Philips TDA8950 - Page 29

TDA8950_2 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 02 — 11 June 2009 29 of 39
NXP Semiconductors
TDA8950
2 × 150 W class-D power amplifier
V
P
= ±35 V, f
osc
= 345 kHz, V
i
= 100 mV, C
i
= 330 pF, L
LC
= 15 µH, C
LC
= 680 nF.
(1) 1 × 8 Ω BTL configuration.
(2) 2 × 4 Ω SE configuration.
(3) 2 × 6 Ω SE configuration.
(4) 2 × 8 Ω SE configuration.
Fig 23. Closed-loop voltage gain as a function of frequency
Ripple on V
DD
, short on input pins.
V
P
= ±35 V, f
osc
= 345 kHz, R
L
= 4 Ω, V
ripple
= 2 V (p-p).
(1) Mute mode.
(2) Operating mode.
(3) Standby mode.
Fig 24. SVRR as a function of ripple frequency, ripple on V
DD
001aai709
f
i
(Hz)
10 10
5
10
4
10
2
10
3
30
35
25
40
45
G
v(cl)
(dB)
20
(1)
(2)
(3)
(4)
001aai710
f
ripple
(Hz)
10 10
5
10
4
10
2
10
3
−100
−80
−60
−40
−20
SVRR
(dB)
−140
−120
(3)
(2)
(1)