SI3208

Si3226/7 Si3208/9 D U A L P R O S L I C ® W I T H DC-DC C O N T R O L L E R Features Performs all BORSCHT functions Ideal for short- or long-loop applications Internal balanced or unbalanced ringing Low power consumption Software-programmable parameters: Ringing frequency, amplitude, cadence, and waveshape Two-wire ac impedance Transhybrid balance DC current loop feed (10–45 mA) Loop closure and ring trip thresholds Ground key detect threshold Integrated dc-dc controller Wideband CODEC (Si3227) Low-power sleep mode On-hook transmission Loop or ground start operation Smooth polarity reversal DTMF generator/decoder A-Law/µ-Law companding, linear PCM PCM and SPI bus digital interfaces with programmable interrupts GCI/IOM-2 mode support 3.3 V operation GR-909 loop diagnostics Audio diagnostics with loopback Pb-free/RoHS-compliant packaging Applications Customer Premises Equipment (CPE) Optical Network Terminals (ONT) Private Branch Exchange (PBX) Cable EMTAs, ATAs, VoIP Gateways Ordering Information See page 33. Patents pending 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. The Dual ProSLIC devices (Si3226/7) operate from a single 3.3 V supply and interface to standard PCM/SPI or GCI bus digital interfaces. The LFICs ...