SI32193-A-ZM2R

Telecom Overview

The Skyworks Solutions Inc. SI32193-A-ZM2R is a single-channel Foreign Exchange Station (FXS) telephony interface solution within the ProSLIC family. It integrates all necessary SLIC, CODEC, and DTMF detection functions into a compact 4 x 6 mm, 38-pin QFN package. The device operates from a 3.3 V supply with 1.8 to 3.3 V I/O support and utilizes a 3-wire ISI digital interface. It supports wideband audio (150 Hz–6.8 kHz) and features a programmable DC-DC controller for optimized battery voltage tracking. Key electrical parameters include a maximum battery voltage of -100 V, loop feed current up to 45 mA, and an operating temperature range of 0°C to 70°C.

Telecom Feature Summary

• Performs complete BORSCHT functions including battery feed, over-voltage protection, ringing, supervision, CODEC, hybrid, and test capabilities.
• Integrates a DSP-based CODEC supporting wideband audio and software-programmable AC impedance and transhybrid balance.
• Includes built-in DTMF detection, tone generation, and metallic loop testing facilitated by an integrated monitor ADC and test load.
• Features a flexible integrated tracking DC-DC controller supporting low-cost capacitive boost configurations for reduced power consumption.

Telecom Applications

• VoIP Gateways and Routers
• xDSL Integrated Access Devices (IADs)
• Analog Terminal Adapters (ATA)
• Wireless Fixed Terminals (WFT)

Telecom Procurement Notes

Verify the specific ordering suffix ZM2R against official Skyworks documentation to confirm customer-specific parameter variations. Ensure compatibility with the required 3-wire ISI host interface and validate that the 38-pin QFN land pattern matches the PCB design guidelines provided in the datasheet. Confirm RoHS compliance status for the specific revision.

Telecom Selection Notes

Select this component for applications requiring a complete FXS solution in a minimal footprint. The SI32193 variant is specifically chosen when DTMF detection is required, distinguishing it from the SI32192. Consider the 0°C to 70°C commercial temperature range and the -100 V battery rating when designing the power supply and line interface circuits.

Telecom Part Context

The SI32193-A-ZM2R belongs to the Si3219x series of ProSLIC devices, which are pin-compatible single-channel FXS solutions. This series is designed to replace traditional discrete telephone interface components by integrating linefeed, CODEC, and signal processing into a single IC. The ZM2R designation indicates a commercial grade, customer-specific version of the standard Si32193-A-FM1 or Si32193-A-GM1 parts.

Telecom Replacement Considerations

Direct functional replacements within the same package include the Si32193-A-FM1 and Si32193-A-GM1. Verify if the customer-specific parameters of the ZM2R variant differ from these standard parts, as they may require firmware adjustments or have different electrical tolerances.