Si3245/Si3203
Quad ProSLIC® Programmable CMOS SLIC/Codec
The Quad ProSLIC
®
is a series of low-voltage CMOS
devices that integrate both SLIC and codec
functionality into a single IC to provide a complete
four-channel analog telephone interface in
accordance with all relevant Telcordia, ITU, and ETSI
specifications. The Si3245 supports centralized
ringing for long loop and legacy applications. On-chip
subscriber loop and audio testing allows remote
diagnostics and fault detection with no external test
equipment or relays. The Quad ProSLIC devices
operate from a single 3.3 V supply and interface to
standard PCM/SPI or GCI bus digital interfaces. The
Si3203 linefeed interface IC performs all high-voltage
functions and operates from a 3.3 V supply as well
as three battery supplies up to –110 V. The Quad
ProSLIC devices are available in a 100-pin thin quad
flat package (TQFP), and the Si3203 is available in a
thermally-enhanced 48-pin thin quad flat package
(TQFP) or 40-pin quad flat no-lead (QFN) package.
Description
Features
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Performs all BORSCHT functions
Ideal for applications up to 20 kft (6 km)
External bulk ringer support
Power offloading
Low power consumption
2.5 V
rms
pulse metering (12/16 kHz)
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Software programmable parameters:
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Two-wire ac impedance
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Transhybrid balance
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DC current loop feed (10–50 mA)
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Loop closure and ring trip thresholds
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Ground key detect threshold
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Power alarms
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Automatic switching of up to three battery supplies
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On-hook transmission
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Loop or ground start operation
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Smooth polarity reversal
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DTMF decoder
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Dual tone generators
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Caller ID generator
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A-Law/µ-Law companding, linear PCM
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PCM and SPI bus digital interfaces with program-
mable interrupts
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GCI/IOM-2 mode support
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3.3 V operation
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GR-909/844 loop diagnostics
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Audio diagnostics with loopback
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Pb-free/RoHS compliant packages
Applications
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Digital loop carrier (DLC) line cards
Central office (CO) line cards
Integrated voice and data (IVD) line cards
Private Branch Exchange (PBX) systems
SLIC
TIP
Channel 1
RING
Relay
CODEC
ADC
DAC
CODEC
ADC
DAC
Relay
Linefeed
Control
Linefeed
Monitor
PCM/GCI
DTMF &
Tone Gen
SPI
Programmable
AC Impedance
and Hybrid
CODEC
ADC
DAC
CODEC
ADC
DAC
SLIC
Linefeed
Control
Linefeed
Monitor
TIP
Channel 3
RING
Si3203
Si3203
Caller ID
SLIC
Linefeed
Control
Linefeed
Monitor
TIP
Relay
Line
Diagnostics
Ring Trip
Detection
SLIC
Linefeed
Control
Linefeed
Monitor
Si3203
Si3203
TIP
Relay
Channel 2
RING
Channel 4
RING
DSP
ProSLIC
Copyright © 2007 by Silicon Laboratories
7.17.07
SILABS [ SILICON LABORATORIES ]
