TLV320AIC1103PBSR

Codecs Overview

The TLV320AIC1103PBSR is a mono audio codec manufactured by Texas Instruments, designed for voice-band communications. It operates on a single 2.7-V supply and features two differential microphone inputs and one differential plus one single-ended earphone output. The device supports 15-bit linear data or 8-bit companded (µ-law/A-law) data via an I2C interface. It includes programmable gain amplifiers, DTMG tone generation, and PDM buzzer output. The component is housed in a 32-pin TQFP package with an operating temperature range of -40°C to +85°C.

Codecs Feature Summary

• Integrated dual differential microphone inputs with switchable low-noise amplification stages.
• Dual earphone outputs providing both differential and single-ended configurations with click suppression.
• Built-in DTMF and single-tone generator supporting pulse density modulation buzzer control.
• Configurable transmit and receive digital filters compliant with CCITT G.714 standards.

Codecs Applications

• Digital 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 the tape-and-reel packaging configuration. Ensure the component meets RoHS compliance requirements for your target assembly process. Cross-reference the datasheet revision date to validate that all electrical characteristics and terminal functions align with your design specifications before finalizing procurement.

Codecs Selection Notes

Select this component for applications requiring a low-power, single-supply audio codec with integrated tone generation. The device is suitable for designs needing separate analog and digital power domains to minimize noise. Consider the available TQFP-32 package for standard surface-mount assembly. Verify that the host controller can support the required I2C interface for register configuration and mode selection.

Codecs Part Context

This part belongs to the TLV320AIC series of PCM codecs from Texas Instruments. It is specifically engineered for telecommunications and portable audio applications. The PBSR suffix indicates the Thin Quad Flatpack (TQFP) package variant with reel packaging. This model provides a complete solution for analog-to-digital and digital-to-analog conversion in voice-centric systems.

Codecs Replacement Considerations

Consult the official Texas Instruments product transition notices for confirmed substitute part numbers. Do not assume functional equivalence with other models in the family without verifying pinout and electrical parameter compatibility through official documentation.

Codecs FAQ

How is the internal clock generated?

The device generates its own internal 10.24-MHz clock by phase-locking to a 2.048-MHz master clock input provided at the MCLK terminal.

What are the power-up modes?

The PWRUPSEL terminal allows selection between default mode (powering up automatically without I2C) and a powered-down state (requiring I2C commands to activate).

Can the device operate without a microcontroller?

Yes, when configured in the default power-up mode via the PWRUPSEL terminal, the device powers up with fixed programmable functions and does not require an I2C interface.