2002 Jan 14
25
Philips Semiconductors
Preliminary specification
4
×
44 W into 4
Ω
or 4
×
75 W into 2
Ω
quad BTL car radio power amplifier
TDA8591J
14 APPLICATION INFORMATION
handbook, full pagewidth
MGW452
26 dB
26 dB
26 dB
10
12
22
2
16
18
20
4
PGND1
8
3
5
26 dB
VP
VP
INTERFACE
OFFSET
DETECTION
7
PGND2
21
PGND3
24
PGND4
27
GNDHS
DIAGNOSTIC
CHARGE
PUMP
TDA8591J
1
VP1
13
VP2
15
VP3
22 nF
22 nF
OUT1
−
OUT1
+
9
11
22 nF
220 nF
22 nF
OUT2
+
OUT2
−
14 CP
6
DIAG
26 OFFCAP
19
17
22 nF
22 nF
OUT3
+
OUT3
−
25
23
2 or 4
Ω
22 nF
to microcontroller
22 nF
OUT4
−
OUT4
+
Rs
Vin4
IN4
220 nF
Rs
Vin3
IN3
SGND
CIN
220 nF
Rs
Vin2
IN2
220 nF
Rs
Vin1
IN1
220 nF
100
µ
F
(6.3 V)
2200
µ
F
(16 V)
100 nF
2 or 4
Ω
2 or 4
Ω
2 or 4
Ω
STBY
MUTE/ON
from
microcontroller
(1)
2.2
µ
F
(10 V)
mute
standby
fast mute
Fig.33 Quad BTL application without offset detection circuit.
(1) Not needed with single-pin mute control.