參數(shù)資料
型號： LA4906
廠商： Sanyo Electric Co.,Ltd.
元件分類： 音頻放大器
英文描述： 17-W, 2-Channel BTL AF High-Efficiency Power Amplifier for Car Audio Systems
中文描述： 17鎢，雙通道橋接自動對焦高效率數(shù)字功放汽車音響系統(tǒng)
文件頁數(shù)： 4/10頁
文件大小： 362K
代理商： LA4906
Equivalent Circuit Block Diagram
No. 5714-4/10
LA4906
Pin Voltages
(At V
CC
= 13.2 V, with 5 V applied to STBY through a 10 k
resistor, using a digital voltmeter)
Pin No.
1
2
3
4
5
6
7
8
Pin
IN2
Pre - GND
IN1
BEEP
PWR - GND 1
–OUT1
+OUT1
C
Pin voltage (V)
1.36
0
1.36
1.36
0
2.03
2.03
13.0
Pin No.
9
10
11
12
13
14
15
16
Pin
C
V
CC
13.2
V
CC
(SW)
13.2
SW OUT1
SW OUT2
SW E
SE B
SW - GND
Pin voltage (V)
3.92
3.70
3.70
3.73
4.0
0
Pin No.
17
18
19
20
21
22
23
Pin
+OUT2
–OUT2
PWR - GND2
D. C
STAND-BY
DDL OUT
ON-TIME
Pin voltage (V)
2.03
2.03
0
12.1
3.21
0
2.81
Standby
switch
Switching
regulator
block
*
Switch
driver
Standby switch
Ripple filter
(Tokin Co. Ltd.)
(OS capacitor)
*
= Polyester film capacitors
D1
SB40-05J
Flywheel diode
Amplifier output stage
Input amplifier
Input amplifier
Nonlinear amplifier/output stage
Nonlinear amplifier/output stage
TR1
Switching transistor
2SD1668, class S
Muting circuit used
at power on
Popping noise
prevention circuit
Power supply/ground shorting
Beep amplifier
*
4 to 2
4 to 2
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