Philips TDA1562Q 用户手册
2003 Feb 12
14
Philips Semiconductors
Preliminary specification
70 W high efficiency power amplifier
with diagnostic facility
with diagnostic facility
TDA1562Q; TDA1562ST;
TDA1562SD
TEST AND APPLICATION INFORMATION
handbook, full pagewidth
POWER-
STAGE
STAGE
STAT
VP*
VP*
75
k
k
Ω
10
k
k
Ω
RL =
4
4
Ω
−
+
C1
+
C1
−
FEEDBACK
CIRCUIT
TDA1562
POWER-
STAGE
STAGE
CLASS-B
CLASS-H
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
3
5
4700
µ
F
2200
µ
F
100
nF
75
k
k
Ω
15 k
Ω
reference
voltage
voltage
−
+
2
audio
source
1/2*Rs
1/2*Rs
IN
−
14
Vref
17
SGND
PRE-
AMP
PRE-
AMP
100 nF
10
µ
F
C2
+
C2
−
OUT
−
15
13
6
GND
MGL271
12
11
DIAG
OUT
+
+
VP
7
8
4700
µ
F
9
10
+
VP
VP2
VP1
PGND1
PGND2
Fig.9 Test and application circuit.