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TPA2014D1RGPT Scheda tecnica(PDF) 7 Page - Texas Instruments

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Il numero della parte TPA2014D1RGPT
Spiegazioni elettronici  1.5-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

TPA2014D1RGPT Scheda tecnica(HTML) 7 Page - Texas Instruments

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CLASS D AMPLIFIER AC CHARACTERISTICS
TPA2014D1
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
TPA2014D1
www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008
TA = 25°C, VDD = 3.6V, RL = 8 Ω + 33 µH, L = 6.2 µH, VCC = 5 V, Gain = 2 V/V(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
KSVR
Output referred power supply
VDD = 3.6 V, VCC = 5, 200 mVPP ripple, f = 217 Hz
–91
dB
Class-D
rejection ratio
f = 1 kHz, Po = 1.2 W, VCC = 5 V
1%
THD+N
Total harmonic distortion + noise
f = 1 kHz, Po = 1.5 W, VCC = 5 V
10%
Class-D
f = 1 kHz, Po = 1 W, VCC = 5 V
0.1%
Vn
Output integrated noise floor
Av = 6 dB (2V/V)
31
Class-D
µVrms
Output integrated noise floor
Av = 6 dB (2V/V)
23
A-weighted
THD+N = 10%, VCC = 5 V, VDD = 3.6V ,
1.5
PO
Maximum output power
THD+N = 1%, VCC = 5 V, VDD = 3.6V ,
1.2
W
THD+N = 0.1%, VCC = 5 V, VDD = 3.6V ,
1
TEST SET-UP FOR GRAPHS
(1)
CI was shorted for any common-mode input voltage measurement. All other measurements were taken with a 1-µF CI
(unless otherwise noted).
(2)
A 33-
µH 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
Ω,
4.7-nF) is used on each output for the data sheet graphs.
(4)
L = 6.2
µH is used for the boost converter unless otherwise noted.
Copyright © 2008, Texas Instruments Incorporated
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