TLV320AIC12KIRHBT

Codecs Overview

The TLV320AIC12KIRHBT is a low-power, highly integrated mono voice codec featuring a 16-bit oversampling sigma-delta ADC and DAC. It operates with a digital core voltage of 1.65 V to 1.95 V, digital I/O from 1.1 V to 3.6 V, and analog supplies of 2.7 V to 3.6 V. The device supports sampling rates up to 26 ksps with on-chip filters or 104 ksps when bypassed. Key performance metrics include an SNR of 84 dB for the ADC and 92 dB for the DAC. Power consumption is 17.8 mW at 3.3 V in standard operation. It utilizes SMARTDM and I2C/S2C interfaces.

Codecs Feature Summary

• Integrates programmable gain amplifiers, microphone preamplifiers, and selectable FIR/IIR filters for voice-band signal conditioning.
• Features a dedicated 16-ohm speaker driver output capable of driving low-impedance loads directly.
• Supports glueless cascading of up to 16 devices via the SMARTDM serial port for multichannel expansion.
• Includes comprehensive power management with independent software control for ADC, DAC, and amplifier sections.

Codecs Applications

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

Codecs Procurement Notes

Verify the specific ordering suffix IRHBT confirms the QFN-32 package and industrial temperature range (-40°C to 85°C). Ensure the design accommodates the thermal pad connection to DRVDD as specified in the datasheet. Confirm that the host system supports the required SMARTDM or I2C/S2C interface protocols for proper initialization and data transfer.

Codecs Selection Notes

Select this component for applications requiring a single-channel mono codec with integrated audio output drivers. The 'K' designation indicates industrial temperature rating and enhanced features compared to non-K variants. Verify that the available supply voltages match the separate requirements for the digital core, digital I/O, and analog sections to ensure correct biasing and operation.

Codecs Part Context

This part belongs to the TLV320AIC1x family of low-power audio codecs. The AIC12K variant specifically includes the 16-ohm speaker driver, distinguishing it from the AIC13, AIC14, and AIC15 models which lack this output stage. The RHB suffix denotes the QFN-32 package type, offering a compact footprint suitable for space-constrained portable designs.

Codecs Replacement Considerations

TLV320AIC12KIDBTR (TSSOP-30 package)

Codecs FAQ

What is the maximum load resistance supported by the speaker driver outputs?

The OUTP2 and OUTP3 outputs can drive a minimum load resistance of 16 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 the ADC and DAC operate at different sampling rates?

Yes, the device allows different sampling rates for each device in a cascade, but within a single unit, the ADC and DAC typically share the same conversion rate determined by the frame sync.