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Philips Semiconductors
Power stage 2 x 15 to 25 W class-D
audio amplifier
100
handbook, halfpage
S/N
(dB)
80
60
40
20
0
−2
−1
10
10
2 × 8 Ω SE; V
= ±15 V.
P
Fig.13 S/N as function of output power.
35
handbook, halfpage
G
(dB)
30
25
20
15
10
2
10
10
2 × 8 Ω SE; V
= ±15 V;
P
V
= 100 mV.
i
Fig.15 Gain as function of frequency.
2004 May 06
MDB621
2
1
10
10
P o (W)
MDB624
3
4
5
10
10
10
f i (Hz)
0
handbook, halfpage
α
cs
(dB)
−20
−40
−60
(1)
(2)
−80
−100
10
10
2 × 8 Ω SE; V
= ±15 V.
P
(1) P
= 1 W.
o
(2) P
= 10 W.
o
Fig.14 Channel separation as function of
frequency.
25
handbook, halfpage
P o
(W)
21
17
13
9
5
10
12
2 × 8 Ω SE; f
= 1 kHz.
i
(1) THD + N = 10 %.
(2) THD + N = 1 %.
Fig.16 Output power as function of supply voltage.
18
Product specification
TDA8925
2
3
4
10
10
f i (Hz)
(1)
(2)
14
16
18
V P (V)
MDB623
5
10
MDB625
20
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