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参数资料
| 型号： | LA8638NV |
| 元件分类： | 模拟运算功能 |
| 英文描述： | COMPANDER, PDSO30 |
| 封装： | SSOP-30 |
| 文件页数： | 1/16页 |
| 文件大小： | 107K |
| 代理商： | LA8638NV |
Overview
The LA8638NV provides dynamic range expansion, noise
suppression for enhancing the quality of audio signals in
cordless telephones and other communications systems.
This single chip provides the functions that make it ideal
for cordless telephones: a compressor with a logarithmic
compression ratio of 1/2, expander with a logarithmic
expansion ratio of 2, splatter filter, microphone amplifier,
BTL amplifier, waveform shaper for the receiving signal,
muting for both receiving and transmitting signals, and
standby operation.
Functions
Transmitter circuits: compressor, microphone amplifier,
limiter (IDC), muting, output level changes to user-
specified levels, and splatter filter
Receiver circuits: expander, buffer amplifier for filters,
muting, output level changes to user-specified levels,
and BTL amplifier
Other circuits: waveform shaper for the receiving signal
and standby operation
Features
Full processing of baseband signals for both receiving
and transmitting signals
Built-in BTL receiver amplifier for driving a ceramic
speaker with a load of 2 k
Standby operation that conserves battery power during
intermittent reception by disabling all but the waveform
shaper for the receiving signal
Built-in splatter filter with user-specified fc
Low-voltage operation (1.8 V to 5.5 V)
Package Dimensions
unit: mm
3191A-SSOP30
115
16
7.6
0.65
9.75
0.5
5.6
0.1
1.5max
30
0.22
(0.33)
0.15
(1.3)
Monolithic Linear IC
N1403TN (OT) No. 6627-1/16
SANYO: SSOP30
[LA8638NV]
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Low-Voltage Compander IC
for Cordless Telephones
LA8638NV
Ordering number : ENN6627
Parameter
Symbol
Conditions
Ratings
Unit
Maximum power supply voltage
VCC max
7.0
V
Maximum power dissipation
Pd max
Ta
≤ 75°C
100
mW
Operating temperature
Topr
–20 to +75
°C
Storage temperature
Tstg
–40 to +125
°C
Specifications
Maximum Ratings at Ta = 25°C
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LA8638V | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Low-voltage Compander IC for Cordless Telephones |
| LA8645W | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| LA8670M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Double-Conversion Narrow-Band FM IF System |
| LA8677V | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:LA8677V |
| LA8797BH | 制造商:未知厂家 制造商全称:未知厂家 功能描述:16-Bit Microcontroller |
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