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The TLV320AIC3101 is a low-power stereo audio codec with a stereo headphone amplifier, and multiple inputs and outputs, programmable in single-ended or fully differential configurations. Extensive register-based power control is included, enabling stereo 48 kHz DAC playback as low as 14 mW from a 3.3V analog supply, making it ideal for portable battery-powered audio and telephony applications.

The recording path of the TLV320AIC3101 includes integrated microphone bias, digitally controlled stereo microphone preamps, and automatic gain control (AGC), with the ability to mix/multiple outputs among multiple analog inputs. Programmable filters are available during recording to remove acoustic noise that can occur during optical amplification in digital cameras. The playback path includes mixing/mux capability from a stereo DAC and selected inputs to various outputs via programmable volume controls.

The TLV320AIC3101 contains four high-power output drivers as well as two fully differential output drivers. The high-power output driver is capable of driving a variety of load configurations, including four channels of single-ended 16Ω headphones using AC-coupling capacitors, or 16Ω stereo headphones in a non-blocking output configuration. Additionally, dual drivers can be used to drive 8-Ω speakers at 500 MW per channel in BTL configuration.

Stereo audio DAC supports sample rates from 8 kHz to 96 kHz and includes programmable digital filtering in the DAC path for 3D, bass, treble, mid-range effects, speaker equalization, and emphasis 32 kHz, 44.1 kHz and 48 kHz sample rate. The stereo audio analog-to-digital converter supports sample rates from 8 kHz to 96 kHz and is preceded by a programmable gain amplifier or AGC that provides up to 59.5-dB of analog gain for low-level microphone inputs. The TLV320AIC3101 provides extremely high programmable ranges for attack (8-1, 408 ms) and decay (0.05-22.4 seconds). This extended AGC range allows tuning of the AGC for many types of applications.

For battery-saving applications that require neither analog nor digital signal processing, the device can be placed in a special analog signaling mode. This mode significantly reduces power consumption since most devices are powered down during this pass-through 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 includes flexible clock generation and supports all standard audio frequencies from a wide range of available MCLKs, from 512 kHz to 50 MHz, with special attention to the most popular cases, 12 MHz, 13 MHz, 16 MHz, 19.2 MHz and 19.68 MHz system clock.

TLV320AIC3101 consists of 2.7V-3.6V analog power supply, 1.525V-1.95V digital core power supply and 1.1V-3.6V digital I/O power supply.

Stereo dac 102-dba SNR 16/20/24/32-bit data Support sample rates from 8 kHz to 96 kHz, 3d/Bass/Treble/eq/dq/de-emphasis effects, flexible power saving modes and performance is available stereo audio adc 92-dba signal to noise ratio supports sample rates from 8 khz to sample rate. 6 audio input pins in 96 khz digital signal processing and noise filtering record One stereo pair single ended input

One stereo pair fully differential input, six audio output drivers, stereo fully differential or single-ended headphone driver fully differential stereo line output Stereo 8-Ω, 500 mW/channel speaker drive capability Low power consumption: 14 mW stereo 48 kHz playback, 3.3V Analog Supply Ultra Low Power Mode Passive Analog Bypass Programmable Input and Output Analog Gain Automatic Gain Control (AGC) Recording Programmable Microphone Bias Level Programmable Phase Locked Loop Flexible Clock Generation I2C Control Bus Audio Serial Data Bus Support I2S, Left/Right, DSP, Digital Core: 1.525 V-1.95 V Digital I/O: 1.1V-3.6V Package: 5 mm×5 mm 32 pin QFN