TLV320AIC22PTR

Overview

The TLV320AIC22PTR is a dual Voice over Internet Protocol (VoIP) codec manufactured by Texas Instruments. It integrates two 16-bit Analog-to-Digital Converters (ADCs) and two 16-bit Digital-to-Analog Converters (DACs). The device supports sampling rates of 7.2, 8, 8.229, 9.6, 10.285, 12, 14.4, and 16 kHz. It features programmable input/output gain, an analog crosspoint switch, and 8-bit A-law/µ-Law companding or 16-bit linear data compliant with G.711. Typical performance includes 77-dB SNR+D for the ADC, 78-dB for the DAC, and 80-dB dynamic range. Power consumption is typically 120 mW under a single 3.3-V supply. It is packaged in a 48-pin Low-Profile Quad Flatpack (LQFP) and operates from -40°C to 85°C.

Feature Summary

• Dual codec architecture with integrated analog crosspoint for flexible I/O routing
• Supports seamless interface to DSP multichannel buffered serial ports (McBSP)
• Programmable preamplifiers and gain control for microphone, handset, headset, and speaker applications

Applications

• Voice over Internet Protocol (VoIP) terminal adapters
• Digital subscriber line (DSL) modems
• ISDN terminal equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. Ensure compatibility with system power supplies and digital interfaces before integration. Confirm RoHS compliance status through official datasheets.

Selection Notes

Select this component for applications requiring dual-channel voice processing with low power consumption. Verify that the required sampling rates and data formats align with the system's digital interface constraints. Consider the available analog inputs and outputs for the specific acoustic environment.

Part Context

This part belongs to the TLV320AIC series of audio codecs designed primarily for telephony and VoIP applications. It provides a cost-effective solution for integrating high-quality voice conversion into embedded systems without requiring external discrete components for basic signal conditioning.

Replacement Considerations

Check for updated revisions within the same family. Verify pinout and register compatibility if substituting with other dual codec models from the manufacturer.