TDA8922B NXP Semiconductors, TDA8922B Datasheet - Page 23

• Manufacturer Part Number: TDA8922B
• Description: The TDA8922B is a high efficiency class-D audio power amplifier with very lowdissipation
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 13357
Preliminary data sheet
Fig 18. Power dissipation as a function of total output
Fig 20. Output power as a function of supply voltage;
(1) V
(2) V
(3) V
(1) 1
(2) 2
(3) 2
P
(W)
(W)
P
tot
120
o
20
16
12
80
40
8
4
0
0
10
f = 1 kHz.
power.
(THD + N)/S = 0.5 %; f = 1 kHz.
(THD + N)/S = 0.5 %.
10
P
P
P
2
= 21 V; 1
= 26 V; 2
= 26 V; 2
8
6
8
BTL configuration.
SE configuration.
SE configuration.
10
15
1
8
6
8
20
1
BTL configuration.
SE configuration.
SE configuration.
(1)
10
25
10
30
(3)
(1)
(2)
001aab207
001aab209
2
(2)
(3)
P
V
o
S
(W)
(V)
10
Rev. 01 — 1 October 2004
35
3
Fig 19. Efficiency as a function of total output power.
Fig 21. Output power as a function of supply voltage;
(1) V
(2) V
(3) V
(1) 1
(2) 2
(3) 2
(W)
(%)
P
100
200
160
120
o
80
60
40
20
80
40
0
0
f = 1 kHz.
(THD + N)/S = 10 %; f = 1 kHz.
(THD + N)/S = 10 %.
10
0
P
P
P
= 26 V; 2
= 26 V; 2
= 21 V; 1
8
6
8
BTL configuration.
SE configuration.
SE configuration.
40
15
2
8
6
8
(1)
80
20
50 W class-D power amplifier
SE configuration.
SE configuration.
BTL configuration.
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
(1)
(3)
(2)
120
25
TDA8922B
160
30
(2)
(3)
001aab208
001aab210
P
V
o
S
(W)
(V)
200
35
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