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參數(shù)資料
| 型號： | LE57D113JC |
| 英文描述： | Telecommunication IC |
| 中文描述： | 通信集成電路 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 546K |
| 代理商： | LE57D113JC |
Le57D11 Data Sheet
Publication#
080676
Rev:
A
Version:
1.0
Date:
Nov 16, 2001
P R E L I M I N A R Y
Dual SLIC
Dual Subscriber Line Interface Circuit
Le57D11 Device
APPLICATIONS
Ideal for low cost, high performance line card
applications (CO, DLC)
Meets requirements for countries such as: China,
Korea, Japan, Taiwan, and Australia
Fulfills the following China specifications: GF002-
9002.1
FEATURES
Dual Channel SLIC device with small footprint
On-chip Thermal Management (TMG) feature in normal
and reverse polarity
Control states: Active (normal and reversal polarity),
Standby, and Disconnect
On-hook transmission
Low standby power
–39 V to –58 V battery operation
Two-wire impedance set by single external impedance
Per channel fault detection
Device level thermal shutdown
Programmable constant-current feed (Range TBD)
Programmable loop-detect threshold
Programmable ring-trip detect threshold
Only +5 V and battery supply required
Current Gain = 500
ORDERING INFORMATION
32-Pin PLCC
44-pin eTQFP
Device
Performance Grade
Le57D111JC
32-pin PLCC, 48 dB Polarity Reversal
Le57D113JC
32-pin PLCC, 48 dB No Polarity Reversal
Le57D111TC
44-pin eTQFP, 48 dB Polarity Reversal
Le57D113TC
44-pin eTQFP, 48 dB No Polarity Reversal
DESCRIPTION
The innovative Le57D11 Dual Channel SLIC device was
designed for high-density POTS applications requiring a small
footprint SLIC device with significant power savings. By
combining the line interface of two channels into one SLIC
device, the Le57D11 device enables the design of a low cost,
high performance, and fully programmable line interface for
multiple country applications worldwide. The on-chip Thermal
Management (TMG) feature allows for significantly reduced
power dissipation on the device. Another benefit is that it is
offered in space-saving package types 44-pin eTQFP and 32-
pin PLCC. The small footprint of the SLIC device allows
designers to save board space, increasing the density of lines
on the board. The Le57D11 device is also designed to
significantly reduce the number of external components
required for line card design.
Legerity offers a range of compatible SLAC devices that
perform the codec function in a line card. In particular, the
Legerity Quad SLAC device combined with the Le57D11
device provides a programmable line circuit that can be
configured for varying requirements.
RELATED LITERATURE
080147 Am79Q02/021/031 Quad SLAC Data Sheet
080753 Le58QL02/021/031 QLSLAC
Data Sheet
080748 Le57D11 Evaluation Board User’s Guide
BLOCK DIAGRAM
BGND
1
A
2
(TIP)
HP
2
B
2
(RING)
VTX
2
RSN
2
CH2
2-W
Interface
CH1
2-W
Interface
CH2
Input
Decoder
and Control
Common
Bias
O
D
CH2
P
C
CH2
R
D
CH2
R
D
CH1
P
C
CH1
O
D
CH1
CH2
Fault
Detector
CH1
Fault
Detector
S
T
CH2
S
T
CH1
CH1
Input
Decoder
and Control
T
2
C
2
C
2
C
2
D
2
C
I
D
1
C
1
C
1
C
1
T
1
A
1
(TIP)
HP
1
B
1
(RING)
VTX
1
RSN
1
BGND
2
V
C
2
D
2
D
D
1
C
1
V
A
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