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| TDA8932B_15 Datasheet, PDF (20/48 Pages) NXP Semiconductors – Class-D audio amplifier | |||
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NXP Semiconductors
TDA8932B
Class-D audio ampliï¬er
Table 12. SE characteristics â¦continued
VP = 22 V; RL = 2 à 4 â¦; fi = 1 kHz; fosc = 320 kHz; Rs < 0.1 â¦[1]; Tamb = 25 °C; unless otherwise speciï¬ed.
Symbol Parameter
Conditions
Min Typ Max
CMRR common mode rejection ratio
Vi(cm) = 1 V (RMS)
-
75
-
ηpo
output power efï¬ciency
Po = 15 W
VP = 22 V; RL = 4 â¦
90
92
-
VP = 30 V; RL = 8 â¦
91
93
-
Po(RMS) RMS output power
continuous time output power per
[5]
channel
RL = 4 â¦; VP = 22 V
THD+N = 0.5 %; fi = 1 kHz
10.9 12.1 -
THD+N = 0.5 %; fi = 100 Hz
-
12.1 -
THD+N = 10 %; fi = 1 kHz
13.8 15.3 -
THD+N = 10 %; fi = 100 Hz
-
15.3 -
RL = 8 â¦; VP = 30 V
THD+N = 0.5 %; fi = 1 kHz
11.1 12.3 -
THD+N = 0.5 %; fi = 100 Hz
-
12.3 -
THD+N = 10 %; fi = 1 kHz
14.0 15.5 -
THD+N = 10 %; fi = 100 Hz
-
15.5 -
short time output power per channel [5]
RL = 4 â¦; VP = 29 V
THD+N = 0.5 %
19.0 21.1 -
THD+N = 10 %
23.8 26.5 -
[1] Rs is the series resistance of inductor and capacitor of low-pass LC ï¬lter in the application.
[2] THD+N is measured in a bandwidth of 20 Hz to 20 kHz, AES17 brick wall.
[3] Maximum Vripple = 2 V (p-p); Rs = 0 â¦.
[4] B = 20 Hz to 20 kHz, AES17 brick wall.
[5] Output power is measured indirectly; based on RDSon measurement.
Two layer application board (55 mm à 45 mm), 35 µm copper, FR4 base material in free air with natural convection.
Unit
dB
%
%
W
W
W
W
W
W
W
W
W
W
Table 13. BTL characteristics
VP = 22 V; RL = 8 â¦; fi = 1 kHz; fosc = 320 kHz; Rs < 0.1 â¦[1]; Tamb = 25 °C; unless otherwise speciï¬ed.
Symbol Parameter
Conditions
Min Typ Max Unit
THD+N total harmonic
distortion-plus-noise
Gv(cl)
SVRR
closed-loop voltage gain
supply voltage rejection ratio
Po = 1 W
fi = 1 kHz
fi = 6 kHz
Operating mode
[2]
-
-
35
[3]
0.007 0.1 %
0.05 0.1 %
36
37
dB
|Zi|
input impedance
fi = 100 Hz
fi = 1000 Hz
sleep; fi = 100 Hz
differential
-
75
-
dB
70
75
-
dB
[3] -
80
-
dB
35
50
kâ¦
TDA8932B_4
Product data sheet
Rev. 04 â 18 December 2008
© NXP B.V. 2008. All rights reserved.
20 of 48
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