TDA8922 PHILIPS [NXP Semiconductors], TDA8922 Datasheet - Page 27

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

Philips Semiconductors
2003 Mar 20
V ripple(p-p)
handbook, halfpage
handbook, halfpage
THD
2
3000 F per supply line; f
(1) 1
(2) 1
Fig.30 Supply voltage ripple as a function of output
V
(1) 10 kHz.
(2) 1 kHz.
(3) 100 Hz.
(V)
(%)
Fig.32 THD + N as a function of clock frequency.
P
10
10
10
= 20 V; P
10
10
N
25 W class-D power amplifier
8
6
4
2
0
1
10
1
2
3
100
4
8
power.
2
SE, V
SE, V
o
= 1 W into 8 .
200
P
P
10
= 15 V.
= 20 V.
1
i
= 10 Hz.
300
1
(1)
(2)
(3)
400
(1)
(2)
f clk (kHz)
10
500
P o (W)
MGX334
MGX342
600
10
2
27
3000 F per supply line.
(1) P
(2) P
V ripple(p-p)
handbook, halfpage
handbook, halfpage
Fig.31 Supply voltage ripple as a function of input
V
Fig.33 Quiescent current as a function of clock
(V)
(mA)
o
o
P
I q
= 10 W into 1
= 10 W into 1
= 20 V; R
150
120
10
90
60
30
8
6
4
2
0
0
100
10
frequency.
frequency.
(2)
L
(1)
= .
200
4
8
SE, V
SE, V
10
2
300
P
P
= 15 V.
= 20 V.
400
10
Objective specification
3
f clk (kHz)
500
f i (Hz)
TDA8922
MGX335
MGX344
600
10
4