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參數(shù)資料
| 型號： | LA6543 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP34 |
| 封裝： | HEAT SINK, QFP-34 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大小： | 77K |
| 代理商： | LA6543 |
LA6543
No. 5973-4/7
Pin Function
Pin number
Pin name
Equivalent circuit
Pin function
1
Output stage reference voltage
2
Connect to
3,4
Substrate (minimum potential)
20,21
7
CH1 non-inverted output (CH1+)
8
CH1 inverted output (CH1-)
10
CH2 non-inverted output (CH2+)
11
CH2 inverted output (CH2-)
12
CH3 non-inverted output (CH3+)
13
CH3 inverted output (CH3-)
16
CH4 non-inverted output (CH4+)
17
CH4 inverted output (CH4-)
9
Power supply for output stage (CH1 to CH3)
15
(CH4)
5
Connect to
6
Output reference voltage
14,30
May not be used.
34
18
Output reference voltage
24
VG4
Input pin for CH4 (gain adjustment)
26
VG3
Input pin for CH3 (gain adjustment)
28
VG2
Input pin for CH2 (gain adjustment)
31
VG1
Input pin for CH1 (gain adjustment)
25
Input pin for CH4 (fixed gain)
27
Input pin for CH3 (fixed gain)
29
Input pin for CH2 (fixed gain)
32
Input pin for CH1 (fixed gain)
19
Reference voltage input
22
Power supply
23
MUTE2
CH2-CH4 amplifier output ON/OFF
33
MUTE1
CH1 amplifier output ON/OFF
N C
R F
VSS2-OUT
V SS2
VO2
VO3
V O1
VO4
VO6
VO7
V O5
VO8
VSS1-OUT
VREF-OUT
VS1
V SS1
VIN3
VS2
VIN2
VREF-IN
VCC
VIN1
V IN4
VS2
(VSS2-VBE)/2: typ)
(VREF buffer amplifier output)
(VSS1/2: typ)
VS1
(VREF buffer amplifier input)
A11145
VCC
MUTE
To bias circuit
22
23
33
RF
3 20
21
4
VS
VO
A11144
Drive
circuit
9 15
RF
3 20
21
4
7
12
16
10
11
13
17
8
VCC
VIN
VG
RF
11k
VREF OUT
A11143
25
29
32
27
28
31
26
18
3 20
21
4
22
24
Drive
circuit
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