Philips TDA8950 - Page 30

TDA8950_2 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 02 — 11 June 2009 30 of 39
NXP Semiconductors
TDA8950
2 × 150 W class-D power amplifier
Ripple on V
SS
, 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 25. SVRR as a function of ripple frequency, ripple on V
SS
V
P
= ±35 V, f
osc
= 345 kHz.
(1) Mode voltage down.
(2) Mode voltage up.
Fig 26. Output voltage as a function of mode voltage
001aai711
f
ripple
(Hz)
10 10
6
10
4
10
2
10
3
−100
−80
−60
−40
−20
SVRR
(dB)
−140
−120
(3)
(1)
(2)
V
MODE
(V)
0 54231 4.53.51.5 2.50.5
001aai712
10
−4
10
−5
10
−3
10
−2
10
−1
10
1
V
o
(V)
10
−6
(1)
(2)