Power Amplifier. TPA6102A2 Datasheet

TPA6102A2 Amplifier. Datasheet pdf. Equivalent

TPA6102A2 Datasheet
Recommendation TPA6102A2 Datasheet
Part TPA6102A2
Description 50-mW Ultralow-Voltage Fixed-Gain Stereo Headphone Audio Power Amplifier
Feature TPA6102A2; TPA6102A2 50ĆmW ULTRALOWĆVOLTAGE, FIXEDĆGAIN STEREO HEADPHONE AUDIO POWER AMPLIFIER SLOS324B − JUNE .
Manufacture etcTI
Datasheet
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etcTI TPA6102A2
TPA6102A2
50ĆmW ULTRALOWĆVOLTAGE, FIXEDĆGAIN STEREO HEADPHONE
AUDIO POWER AMPLIFIER
SLOS324B − JUNE 2000 − REVISED SEPTEMBER 2004
D 50-mW Stereo Output
D Low Supply Current . . . 0.75 mA
D Low Shutdown Current . . . 50 nA
D Minimal External Components Required
D Gain Set Internally to 14 dB
D Pop Reduction Circuitry
D Internal Mid-Rail Generation
D Thermal and Short-Circuit Protection
D Surface-Mount Packaging
− MSOP
− SOIC
D 1.6-V to 3.6-V Supply Voltage Range
D or DGK PACKAGE
(TOP VIEW)
BYPASS 1 8 IN1−
GND 2 7 VO1
SHUTDOWN 3 6 VDD
IN2− 4 5 VO2
description
The TPA6102A2 is a stereo audio power amplifier packaged in either an 8-pin SOIC package or an 8-pin MOSP
package capable of delivering 50 mW of continuous RMS power per channel into 16-loads. Amplifier gain
is internally set to 14 dB (inverting) to save board space by eliminating six external resistors.
The TPA6102A2 is optimized for battery applications because of its low-supply current, shutdown current, and
THD+N. To obtain the low-supply voltage range, the TPA6102A2 biases BYPASS to VDD/4.
When driving a 16-load with 40-mW output power from 3.3 V, THD+N is 0.08% at 1 kHz, and less than 0.2%
across the audio band of 20 Hz to 20 kHz. For 30 mW into 32-loads, the THD+N is reduced to less than 0.06%
at 1 kHz, and is less than 0.3% across the audio band of 20 Hz to 20 kHz.
typical application circuit
Audio
Input
100 k
8 IN 1− 20 k
CI 100 k
1 BYPASS
CB
Audio
Input
4 IN 2− 20 k
CI
From Shutdown
Control Circuit
3 SHUTDOWN
100 k
100 k
VDD/4
+
+
Bias
Control
VDD 6
VDD
CS
VO1 7
CC
VO2 5
2
CC
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.
PRODUCTION DATA information is 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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2004, Texas Instruments Incorporated
1



etcTI TPA6102A2
TPA6102A2
50ĆmW ULTRALOWĆVOLTAGE, FIXEDĆGAIN STEREO HEADPHONE
AUDIO POWER AMPLIFIER
SLOS324B − JUNE 2000 − REVISED SEPTEMBER 2004
TA
−40°C to 85°C
AVAILABLE OPTIONS
PACKAGED DEVICE
SMALL OUTLINE (D)
MSOP (DGK)
TPA6102A2D
TPA6102A2DGK
MSOP
SYMBOLIZATION
AJN
TERMINAL
NAME
NO.
BYPASS
1
GND
IN1−
IN2−
SHUTDOWN
VDD
VO1
VO2
2
8
4
3
6
7
5
Terminal Functions
I/O DESCRIPTION
I Tap to voltage divider for internal mid-supply bias supply. BYPASS is set at VDD/4. Connect to a 0.1-µF to 1-µF
low ESR capacitor for best performance.
I GND is the ground connection.
I IN1− is the inverting input for channel 1.
I IN2− is the inverting input for channel 2.
I Active-low input. When held low, the device is placed in a low supply current mode.
I VDD is the supply voltage terminal.
O VO1 is the audio output for channel 1.
O VO2 is the audio output for channel 2.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 V
Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to VDD + 0.3 V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Operating junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 150°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
PACKAGE
D
DGK
DISSIPATION RATING TABLE
TA 25°C
POWER RATING
710 mW
DERATING FACTOR
ABOVE TA = 25°C
5.68 mW/°C
TA = 70°C
TA = 85°C
POWER RATING POWER RATING
454 mW
369 mW
469 mW
3.75 mW/°C
300 mW
244 mW
recommended operating conditions
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁSupply voltage, VDD
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁHigh-level input voltage, VIH (SHUTDOWN)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLow-level input voltage, VIL (SHUTDOWN)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOperating free-air temperature, TA
MIN MAX
1.6 3.6
60% x VDD
− 40
25% x VDD
85
UNIT
V
V
V
°C
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265



etcTI TPA6102A2
TPA6102A2
50ĆmW ULTRALOWĆVOLTAGE, FIXEDĆGAIN STEREO HEADPHONE
AUDIO POWER AMPLIFIER
SLOS324B − JUNE 2000 − REVISED SEPTEMBER 2004
dc electrical characteristics at TA = 25°C, VDD = 3.6 V (unless otherwise noted)
VOO
PSRR
IDD
IDD(SD)
|IIH|
|IIL|
ZI
PARAMETER
Output offset voltage
Power supply rejection ratio
Supply current
Supply current in SHUTDOWN mode
High-level input current (SHUTDOWN)
Low-level input current (SHUTDOWN)
Input impedance
TEST CONDITIONS
AV = 14 dB
VDD = 3 V to 3.6 V
SHUTDOWN = 3.6 V
SHUTDOWN = 0 V
VDD = 3.6 V, VI= VDD
VDD = 3.6 V, VI= 0 V
MIN TYP
5
72
0.75
50
20
MAX
40
1.5
250
1
1
UNIT
mV
dB
mA
nA
µA
µA
k
ac operating characteristics, VDD = 3.3 V, TA = 25°C, RL = 16
G
PO
THD+N
BOM
kSVR
SNR
Vn
PARAMETER
Gain
Output power (each channel)
Total harmonic distortion + noise
Maximum output power BW
Supply ripple rejection ratio
Signal-to-noise ratio
Noise output voltage (no noise weighting filter)
TEST CONDITIONS
THD 0.1%,
PO = 45 mW,
THD < 0.5%
f = 1 kHz
PO = 50 mW
f = 1 kHz
20−20 kHz
MIN TYP MAX UNIT
14 dB
50 mW
0.4%
> 20
kHz
47 dB
86 dB
45 µV(rms)
ac operating characteristics, VDD = 3.3 V, TA = 25°C, RL = 32
G
PO
THD+N
BOM
kSVR
SNR
Vn
PARAMETER
Gain
Output power (each channel)
Total harmonic distortion + noise
Maximum output power BW
Supply ripple rejection ratio
Signal-to-noise ratio
Noise output voltage (no noise weighting filter)
TEST CONDITIONS
THD 0.1%,
PO = 30 mW,
THD < 0.4%
f = 1 kHz
PO = 30 mW
f = 1 kHz
20−20 kHz
MIN TYP MAX UNIT
14 dB
35 mW
0.4%
> 20 kHz
47 dB
86 dB
50 µV(rms)
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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