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TPA2028D1 Datenblatt(PDF) 5 Page - Texas Instruments

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Teilenummer TPA2028D1
Bauteilbeschribung  3-W Mono Class-D Audio Amplifier with Fast Gain Ramp SmartGain??AGC/DRC
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Hersteller  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPA2028D1 Datenblatt(HTML) 5 Page - Texas Instruments

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TPA2028D1
IN+
IN–
OUT+
OUT–
V
DD
V
DD
GND
C
I
C
I
Measurement
Output
+
+
Load
30kHz
Low-Pass
Filter
Measurement
Input
+
1 F
m
TPA2028D1
www.ti.com
SLOS660 – JANUARY 2010
OPERATING CHARACTERISTICS
at TA = 25°C, VDD = 3.6V, EN = 1.3 V, RL = 8 Ω +33 mH, and AV = 6 dB (unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
kSVR
power-supply ripple rejection ratio
VDD = 3.6 Vdc with ac of 200 mVPP at 217 Hz
–70
dB
faud_in = 1 kHz; PO = 550 mW; VDD = 3.6 V
0.1%
faud_in = 1 kHz; PO = 1.25 W; VDD = 5 V
0.1%
THD+N
Total harmonic distortion + noise
faud_in = 1 kHz; PO = 710 mW; VDD = 3.6 V
1%
faud_in = 1 kHz; PO = 1.4 W; VDD = 5 V
1%
NfonF
Output integrated noise
Av = 6 dB
42
mV
NfoA
Output integrated noise
Av = 6 dB floor, A-weighted
30
mV
FR
Frequency response
Av = 6 dB
20
20000
Hz
THD+N = 10%, VDD = 5 V, RL = 8 Ω
1.72
W
THD+N = 10%, VDD = 3.6 V, RL = 8 Ω
880
mW
THD+N = 1%, VDD = 5 V, RL = 8 Ω
1.4
W
Pomax
Maximum output power
THD+N = 1% , VDD = 3.6 V, RL = 8 Ω
710
mW
THD+N = 1% , VDD = 5 V, RL = 4 Ω
2.5
W
THD+N = 10% , VDD = 5 V, RL = 4 Ω
3
W
THD+N = 1%, VDD = 3.6 V, RL = 8 Ω, PO= 0.71 W
91%
h
Efficiency
THD+N = 1%, VDD = 5 V, RL = 8 Ω, PO = 1.4 W
93%
TEST SET-UP FOR GRAPHS
(1)
All measurements were taken with a 1-mF CI (unless otherwise noted.)
(2)
A 33-mH inductor was placed in series with the load resistor to emulate a small speaker for efficiency measurements.
(3)
The 30-kHz low-pass filter is required, even if the analyzer has an internal low-pass filter. An RC low-pass filter (1 k
4.7 nF) is used on each output for the data sheet graphs.
Copyright © 2010, Texas Instruments Incorporated
5
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