2002 Jan 14
5
Philips Semiconductors
Preliminary specification
4
×
44 W into 4
Ω
or 4
×
75 W into 2
Ω
quad BTL car radio power amplifier
TDA8591J
5
BLOCK DIAGRAM
MGW449
handbook, full pagewidth
26 dB
26 dB
26 dB
10
12
22
2
16
18
20
4
PGND1
8
3
5
26 dB
VP
INTERFACE
STBY
MUTE/ON
OFFSET
DETECTION
7
PGND2
21
PGND3
24
PGND4
27
GNDHS
DIAGNOSTIC
CHARGE
PUMP
TDA8591J
1
VP1
VP
13
VP2
15
VP3
OUT1
−
OUT1
+
9
11
OUT2
+
OUT2
−
14
CP
6
DIAG
26
OFFCAP
19
17
OUT3
+
OUT3
−
25
23
OUT4
−
OUT4
+
IN4
IN3
SGND
CIN
IN2
IN1
Fig.1 Block diagram.