Philips Semiconductors
Preliminary specification
Power stage 2 × 50 W class-D audio
amplifier
TDA8926
MLD615
MLD616
45
45
handbook, halfpage
handbook, halfpage
G
G
(dB)
(dB)
40
40
35
30
25
(1)
35
(1)
(2)
(3)
30
(2)
25
(3)
20
20
10
2
3
4
5
2
3
4
5
10
10
10
10
10
10
10
10
10
f (Hz)
f (Hz)
i
i
VP = ±21 V; Vi = 100 mV; Rs = 10 kΩ/Ci = 330 pF.
(1) 1 × 8 Ω BTL.
VP = ±21 V; Vi = 100 mV; Rs = 0 Ω.
(1) 1 × 8 Ω BTL.
(2) 2 × 8 Ω SE.
(2) 2 × 8 Ω SE.
(3) 2 × 4 Ω SE.
(3) 2 × 4 Ω SE.
Fig.21 Gain as a function of input frequency.
Fig.22 Gain as a function of input frequency.
MLD617
MLD618
0
0
handbook, halfpage
handbook, halfpage
SVRR
(dB)
SVRR
(dB)
−20
−20
−40
−60
−40
−60
(1)
(1)
(2)
(3)
(2)
(3)
−80
−80
−100
−100
2
3
4
5
10
10
10
10
10
0
1
2
3
4
5
f (Hz)
i
V
(V)
ripple(p-p)
VP = ±21 V; Vripple(p-p) = 2 V.
VP = ±21 V.
(1) Both supply lines in antiphase.
(2) Both supply lines in phase.
(3) One supply line rippled.
(1) fripple = 1 kHz.
(2) fripple = 100 Hz.
(3) fripple = 10 Hz.
Fig.23 Supply voltage ripple rejection as a function
of input frequency.
Fig.24 Supply voltage ripple rejection as a function
of ripple voltage (peak-to-peak value).
2002 Oct 10
23
NXP [ NXP ]
