2003 Feb 12 14
Philips Semiconductors Preliminary specification
70 W high efficiency power amplifier
with diagnostic facility TDA1562Q; TDA1562ST;
TDA1562SD
TEST AND APPLICATION INFORMATION
handbook, full pagewidth
POWER-
STAGE
STAT
VP*
VP*
75
kΩ10
kΩRL =
4 Ω
−
+
C1+C1−
FEEDBACK
CIRCUIT
TDA1562
POWER-
STAGE
CLASS-B
CLASS-H
FAST MUTE
TEMPERATURE
SENSOR LOAD DUMP
PROTECTION
STANDBY
MUTE
ON
LOAD
DETECTOR DYNAMIC
DISTORTION
DETECTOR
DIAGNOSTIC
INTERFACE
TEMPERATURE
PROTECTION
CURRENT
PROTECTION
LIFT-SUPPLY
LIFT-SUPPLY
disable
disable
16
MODE 4
1
IN+
100 nF
35
4700 µF2200
µF
100
nF
75
kΩ
15 kΩ
reference
voltage
−
+
2
audio
source
1/2*Rs
1/2*Rs
IN−
14
Vref
17
SGND
PRE-
AMP
PRE-
AMP
100 nF
10 µF
C2+C2−
OUT−
15 13 6
GND
MGL271
12
11
DIAG
OUT++ VP
7
8
4700 µF
910
+ VP
VP2
VP1
PGND1 PGND2