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TPA3140D2 Scheda tecnica(PDF) 10 Page - Texas Instruments

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Il numero della parte TPA3140D2
Spiegazioni elettronici  10-W Inductor Free Stereo (BTL) Class-D Audio Amplifier
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

TPA3140D2 Scheda tecnica(HTML) 10 Page - Texas Instruments

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Total Output Power (W)
0
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
0
10
20
30
40
50
60
70
80
90
100
D015
PVcc = 6V
PVcc = 13V
PVcc = 14.4V
Output Power (W)
0.01
0.1
1
10
10m
100m
1
10
20
20m
50m
200m 500m
2
5
D013
20 Hz
1 kHz
Supply Voltage (V)
4
5
6
7
8
9
10
11
12
13
14
15
0
3
6
9
12
15
18
21
24
27
30
D014
TPA3140D2
SLOS882A – JANUARY 2015 – REVISED APRIL 2015
www.ti.com
Typical Characteristics (continued)
All Measurements taken at 20dB closed loop gain, 1-kHz audio, TA = 25°C unless otherwise noted. Measurements were
made with AES17 filter using the TPA3140D2 EVM, which is available at ti.com.
AVCC=PVCC = 13 V, Load = 4
Ω + 33 µH, 20 Hz, 1 kHz, 6.7 kHz
AVCC=PVCC = 4.5 V to 14.4 V, Load = 4
Ω + 33 µH, AGL + PLIM
disable (LIMRATE = GND, LIMTHRES = GVDD)
Figure 13. Total Harmonic Distortion + Noise vs Output
Figure 14. Output Power vs Supply Voltage, 1SPW (PBTL)
Power, 1SPW (PBTL)
AVCC=PVCC = 6 V, 13 V, 14.4 V, Load = 4
Ω + 33 µH, AGL + PLIM disable (LIMRATE = GND, LIMTHRES =
GVDD)
Figure 15. Efficiency vs Output Power, 1SPW (PBTL)
9 Parameter Measurement Information
All parameters are measured according to the conditions described in the Specifications and Typical
Characteristics.
Most audio analyzers will not give correct readings of Class-D amplifiers’ performance due to their sensitivity to
out of band noise present at the amplifier output. An AES-17 pre analyzer filter is recommended to use for Class-
D amplifier measurements. In absence of such filter, a 30kHz low-pass filter (10
Ω + 47nF) can be used to reduce
the out of band noise remaining on the amplifier outputs.
10
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Copyright © 2015, Texas Instruments Incorporated
Product Folder Links: TPA3140D2


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