TLV320AIC1110ZQER

Codecs Overview

The TLV320AIC1110 is a low-power PCM codec designed for analog and digital wireless handsets. It operates on a single 2.7-V to 3.3-V supply and features two differential microphone inputs with switchable gain stages of 23.5 dB and 6/18 dB. The device provides differential (EAR1) and single-ended (EAR2) earphone outputs capable of driving loads down to 8 Ω. It supports 15-bit linear or 8-bit companded (µ-law/A-law) data formats via an I²C interface. Key functions include programmable transmit/receive paths, sidetone control, DTMF generation, and a PDM buzzer output.

Codecs Feature Summary

• Integrated dual differential microphone amplifiers with selectable gain configurations
• Differential and single-ended earphone drivers supporting speaker phone applications
• Built-in DTMF tone generator with selectable frequency resolutions
• Configurable I²C control interface for power management and audio routing

Codecs Applications

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

Codecs Procurement Notes

Verify the specific package variant required, as the device is available in both 32-pin TQFP and MicroStar Junior BGA formats. Confirm that the design includes the necessary external components, such as the precision resistor for reference current setting at the REXT terminal and pull-up resistors for the I²C bus. Ensure the PCB layout accounts for separate analog and digital ground planes to maintain signal integrity.

Codecs Selection Notes

Select this component when a low-power solution with integrated DTMF generation and high-drive capability for 8-ohm speakers is required. It is suitable for designs needing flexible microphone input options and programmable audio path gains. Consider the available packages based on board space constraints, noting that the BGA option offers a smaller footprint compared to the TQFP.

Codecs Part Context

The TLV320AIC1110 belongs to Texas Instruments' legacy PCM codec family, specifically engineered for telecommunications and mobile handset applications. It serves as an analog-digital interface for voice band signals, offering companding options to optimize dynamic range over telephone networks. The device is pin-compatible with other models in the series for specific package types, facilitating design upgrades.

Codecs Replacement Considerations

Check for pin compatibility with the TLV320AIC1103 and TLV320AIC1109 devices if using the TQFP package. Verify functional equivalence regarding I²C register maps and electrical characteristics before substitution.