TLV320AIC3106IRGZT
TLV320AIC3106IRGZT - Low-Power Stereo Audio CODEC | TI
The Texas Instruments TLV320AIC3106IRGZT is a low-power stereo audio CODEC with 10 inputs, 7 outputs, integrated headphone amplifier, and enhanced digital effects, housed in a 48-pin VQFN (RGZ) 7x7 mm package. It supports 16/20/24/32-bit PCM data at sample rates from 8 kHz to 96 kHz with 102 dBA signal-to-noise ratio on the DAC path, and operates from a 1.8 V digital supply plus a 3.3 V analog supply, consuming as little as 15 mW during stereo 48 kHz DAC playback.
An audio CODEC (coder-decoder) is an integrated circuit that converts between digital audio streams and analog microphone/line/headphone signals, combining an ADC input path and DAC output path inside a single chip. The TLV320AIC3106 sits in the broader hierarchy of audio interface ICs -> interface ICs -> integrated circuits, and is widely deployed in portable, battery-powered, and space-constrained designs where low power, stereo playback, and integrated headphone drive are required simultaneously. Multiple line, microphone, and headphone amplifiers share an extensive register-based power-control interface, enabling fine-grained energy management as system use cases change.
Key features of the TLV320AIC3106 include stereo 24-bit ADC and DAC with 102 dBA SNR, integrated 40 mW headphone amplifier, programmable 3D / bass / treble / EQ digital effects, and selectable single-ended or fully-differential analog inputs. The digital serial audio bus supports I2S, left-justified, right-justified, and DSP/PCM modes for flexible connection to virtually any application processor or DSP. An automatic gain control (AGC) block on the ADC path keeps microphone levels stable across varying speech distances.
At the architectural level the device pairs a multi-bit delta-sigma modulator front end with on-chip FIR and IIR engine blocks so that tone control, EQ, and de-emphasis are applied digitally without burdening the host processor. PLL-based clock generation accepts common 12, 13, 24, or 27 MHz system clocks and derives all internal timing from them, simplifying board layout by removing the need for a dedicated audio master crystal in many designs. Extensive register-based power control keeps unused analog blocks powered down until audio paths are activated.
Typical applications span portable media players, portable navigation devices, mobile phones and VoIP handsets, portable gaming, digital still cameras and camcorders, ultrasonic imaging, IP phones and USB headsets, as well as portable audio docks and Bluetooth speakers. The combination of low power, integrated headphone drive, and rich on-chip digital effects makes it equally suitable for stereo playback and full-duplex voice-capture products.
When designing with this part, ensure both the 1.8 V digital and 3.3 V analog rails are well decoupled close to the IC, and that the PLL reference clock is selected to match the chosen MCLK frequency in software. Because the device supports both single-ended and differential microphone paths, designers should populate the unused input pins according to the datasheet reference circuit rather than leaving them floating.
This page synthesizes distributor pricing, drop-in alternatives, and practical design considerations for the TLV320AIC3106IRGZT and its sibling variants into a single design-oriented reference beyond the raw manufacturer datasheet.
USD $4.40
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