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Zarlink Semiconductor - Dual Channel SLIC

Numéro de référence ZL49200
Description Dual Channel SLIC
Fabricant Zarlink Semiconductor 
Logo Zarlink Semiconductor 





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ZL49200 fiche technique
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ZL49200
Dual Channel SLIC
Data Sheet
Features
• Transformerless 2 W to 4 W conversion
• Controls battery feed to line
• Off-hook and dial pulse detection
• Ring ground over-current protection
• Programmable constant current feed
• -30 V to -72 V battery operation
• Relay and line driver electronics on board
Applications
• PABX/ONS/OPS
• Key Telephone Systems
• Integrated Access Devices
• SOHO and Home Gateway
December 2005
Ordering Information
ZL49200MDC 38 Pin SIL Trays
-40°C to +85°C
Description
The Zarlink ZL49200 Dual SLIC hybrid provides an
interface between a switching system and a subscriber
loop with 600 impedance. The functions provided by
each SLIC include battery feed, 2 W to 4 W
conversion, off-hook and dial pulse detection. All driver
electronics are included on the hybrid in order to
minimize the number of external components required
by the user.
Loop Length determination table provided on page 9.
VBAT
VDD VEE GND
TIP
RING
Tip Drive
Controller
Audio Gain & Network
Balance circuit
VX
VR
Line Sense
2W to 4W
Conversion & Line
Impedance
Over-Current
Protection circuit
Ring Drive
Controller
Loop Supervision
RF RV
C1
5v External Electro-
mechanical relay,
DPDT/2 Form C
C7 100nF, 20%
C6 1µF, 20%, 16V Ringing Signal
C7
Relay
Driver
RLYD
C6 GND
VLC
SHK
VRLY
RLYC
Figure 1 - Dual Channel SLIC Single Channel Schematic Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2004-2005, Zarlink Semiconductor Inc. All Rights Reserved.

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