TLV320AIC3105IRHBT datasheet(3/103 Pages) TI1

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TLV320AIC3105

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SLAS513C – FEBRUARY 2007 – REVISED DECEMBER 2014

5 Description (Continued)

The TLV320AIC3105 contains four high-power output drivers as well as two fully differential output drivers. The

high-power output drivers are capable of driving a variety of load configurations, including up to four channels of

single-ended 16-

Ω headphones using ac-coupling capacitors, or stereo 16-Ω headphones in a capacitorless

output configuration.

The stereo audio DAC supports sampling rates from 8 kHz to 96 kHz and includes programmable digital filtering

in the DAC path for 3D, bass, treble, midrange effects, speaker equalization, and de-emphasis for 32-kHz, 44.1-

kHz, and 48-kHz rates. The stereo audio ADC supports sampling rates from 8 kHz to 96 kHz and is preceded by

programmable gain amplifiers or AGC that can provide up to 59.5-dB analog gain for low-level microphone

inputs. The TLV320AIC3105 provides an extremely high range of programmability for both attack (8–1,408 ms)

and for decay (0.05–22.4 seconds). This extended AGC range allows the AGC to be tuned for many types of

applications.

For battery saving applications where neither analog nor digital signal processing are required, the device can be

put in a special analog signal passthrough mode. This mode significantly reduces power consumption, as most of

the device is powered down during this passthrough operation.

The serial control bus supports the I2C protocol, while the serial audio data bus is programmable for I2S,

left/right-justified, DSP, or TDM modes. A highly programmable PLL is included for flexible clock generation and

support for all standard audio rates from a wide range of available MCLKs, varying from 512 kHz to 50 MHz, with

special attention paid to the most popular cases of 12-MHz, 13-MHz, 16-MHz, 19.2-MHz, and 19.68-MHz system

clocks.

The TLV320AIC3105 operates from an analog supply of 2.7 V–3.6 V, a digital core supply of 1.525 V–1.95 V,

and a digital I/O supply of 1.1 V–3.6 V. The device is available in a 5-mm × 5-mm 32-pin QFN package.

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