DC-DC Converter Controller

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The Si3210 ProSLIC™ provides a complete analog telephone interface ideal for customer premise equipment (CPE) applications. The Si3210 integrates subscriber line interface circuit (SLIC), codec and battery generation functionality into a single low-voltage CMOS integrated circuit. Combined with Silicon Laboratories’ new Si3201 linefeed integrated circuit, the Si3210 packs maximum performance and flexibility into a 1.5 in2 footprint, making it the smallest single-channel telephony interface available.

The integrated battery supply continuously adapts its output voltage to minimize power and enables the entire solution to be powered from a single 3.3 V or 5 V supply. Software configurable features include 5 REN internal ringing up to 90 VPK, DTMF generation and decoding, and a comprehensive set of telephony signaling capabilities for global operation with only one hardware solution. The Si3210 is packaged in a 38-pin TSSOP, and the Si3201 is packaged in a thermally-enhanced 16-pin SOIC.

• Fixed Wireless (cellular) Terminals
• Terminal Adapters
• PBX/IP-PBX/Key telephone systems
• Voice-over-IP Systems:
- WiMax/LTE

Symmetry Electronics is an authorized Silicon Labs distributor.


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Performs all battery, overvoltage, ringing, supervision, coding, hybrid and test (BORSCHT) functions
Adaptive battery voltage generation minimizes power in all operating modes
Entire solution can be powered from a single 3.3 V or 5 V supply
5 REN sinewave or trapezoid internal ringing up to 90 VPK
Software programmable parameters for global compliance with one hardware solution:
- Ringing amplitude, frequency and cadence
- Constant current loop feed (2041 mA)
- Ring trip/loop closure thresholds and filtering
- 2-wire AC impedance and transhybrid balance
Extensive telephony signalling capabilities:
- DTMF generation and decoding
- Polarity reversal
- FSK (caller ID) tone generation
- 12 kHz and 16 kHz pulse metering
Audio loopback, DC and GR-909 subscriber line diagnostic capabilities
Configurable PCM/SPI digital interface


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Silicon Labs Product Brief

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DC-DC Converter Controller
Part #: SI3210M-GTR
DC-DC Converter Controller