TDA8932B_3
© NXP B.V. 21 June 2007. All rights reserved.
Product data sheet
Rev. 03— 21 June 2007
30 of 48
NXP Semiconductors
TDA8932B
Class-D audio amplifier
V
i
= 100 mV (RMS); R
i
= 0
Ω
; Cse = 1000
µ
F
(1) V
P
= 30 V; R
L
= 2
×
8
Ω
(2) V
P
= 22 V; R
L
= 2
×
4
Ω
V
ripple
= 500 mV (RMS) referenced to ground;
R
i
= 0
Ω
(shorted input)
(1) V
P
= 30 V; R
L
= 2
×
8
Ω
(2) V
P
= 22 V; R
L
= 2
×
4
Ω
Fig 15. Gain as a function of frequency
Fig 16. Supply voltage ripple rejection as a function of
frequency
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20
30
40
G
v
(dB)
10
f
i
(Hz)
10
10
5
10
4
10
2
10
3
(1)
(2)
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−
60
−
40
−
80
−
20
0
SVRR
(dB)
−
100
f
i
(Hz)
10
10
5
10
4
10
2
10
3
(1)
(2)
R
i
= 0
Ω
; 20 kHz brick-wall filter AES17
(1) V
P
= 22 V; R
L
= 2
×
4
Ω
(2) V
P
= 30 V; R
L
= 2
×
8
Ω
P
o
= 1 W; C
HVPREF
= 47
µ
F
(1) V
P
= 22 V; R
L
= 2
×
4
Ω
(2) V
P
= 30 V; R
L
= 2
×
8
Ω
Fig 17. Signal-to-noise ratio as a function of output
power per channel
Fig 18. Channel separation as a function of frequency
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P
o
(W/channel)
10
−
2
10
2
10
10
−
1
1
40
80
120
S/N
(dB)
0
(2)
(1)
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−
60
−
40
−
80
−
20
0
α
cs
(dB)
−
100
f
i
(Hz)
10
10
5
10
4
10
2
10
3
(1)
(2)
