Hot-selling and scarce SI3220-KQR PROGRAMMABLE CMOS SLIC/CODEC TQFP-64 spot stock

Product Descriptions

The Dual ProSLIC is a low power CMOS solution that integrates two SLICs and two codecs into a tiny footprint to provide the smallest and lowest cost dual-channel analog telephone interface. Fully programmable parameters allow global compliance using a single hardware solution and on-chip functions such as DTMF generation/decoding, FSK caller ID generation, and modem tone detection help eliminate external DSP requirements. Integrated test and line monitoring allows remote subscriber loop and  line card diagnostics without centralized test equipment. The Si3220 provides  programmable internal ringing generation for space-constrained CPE applications, and the Si3225 includes internal ringing relay drivers and ring trip detection to minimize external components in traditional access applications. The Si3220 and Si3225  operate from a single 3.3 V or 5 V supply and interface directly to standard PCM/SPI  or GCI digital interfaces; all high voltage functions are performed using the Si3200 linefeed interface IC. The Si3220 and Si3225 are packaged in a 64-pin TQFP, and the Si3200 is packaged in a thermally-enhanced 16-pin SOIC.

Product Features

• Performs all battery, overvoltage, ringing, supervision, coding, hybrid, and test (BORSCHT) functions per LSSGR and ITU standards

• Ideal for applications up to 18,000 feet

• Software programmable parameters for global compliance with one hardware design:

– Constant current loop feed (18--45 mA)

– Two-wire AC impedance

– Transhybrid balance

– Ringing frequency, amplitude, cadence

– Loop closure and ring trip thresholds

– Ground key detection threshold

• Low standby power consumption: <50 mW

• Integrated subscriber line diagnostics and multiple analog/digital loopback test modes

• Internal ringing up to 65VRMS (Si3220)

• Programmable ringing relay control and ring trip detection for centralized ringing architectures (Si3225)

• Loop start and ground start support

• Automatic dual battery switching

• DTMF generation and decoding

• Modem/fax tone detection

• FSK (caller ID) tone generation

• 12/16 kHz pulse metering (Si3220)

• PCM/SPI or GCI digital interfaces

Product Applications

• CO/DLC line cards

• PBX/key telephone systems

• Cable telephony systems

• Voice over IP/Voice over DSL systems

• Pair gain remote terminals

Product Photos

For more product information, please download the PDF

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