TDA8922 PHILIPS [NXP Semiconductors], TDA8922 Datasheet - Page 26

• Manufacturer Part Number: TDA8922
• Description: 2 x 25 W class-D power amplifier
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
2003 Mar 20
handbook, halfpage
handbook, halfpage
2
R
Fig.26 Quiescent current as a function of supply
V
(1) Both supply lines in phase.
(2) Both supply lines in anti-phase.
(3) One supply line rippled.
SVRR
(dB)
(mA)
P
L
I q
Fig.28 SVRR as a function of input frequency.
= .
= 20 V; V
100
100
20
40
60
80
80
60
40
20
25 W class-D power amplifier
0
0
10
0
voltage.
ripple
5
= 2 V (p-p) with respect to ground.
10
10
2
15
10
(1)
(2)
(3)
3
20
25
10
4
V DD (V)
f i (Hz)
30
MGX338
MGX346
10
35
5
26
handbook, halfpage
handbook, halfpage
SVRR)
R
Fig.27 Clock frequency as a function of supply
V
(1) f
(2) f
(3) f
(dB)
(kHz)
P
L
f clk
= .
= 20 V; V
290
100
320
310
300
ripple
ripple
ripple
20
40
60
80
0
Fig.29 SVRR as a function of V
0
0
= 1 kHz.
= 100 Hz.
= 10 Hz.
voltage.
ripple
5
1
with respect to ground (in phase).
10
2
15
(1)
(2)
(3)
20
3
V ripple(p-p) (V)
Objective specification
25
V DD (V)
4
ripple(p-p)
TDA8922
30
MGX339
MGX347
35
5
.