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參數(shù)資料
| 型號： | LA8638V |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Low-voltage Compander IC for Cordless Telephones |
| 中文描述： | 低電壓擴展器集成電路無繩電話 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 399K |
| 代理商： | LA8638V |
Pin Number
Pin Name
Pin Voltage
Equivalent Circuit
Description
No. 5776-9/16
LA8638V
Pin Descriptions
1
GND
Ground for all circuits except BTL amplifier
2
1/2 V
CC
V
CC
/2
Resistance voltage divider pin
29
V
REF
V
CC
/2
Reference voltage for all circuits except
receiver block
3
CMP-NF
V
CC
/2
AC feedback control for compressor's
summing amplifier DC gain: 1 AC gain:
Infinite
4
DT-V
REF
1.25 V
Reference voltage for receiver block This
supplies the bias voltage for pin 5.
5
RX-IN
1.25 V power
supply
Filter buffer input
6
RX-FIL-OUT
1.25 V
Filter buffer output
7
EXP-IN
V
CC
/2
Expander input. Voltage-current converter
input. Full-wave rectifier input.
8
EXP-RCT
Indeterminate
(when there is
no signal)
Full-wave rectifier output for expander block
(AC smoothing)
9
RX-ATT-ADJ
0.03 V
Pin for setting attenuation for receiver output
level switching
10
RX-OUT
V
CC
/2
Receiver block output
Continued on next page.
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