SI3232 Datasheet | Silicon Labs

DUAL PROGRAMMABLE CMOS SLIC WITH LINE MONITORING Features Ideal for customer premise applications Low standby power consumption: <65 mW per channel Internal balanced ringing to 65 Vrms Software programmable parameters: Ringing frequency, amplitude, cadence, and waveshape Two-wire ac impedance DC loop feed (18- 45 mA) Loop closure and ring trip thresholds Ground key detect threshold Automatic switching of up to three battery supplies On-hook transmission Loop or ground start operation with smooth/abrupt polarity reversal SPI bus digital interface with programmable interrupts 3.3 V operation GR-909 loop diagnostics and loopback testing 12 kHz/16 kHz pulse metering Lead-free/RoHS...