SI3226 Datasheet | Silicon Labs

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 panding, linear PCM PCM and SPI bus digital interfaces with...