SI3245中文资料SILABS数据手册PDF规格书

Description

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.

Features

- Performs all BORSCHT functions

- Ideal for applications up to 20 kft (6 km)

- External bulk ringer support

- Power offloading

- Low power consumption

- 2.5 Vrms pulse metering (12/16 kHz)

- Software programmable parameters:

- Two-wire ac impedance

- Transhybrid balance

- DC current loop feed (10–50 mA)

- Loop closure and ring trip thresholds

- Ground key detect threshold

- Power alarms

- Automatic switching of up to three battery supplies

- On-hook transmission

- Loop or ground start operation

- Smooth polarity reversal

- DTMF decoder

- Dual tone generators

- Caller ID generator

- 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-909/844 loop diagnostics

- Audio diagnostics with loopback

- Pb-free/RoHS compliant packages

Applications

- Digital loop carrier (DLC) line cards

- Central office (CO) line cards

- Integrated voice and data (IVD) line cards

- Private Branch Exchange (PBX) systems