TLV320AIC1109PBSR

Codecs Overview

The TLV320AIC1109PBSR is a mono PCM CODEC designed for voice-band communications systems. It operates on a single 2.7-V to 3.3-V supply and features two differential microphone inputs with programmable gain amplifiers, alongside one differential and one single-ended earphone output. The device supports 15-bit linear data or 8-bit companded (µ-law/A-law) modes via an I2C interface. It includes an internal phase-locked loop generating a 10.24-MHz clock from a 2.048-MHz master input, DTMF generation, and a pulse density modulated buzzer output. Packaged in a 32-terminal TQFP.

Codecs Feature Summary

• Dual differential microphone inputs with switchable low-noise amplification stages
• Integrated dual earphone amplifiers providing both differential and single-ended outputs
• On-chip I2C control bus enabling configuration of power modes, gains, and filters
• Built-in DTMF tone generator supporting standard telephony signaling

Codecs Applications

• Digital wireless handsets
• Digital headsets
• Cordless phones
• Digital PABX systems
• Digital voice recording devices

Codecs Procurement Notes

Verify the specific ordering suffix PBSR against the manufacturer's current documentation to confirm package type and reel specifications. Ensure the component meets RoHS compliance requirements for your assembly process. Confirm that the industrial temperature range of -40°C to +85°C aligns with your system's environmental operating conditions before finalizing procurement.

Codecs Selection Notes

Select this component when designing voice-band communication interfaces requiring integrated analog front-end processing. It is suitable for applications needing separate differential and single-ended audio outputs without external amplifiers. Consider the I2C interface complexity if microcontroller resources are limited, as it requires register configuration for optimal performance tuning.

Codecs Part Context

This device belongs to Texas Instruments' legacy PCM CODEC family, specifically engineered for telecommunications applications. It serves as a complete solution for analog-to-digital and digital-to-analog conversion in voice networks. The PBSR suffix indicates a tape-and-reel packaging format intended for automated surface-mount assembly processes.

Codecs Replacement Considerations

Direct replacements within the same series include the TLV320AIC1109PBR. Verify pin compatibility and electrical characteristics against the datasheet before substitution.