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TDA8926 Datasheet, PDF (21/32 Pages) NXP Semiconductors – Power stage 2 x 50 W class-D audio amplifier
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Philips Semiconductors
Power stage 2 × 50 W class-D audio
amplifier
Preliminary specification
TDA8926
102
handbook, halfpage
THD+N
(%)
10
MGU860
1
(1)
10−1
(2)
10−2
(3)
10−3
10−2
10−1
1
10
102
103
Po (W)
1 × 8 Ω BTL; VP = ±21 V.
(1) 10 kHz.
(2) 1 kHz.
(3) 100 Hz.
Fig.13 Total harmonic distortion plus noise as a
function of output power.
102
handbook, halfpage
THD+N
(%)
10
1
10−1
10−2
10−3
10
102
MLD632
(1)
(2)
103
104
105
fi (Hz)
1 × 8 Ω BTL; VP = ±21 V.
(1) Po = 10 W.
(2) Po = 1 W.
Fig.14 Total harmonic distortion plus noise as a
function of input frequency.
25
handbook, halfpage
P
(W)
20
MGU855
15
(1)
(2)
10
(3)
5
0
10−2
10−1
1
VP = ±21 V; fi = 1 kHz.
(1) 2 × 4 Ω SE.
(2) 1 × 8 Ω BTL.
(3) 2 × 8 Ω SE.
10
102
103
Po (W)
Fig.15 Power dissipation as a function of output
power.
handbook1,0h0alfpage
η
(%)
(3)
80
MGU856
(1)
(2)
60
40
20
0
0
20
40
60
80
100
Po (W)
VP = ±21 V; fi = 1 kHz.
(1) 2 × 4 Ω SE.
(2) 1 × 8 Ω BTL.
(3) 2 × 8 Ω SE.
Fig.16 Efficiency as a function of output power.
2002 Oct 10
21
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