TLV320AIC14IDBTG4

Codecs Overview

The TLV320AIC14IDBTG4 is a low-power, highly integrated mono voice band audio codec manufactured by Texas Instruments. It features a 16-bit oversampling sigma-delta analog-to-digital converter and a matching digital-to-analog converter. The device supports a maximum sampling rate of 26 ksps with on-chip filters or up to 104 ksps when bypassed. It operates with a 2.7 V to 3.6 V analog supply and a 1.65 V to 1.95 V digital core supply. Key interfaces include the SMARTDM serial port for DSP connectivity and a programmable I2C/S2C host port. Power consumption is 17.8 mW at 3.3 V in standard operation.

Codecs Feature Summary

• Integrates a 16-bit ADC and DAC with selectable FIR/IIR filters and programmable gain amplifiers.
• Supports glueless connection to TI DSPs via SMARTDM serial interface and cascading up to 16 devices.
• Includes dedicated headphone and speaker drivers capable of driving low-impedance loads.

Codecs Applications

• Wireless accessories
• Hands-free car kits
• VOIP systems

Codecs Procurement Notes

Verify the component against the official Texas Instruments datasheet SLWS115E to confirm pinout compatibility and electrical specifications. Ensure the industrial temperature range (-40°C to 85°C) matches your system requirements. Check for moisture sensitivity level compliance during storage and handling procedures.

Codecs Selection Notes

Select this model for mono voice-band applications requiring integrated output drivers. Compare power dissipation metrics between standard operation and headphone driver usage. Verify that the required sampling rates fit within the 26 ksps filtered or 104 ksps bypassed limits defined in the datasheet.

Codecs Part Context

This component belongs to the TLV320AIC1x family of low-power audio codecs. It shares architectural similarities with the TLV320AIC12 and TLV320AIC13 but includes specific output driver configurations for headphones and speakers. The 'I' suffix indicates industrial temperature rating, while 'G4' denotes lead-free and RoHS compliance.

Codecs Replacement Considerations

TLV320AIC14IDBT is a non-RoHS equivalent within the same package. TLV320AIC12KIDBTR offers similar functionality but includes an 8-ohm speaker driver instead of the headphone/speaker configuration found in the AIC14.

Codecs FAQ

What is the maximum load resistance for the differential headphone outputs?

The differential outputs (OUTP2/OUTMV and OUTP3/OUTMV) can drive a minimum load resistance of 32 ohms.

How does the device handle master clock input?

The device supports a maximum master clock frequency of 100 MHz to derive internal clocks for the sigma-delta analog interface.

Can multiple TLV320AIC14 devices be connected to a single serial port?

Yes, up to 16 TLV320AIC1x codecs can be cascaded to a single SMARTDM serial port using automatic cascade detection.