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參數(shù)資料
| 型號： | 935201690112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 55 W, 2 CHANNEL, AUDIO AMPLIFIER, PZIP17 |
| 封裝： | POWER, PLASTIC, SOT-243-1, DIL-BENT-SIL, 17 PIN |
| 文件頁數(shù)： | 16/16頁 |
| 文件大?。?/td> | 149K |
| 代理商： | 935201690112 |
2000 Jan 28
9
Philips Semiconductors
Product specication
2
× 40 W/2 stereo BTL car radio power amplier
with differential inputs and diagnostic outputs
TDA8566Q
TEST AND APPLICATION INFORMATION
handbook, full pagewidth
+
+
Rs/2
Vmode
Rs/2
Vin2
Vin1
10
k
10
k
RL2
RL1
220 nF
60
k
60
k
+
+
220 nF
60
k
60
k
CLIP
DETECTOR
DIAGNOSTIC
INTERFACE
VP
TDA8566Q
Vref
VP
100
nF
VP =
14.4 V
2200
F/16V
CLIP
DIAG
MGD104
1
+
_
+
_
+
_
+
_
+
_
6
8
4
15
10
12
711
14
13
5
2
3
16
17
Fig.6 Stereo BTL test diagram.
Application notes
DIAGNOSTIC OUTPUT
Special care must be taken in the PCB layout to separate
pin 4 from pins 1, 2, 16 and 17 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 1, 2, 16 and 17). 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.
handbook, halfpage
100 k
MGD102
47
F
10 k
S
100
mode
select
switch
+Vsupply
Fig.7 Mode select switch circuit.
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