and degrading the signal-to-noise
ratio. The third feature is the gain-independent
Consumer Home Audio Equipment
frequency response that allows the full bandwidth of
Headphone Drivers
the amplifier to be used over a wide range of gain
settings.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
HSOP (20)
7.5mm x 12.82mm
TPA6120A2
VQFN (14)
3.5mm x 3.5mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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