TLV320AIC33 Datasheet, PDF (1/13 Pages) Texas Instruments – Low Power Stereo Audio Codec for Portable Audio/Telephony

TLV320AIC33
SLAS480 -- MAY 24, 2005
PRELIMINARY INFORMATION REV.17
Low Power Stereo Audio Codec for Portable Audio/Telephony
FEATURES
• STEREO AUDIO DAC
• 103dB-A SIGNAL-TO-NOISE RATIO
• 16/20/24/32-BIT DATA
• SUPPORTS RATES FROM 8-kHz to 96-kHz
• 3D/BASS/TREBLE/EQ/DE-EMPHASIS EFFECTS
• STEREO AUDIO ADC
• 92dB-A SIGNAL-TO-NOISE RATIO
• SUPPORTS RATES FROM 8-kHz TO 96-kHz
• TEN AUDIO INPUT PINS
• PROGRAMMABLE IN SINGLE-ENDED OR FULLY
DIFFERENTIAL CONFIGURATIONS
• TRI-STATE CAPABILITY FOR FLOATING INPUT
CONFIGURATIONS
• SEVEN AUDIO OUTPUT DRIVERS
• STEREO 8-OHM 325mW/CHANNEL SPEAKER
DRIVE CAPABILITY
• STEREO FULLY-DIFFERENTIAL OR SINGLE-
ENDED HEADPHONE DRIVERS
• FULLY DIFFERENTIAL STEREO LINE OUTPUTS
• FULLY DIFFERENTIAL MONO OUTPUT
• LOW POWER: 14mW STEREO 48-kHz PLAYBACK
WITH 3.3V ANALOG SUPPLY
• PROGRAMMABLE INPUT/OUTPUT ANALOG GAINS
• AUTOMATIC GAIN CONTROL (AGC) FOR RECORD
• PROGRAMMABLE MICROPHONE BIAS LEVEL
• PROGRAMMABLE PLL FOR FLEXIBLE CLOCK
GENERATION
• CONTROL BUS SELECTABLE SPI OR I2C
• AUDIO SERIAL DATA BUS SUPPORTS I2S,
LEFT/RIGHT-JUSTIFIED, DSP, AND TDM MODES
• ALTERNATE SERIAL PCM/I2S DATA BUS FOR EASY
CONNECTION TO BLUETOOTH MODULE
• DIGITAL MICROPHONE INPUT SUPPORT
• EXTENSIVE MODULAR POWER CONTROL
• POWER SUPPLIES:
• ANALOG: 2.7V – 3.6V
• DIGITAL CORE: 1.525V – 1.95V
• DIGITAL I/O: 1.1V – 3.6V
• PACKAGES: 5X5MM 80-BGA
7X7MM 48-QFN
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
15mW(TBD) from a 3.3V 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 pre-
amp, 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 cap-less output configuration. In addition,
pairs of drivers can be used to drive 8-Ω speakers in a BTL
configuration at 325mW 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 2-MHz 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
2.7V – 3.6V, a digital core supply of 1.525V – 1.95V, and a
digital I/O supply of 1.1V – 3.6V. The device is available in
5x5mm 80-ball u*jr BGA and 7x7mm 48-lead QFN.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appear at the end of this data sheet.
Copyright © 2005, Texas Instruments Incorporated
The product described herein is a prototype product.
TI makes no warranty, either expressed, implied, or
statutory, including any implied warranty or
merchantability or fitness for a specific purpose, as to
this product.
The information contined here concerns products in the
formative or design phase of development.
Characteristic data and other specifications are design
goals. Texas Instruments reserves the right to change
or discontinue these products without notice.
www.ti.com
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