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參數(shù)資料
| 型號： | LA8519M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | I/O Switch/Voice Signal-Processing IC for Cordless Telephones |
| 中文描述： | I / O交換/語音信號處理集成電路無繩電話 |
| 文件頁數(shù)： | 21/29頁 |
| 文件大?。?/td> | 317K |
| 代理商： | LA8519M |
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No. 6471-21/29
LA8519M
Speech network internal analog switch operation
48
49
BN1
BN2
SW2
SW3
SW4
–9.5 dB
HAND
SW1
2
1
2
1
2
1
1
2
TRANSMIT
AMP
GAIN CTL
RECEIVER
AMP
50
51
52
53
54
55
47
46
45
44
43
42
41
40
39
ATT
CPU
INTERFACE
Power supply
Line amplifier
T
38
37
36
35
M
P
34
R
33
(
A13131
+
+
+
R
Note: Switches SW2 and SW3 are controlled by the MUTE pin (pin 35). Switches SW1 and SW4 are controlled by address 3D as set by serial data
transfers. Note that switches SW2 and SW3 operate together, as do switches SW1 and SW4.
SW1 and SW4 Operation
State
SW1
SW4
Power supplied (initial state)
1
1
Address 3D
2
2
Power off
2
2
Note: When the power is off, SW1 and SW4 go to the "2" positions, and their states cannot be changed.
SW2 and SW3 Operation
Pin 35 (MUTE)
SW2
SW3
High
1
1
Low
2
2
Note: SW2 and SW3 operate as described above regardless of the power supplied/off state.
Line amplifier attenuator
Normally, the line attenuator is set to 0 dB. It can be set to –6 dB by setting address to 7D and mode to D = 1 with
a serial data transfer.
LINE-OUT
ATT
64
A13132
Oscillator amplifier attenuator
Normally, the oscillator amplifier attenuator is set to –16 dB. It can be set to 0 dB by setting address to 7F and
mode to D = 1 with a serial data transfer.
A13133
OSC-IN
ATT
SW5
8
Crosspoint Switch
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| LA8601M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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