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2004 May 05 18
Philips Semiconductors Preliminary specification
Power stage 2 x 10 or 1 x 20 W class-D
audio amplifier
TDA8928J
handbook, halfpage
0
100
20
40
60
80
MGX387
10
−1
10
−2
P
o
(W)
S/N
(dB)
11010
2
Fig.13 S/N as function of output power.
2 × 8 Ω SE; V
P
= ±12.5 V.
handbook, halfpage
−100
0
−80
−60
−40
−20
MGX388
10
2
10
f
i
(Hz)
α
cs
(dB)
10
3
10
4
10
5
(1)
(2)
Fig.14 Channel separation as function of
frequency.
2 × 8 Ω SE; V
P
= ±12.5 V.
(1) P
o
=1W.
(2) P
o
=10W.
handbook, halfpage
10
35
15
20
25
30
MDB624
10
2
10
f
i
(Hz)
G
(dB)
10
3
10
4
10
5
Fig.15 Gain as function of frequency.
2 × 8 Ω SE; V
P
= ±12.5 V; V
i
= 100 mV.
handbook, halfpage
10
(1)
20
24
4
8
12
16
20
12
P
o
(W)
V
P
(V)
14 16 18
MGX389
(2)
Fig.16 Output power as function of supply voltage.
THD + N = 10 %; f
i
= 1 kHz.
(1) 2 × 8 Ω SE.
(2) 2 × 16 Ω SE.