TLV320AIC33

具有 6 个输入、7 个输出的低功耗立体声编解码器，集成耳机与扬声器，具备 3D 效果

The is a low power stereo audio codec with stereo headphone amplifier, as well as 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 3.3-V analog supply, making it ideal for portable battery-powered audio and telephony applications.

The record path of the TLV320AIC33 contains integrated microphone bias, digitally controlled stereo microphone preamplifier, and automatic gain control AGC, with mix/mux capability among the multiple analog inputs. The playback path includes mix/mux capability from the stereo DAC and selected inputs, through programmable volume controls, to the various outputs.

The TLV320AIC33 contains four high-power output drivers as well as three 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. In addition, paris of drivers can be used to drive 8-Ω speakers in a BTL configuration at 500 nW per channel.

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 providing up to +59.5-dB analog gain for low-level microphone inputs.

The serial control bus supports SPI or I2C protocols, 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 TLV320AIC33 operates from an analog supply of 2.7 V-3.6 V, a digital core supply of 1.65 V-1.95 V, and a digital I/O supply of 1.1 V-3.6 V. The device is available in 5 × 5-mm, 80-ball MicroStar Junior™ BGA and 7 × 7-mm, 48-lead QFN.

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Stereo Audio DAC

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100-dBA Signal-to-Noise Ratio

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16/20/24/32-Bit Data

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Supports Rates From 8 kHz to 96 kHz

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3D/Bass/Treble/EQ/De-emphasis Effects

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Stereo Audio ADC

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92-dBA Signal-to-Noise Ratio

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Supports Rates From 8 kHz to 96 kHz

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Ten Audio Input Pins

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Programmable in Single-Ended or Fully Differential Configurations

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3-State Capability for Floating Input Configurations

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Seven Audio Output Drivers

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Stereo 8-, 500-mW/Channel Speaker Drive Capability

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Stereo Fully Differential or Single-Ended Headphone Drivers

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Fully Differential Stereo Line Outputs

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Fully Differential Mono Output

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Low Power: 14-mW Stereo 48-kHz PlaybackWith 3.3-V Analog Supply

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Programmable Input/Output Analog Gains

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Automatic Gain Control AGC for Record

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Programmable Microphone Bias Level

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Programmable PLL for Flexible Clock Generation

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Control Bus Selectable SPI or I2C

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Audio Serial Data Bus Supports I2S, Left/Right-Justified, DSP, and TDM Modes

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Alternate Serial PCM/I2S Data Bus for Easy Connection to Bluetooth™ Module

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Digital Microphone Input Support

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Extensive Modular Power Control

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Power Supplies:

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Analog: 2.7 V-3.6 V.

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Digital Core: 1.65 V-1.95 V

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Digital I/O: 1.1 V-3.6 V

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Packages: 5 × 5 mm 80-VFBGA; 7 × 7 mm 48-QFN

MicroStar Junior is a trademark of Texas Instruments.

Bluetooth is a trademark of Bluetooth SIG, Inc.