TDA8922 PHILIPS [NXP Semiconductors], TDA8922 Datasheet - Page 24

• Manufacturer Part Number: TDA8922
• Description: 2 x 25 W class-D power amplifier
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
2003 Mar 20
handbook, halfpage
handbook, halfpage
2
f
(1) 2
(2) 2
(3) 1
Fig.18 Power dissipation as a function of output
THD + N = 0.5%; f
(1) 1
(2) 2
(3) 2
Fig.20 Output power as a function of supply
i
P diss
= 1 kHz.
(W)
(W)
P o
100
10
80
60
40
20
25 W class-D power amplifier
8
6
4
2
0
0
10
10
4
8
8
8
4
8
power.
voltage.
2
SE, V
SE, V
BTL, V
BTL.
SE.
SE.
15
P
P
i
10
P
= 1 kHz.
= 15 V.
= 20 V.
= 15 V.
1
20
(1)
(2)
1
25
10
30
P o (W)
(3)
(1)
V DD (V)
(2)
(3)
MGX332
MGX336
10
35
2
24
handbook, halfpage
handbook, halfpage
f
(1) 2
(2) 2
(3) 1
THD + N = 10%; f
(1) 1
(2) 2
(3) 2
Fig.21 Output power as a function of supply
i
= 1 kHz.
(%)
(W)
P o
Fig.19 Efficiency as a function of output power.
100
100
80
60
40
20
80
60
40
20
0
0
10
0
8
4
8
8
4
8
voltage.
SE, V
SE, V
BTL, V
BTL.
SE.
SE.
20
15
i
P
P
= 1 kHz.
(1)
P
= 20 V.
= 15 V.
= 15 V.
(2)
40
20
(1)
(2)
(3)
60
25
Objective specification
80
30
TDA8922
(3)
V DD (V)
P o (W)
MGX333
MGX337
100
35