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Low Power Stereo Audio Codec for Portable Audio/Telephony (Rev. A)
Texas Instruments

Description
The TLV320AIC33 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- headphones using ac-coupling capacitors, or stereo 16- headphones in a capacitorless output configuration. In addition, pairs of drivers can be used to drive 8- speakers in a BTL configuration at 500 mW 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 1.525 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.
Features
Stereo Audio DAC100-dBA Signal-to-Noise Ratio16/20/24/32-Bit DataSupports Rates From 8 kHz to 96 kHz3D/Bass/Treble/EQ/De-emphasis EffectsStereo Audio ADC92-dBA Signal-to-Noise RatioSupports Rates From 8 kHz to 96 kHzTen Audio Input PinsProgrammable in Single-Ended or Fully Differential Configurations3-State Capability for Floating Input ConfigurationsSeven Audio Output DriversStereo 8-, 500-mW/Channel Speaker Drive CapabilityStereo Fully Differential or Single-Ended Headphone DriversFully Differential Stereo Line OutputsFully Differential Mono OutputLow Power: 14-mW Stereo 48-kHz PlaybackWith 3.3-V Analog SupplyProgrammable Input/Output Analog GainsAutomatic Gain Control (AGC) for RecordProgrammable Microphone Bias LevelProgrammable PLL for Flexible Clock GenerationControl Bus Selectable SPI or I2C Audio Serial Data Bus Supports I2S, Left/Right-Justified, DSP, and TDM ModesAlternate Serial PCM/I2S Data Bus for Easy Connection to Bluetooth? ModuleDigital Microphone Input SupportExtensive Modular Power ControlPower Supplies:Analog: 2.7 V-3.6 V.Digital Core: 1.525 V-1.95 VDigital I/O: 1.1 V-3.6 VPackages: 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.

Related Datasheets
Part Number Description Category
? ?TLV320AIC23B Stereo Audio CODEC, 8-to 96-KHz, With Integrated Headphone Amplifier (Rev. H) Passives - Filters, Oscillators and Resonators
? ?TLV320AIC26 Low Power Stereo Audio CODEC w/Headphone/Speaker Amp & 12-Bit Batt/Temp/Aux ADC Passives - Filters, Oscillators and Resonators
? ?TLV320AIC31 Low Power Stereo Audio Codec for Portable Audio/Telephony (Rev. B) Passives - Filters, Oscillators and Resonators
? ?TLV320AIC32 Low Power Stereo Audio Codec for Portable Audio/Telephony (Rev. B) Passives - Filters, Oscillators and Resonators
? ?TLV320AIC34 Four Channel Low Power Audio Codec (Rev. A) Passives - Filters, Oscillators and Resonators
? ?TMS320DM355 TMS320DM355 Digital Media System-on-Chip (DMSoC) (Rev. D) EDA - IC Design
? ?TMS320DM6446 TMS320DM6446 Digital Media System-on-Chip (Rev. E) EDA - IC Design



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