TDA8566 데이터 시트보기 (PDF) - Philips Electronics
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TDA8566
Philips Electronics
TDA8566 Datasheet PDF : 16 Pages
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Philips Semiconductors
2 × 40 W/2 Ω stereo BTL car radio power amplifier
with differential inputs and diagnostic outputs
TEST AND APPLICATION INFORMATION
Objective specification
TDA8566TH
handbook, full pagewidth
Vin1
Vin2
+
Vmode _
20
+8
Rs/2 220 nF
60
kΩ
Rs/2
60
220 nF
_
kΩ
9
Vref +
10 −
Rs/2
220 nF
+2
60
kΩ
Rs/2
60
220 nF
kΩ
_3
100
2200
nF µF/16V
+ VP =
_ 14.4 V
12
+
−
19
13 +
TDA8566TH
RL1
−
15 _
VP VP
+
CLIP
11
DETECTOR
10 10
kΩ kΩ
CLIP
DIAGNOSTIC 1
INTERFACE
+
16 +
−
RL2
−
+
14
18 _
17
DIAG
MGU359
Fig.6 Stereo BTL test diagram.
Application information
DIAGNOSTIC OUTPUT
Special care must be taken in the PCB layout to separate
pin CLIP from pins IN1+, IN1−, IN2+ and IN2− to minimize
the crosstalk between the CLIP output and the inputs.
MODE SELECT SWITCH
To avoid switch-on plops, it is advisable to keep the
amplifier in the mute mode during ≥150 ms (charging of
the input capacitors at pins IN1+, IN1−, IN2+ and IN2−).
The circuit in Fig.7 slowly ramps-up the voltage at the
mode select switch pin when switching on and results in
fast muting when switching off.
+Vsupply
handbook, halfpage
S
10 kΩ
100 Ω
47 µF
mode
select
switch
100 kΩ
MGD102
Fig.7 Mode select switch circuit.
2001 Apr 24
10
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