Philips Semiconductors
Preliminary specification
Power stage 2 × 50 W class-D audio
amplifier
TDA8926
MGU860
MLD632
2
2
10
10
handbook, halfpage
THD+N
handbook, halfpage
THD+N
(%)
(%)
10
10
1
1
(1)
(1)
−1
−1
10
10
(2)
(2)
−2
−2
10
10
(3)
−3
10
−3
10
10
2
3
4
5
−2
−1
2
3
10
10
10
10
10
10
1
10
10
10
f (Hz)
P
(W)
i
o
1 × 8 Ω BTL; VP = ±21 V.
(1) 10 kHz.
1 × 8 Ω BTL; VP = ±21 V.
(2) 1 kHz.
(1) Po = 10 W.
(3) 100 Hz.
(2)
Po = 1 W.
Fig.13 Total harmonic distortion plus noise as a
function of output power.
Fig.14 Total harmonic distortion plus noise as a
function of input frequency.
MGU856
MGU855
25
100
handbook, halfpage
handbook, halfpage
η
P
(%)
(3)
(1)
(W)
(2)
80
20
15
60
40
(1)
(2)
10
5
(3)
20
0
0
10
−2
−1
2
3
0
20
40
60
80
100
P (W)
o
10
1
10
10
10
(W)
P
o
VP = ±21 V; fi = 1 kHz.
(1) 2 × 4 Ω SE.
VP = ±21 V; fi = 1 kHz.
(1) 2 × 4 Ω SE.
(2) 1 × 8 Ω BTL.
(3) 2 × 8 Ω SE.
(2) 1 × 8 Ω BTL.
(3) 2 × 8 Ω SE.
Fig.15 Power dissipation as a function of output
power.
Fig.16 Efficiency as a function of output power.
2002 Oct 10
21
NXP [ NXP ]
