TLV320AIC3105_08 Datasheet, PDF (1/95 Pages) Burr-Brown (TI) – LOW-POWER STEREO AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY

BurrĆBrown Products
from Texas Instruments
TLV320AIC3105
SLAS513A – FEBRUARY 2007 – REVISED JULY 2007
LOW-POWER STEREO AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY
FEATURES
• Stereo Audio DAC
– 102-dBA 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
– Flexible Power Saving Modes and
Performance are Available
• Stereo Audio ADC
– 92-dBA Signal-to-Noise Ratio
– Supports Rates From 8 kHz to 96 kHz
– Digital Signal Processing and Noise Filtering
Available During Record
• Six Audio Input Pins
– Six Stereo Single-Ended Inputs
• Six Audio Output Drivers
– Stereo Fully Differential or Single-Ended
Headphone Drivers
– Fully Differential Stereo Line Outputs
• Low Power: 14-mW Stereo 48-kHz Playback
With 3.3-V Analog Supply
• Ultralow-Power Mode with Passive Analog
Bypass
• Programmable Input/Output Analog Gains
• Automatic Gain Control (AGC) for Record
• Programmable Microphone Bias Level
• Programmable PLL for Flexible Clock
Generation
• I²C Control Bus
• Audio Serial Data Bus Supports I²S,
Left/Right-Justified, DSP, and TDM Modes
• Extensive Modular Power Control
• Power Supplies:
– Analog: 2.7 V–3.6 V.
– Digital Core: 1.525 V–1.95 V
– Digital I/O: 1.1 V–3.6 V
• Package: 5-mm × 5-mm 32-Pin QFN
APPLICATIONS
• Digital Cameras
• Smart Cellular Phones
DESCRIPTION
The TLV320AIC3105 is a low-power stereo audio
codec with multiple single-ended inputs and and a
stereo headphone amplifier. The output stages are
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 TLV320AIC3105 contains
integrated microphone bias, digitally controlled stereo
microphone preamplifier, and automatic gain control
(AGC), with mix/mux capability among the multiple
analog inputs. Programmable filters are available
during record which can remove audible noise that
can occur during optical zooming in digital cameras.
The playback path includes mix/mux capability from
the stereo DAC and selected inputs, through
programmable volume controls, to the various
outputs.
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.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated