2002 Jan 14
17
Philips Semiconductors
Preliminary specification
4
×
44 W into 4
Ω
or 4
×
75 W into 2
Ω
quad BTL car radio power amplifier
TDA8591J
12.1
Performance curves
Conditions for Figs 12 to 28 unless otherwise specified are: V
P
= 14.4 V; R
L
= 4
Ω
: f = 1 kHz; 80 kHz filter.
handbook, halfpage
0
300
200
100
0
30
MGW457
10
20
VP (V)
IP
(mA)
Fig.12 Supply current as a function of supply
voltage.
R
L
=
∞
.
handbook, halfpage
20
30
22
24
26
28
MGW458
10
10
2
10
3
10
4
10
5
f (Hz)
10
6
Gv
(dB)
Fig.13 Voltage gain as a function of frequency.
V
i
= 10 mV.
handbook, halfpage
9
80
40
60
20
0
11
12
10
18
MGW459
13
14
15
16
17
VP (V)
Po
(W)
(1)
(2)
(3)
Fig.14 Output power as a function of supply
voltage; R
L
= 4
Ω
.
One channel driven.
(1) EIAJ values.
(2) THD + N = 10%.
(3) THD + N = 1%.
handbook, halfpage
9
120
40
60
80
100
20
0
11
12
10
18
MGW460
13
14
15
16
17
VP (V)
Po
(W)
(1)
(2)
(3)
Fig.15 Output power as a function of supply
voltage; R
L
= 2
Ω
.
One channel driven.
(1) EIAJ values.
(2) THD + N = 10%.
(3) THD + N = 1%.
