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ISL5586 Datasheet

  • ISL5586

  • Low Power Ringing SLIC for Home Gateways

  • 20頁

  • INTERSIL   INTERSIL

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ISL5586
TM
Data Sheet
June 2001
File Number
4924.1
Low Power Ringing SLIC for Home
Gateways
The ISL5586 is a very low
power Ringing Subscriber
Interface circuit designed for
use with the Broadcom*
BCM3352 Cable Modem
Chip, with on-board voiceband codecs, or other 3.3V
voiceband codec devices.
The ISL5586 provides on board ringing signal generation up
to 95V peak supporting sinusoidal or trapezoidal
waveshapes with DC offset. Loop start and ground start
trunks are supported, and an open circuit DC voltage of less
than 56V is maintained on the subscriber loop in the on-hook
condition, in compliance with MTU operation and the safety
requirements of UL-1950.
Together with the Broadcom BCM3352, the ISL5586
provides resistive and complex two wire impedance
matching and transhybrid balancing. Also supported are on-
hook transmission of caller id signals, soft and hard polarity
reversal and 12/16kHz subscriber pulse metering systems
used in Europe and Asia, thereby allowing a low cost, low
risk, global product design to be achieved.
Features
鈥?Interfaces to Broadcom 3352 cable modem device
鈥?Very low on-hook power consumption
- 64mW @ Vbh = 75V
鈥?User Programmable constant current to the subscriber
loop
鈥?On Chip ring generation
- Balanced to 95 Vpk
鈥?Sinewave, Trapezoid, DC offset
鈥?Programmable loop start and ring trip detectors
鈥?Loop start, Ground Start, Polarity Reversal (soft/hard)
鈥?On-Hook transmission and pulse metering support
鈥?Integrated battery switch
鈥?Open circuit line voltage clamp
鈥?Compatible with 3.3V devices
鈥?TR-57 compliant Longitudinal balance
鈥?28 PLCC packaging
鈥?Latch-up free Bipolar design
鈥?Thermal protection
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Cable Modems
Voice Over DSL (VoDSL)
Broadband Wireless Access
Voice Over Internet Protocol (VoIP)
ISDN Terminal Adapters (TA)
Small Office Home Office PBX
Wireless Local Loop
Related Literature
鈥?Evaluation Board for the ISL5586 family AN9918
鈥?Technical Brief TB363 鈥淕uidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)鈥?/div>
Block Diagram
POL CDCP CDCM
DC
CONTROL
V
BL
V
BH
BATTERY
SWITCH
ILIM
RINGING
PORT
V
RSP
V
RSM
TIP
RING
2-WIRE
PORT
TRANSIENT
CURRENT
LIMIT
TRANSMIT
SENSING
4-WIRE
PORT
V
RXP
V
RXM
-IN
V
ZO
V
FB
V
TXP
V
TXM
F2
F1
F0
TL
INTERNAL
LOOP BACK
DETECTOR
LOGIC
CONTROL
LOGIC
RTD RD
DET
BSEL
*Broadcom is a registered trademark of Broadcom Corp.
4-1
RSLIC18鈩?is a trademark of Intersil Corporation.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil and Design is a trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2001, All Rights Reserved

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