Description
The Dual ProSLIC® is a family of low-voltage CMOS devices that integrate both SLIC and CODEC functionality into a single IC. In combination with a linefeed IC (LFIC), they provide a complete two-channel analog telephone interface in accordance with all relevant LSSGR, ITU, and ETSI specifications.
Features
â Performs all BORSCHT functions
â Ideal for short- or long-loop applications
â Internal balanced or unbalanced ringing
â Low power consumption
â Software-programmable parameters:
â Ringing frequency, amplitude, cadence, and waveshape
â Two-wire ac impedance
â Transhybrid balance
â DC current loop feed (10â45 mA)
â Loop closure and ring trip thresholds
â Ground key detect threshold
â Integrated dc-dc controller
â Wideband CODEC (Si3227)
â Low-power sleep mode
â On-hook transmission
â Loop or ground start operation
â Smooth polarity reversal
â DTMF generator/decoder
â A-Law/µ-Law companding, linear PCM
â PCM and SPI bus digital interfaces with programmable interrupts
â GCI/IOM-2 mode support
â 3.3 V operation
â GR-909 loop diagnostics
â Audio diagnostics with loopback
â Pb-free/RoHS-compliant packaging
Applications
â Customer Premises Equipment (CPE)
â Optical Network Terminals (ONT)
â Private Branch Exchange (PBX)
â Cable EMTAs, ATAs, VoIP Gateways
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