Philips Semiconductors
Preliminary speci铿乧ation
4 x 40 W BTL quad car radio power
ampli铿乪r
Test information
TDA8571J
Figures 8 to 13 have the following conditions: V
P
= 14.4 V; R
L
= 4
鈩?
f = 1 kHz; 80 kHz filter used; unless otherwise
specified.
handbook, halfpage
300
MGM566
handbook, halfpage
80
MGM567
IP
(mA)
200
Po
(W)
60
40
(1)
100
20
(2)
(3)
0
0
4
8
12
16
VP (V)
20
0
8
10
12
14
16
VP (V)
18
(1) EIAJ; 100 Hz.
(2) THD + N = 10%.
(3) THD + N = 0.5%.
Fig.8 I
P
as a function of V
P
.
Fig.9 P
o
as a function of V
P
.
handbook, halfpage
10
MGM568
handbook, halfpage
10
MGM569
THD
+
N
(%)
1
THD
+
N
(%)
1
(1)
(1)
(2)
10
鈭?
(2)
(3)
10
鈭?
10
鈭?
10
鈭?
10
鈭?
1
10
Po (W)
10
2
10
鈭?
10
10
2
10
3
10
4
f (Hz)
10
5
(1) f = 10 kHz.
(2) f = 1 kHz.
(3) f = 100 Hz.
(1) P
o
= 1 W.
(2) P
o
= 10 W.
Fig.10 THD + N as a function of P
o
.
Fig.11 THD + N as a function of frequency.
1998 Mar 13
11