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TLV320AIC3105

更新时间： 2024-11-08 05:29:11
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93页 1176K
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LOW-POWER STEREO AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY

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TLV320AIC3105 数据手册

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TLV320AIC3105  
SLAS513A–FEBRUARY 2007–REVISED JULY 2007  
LOW-POWER STEREO AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY  
FEATURES  
APPLICATIONS  
•
Digital Cameras  
•
Stereo Audio DAC  
•
Smart Cellular Phones  
–
–
–
–
–
102-dBA Signal-to-Noise Ratio  
16/20/24/32-Bit Data  
DESCRIPTION  
Supports Rates From 8 kHz to 96 kHz  
3D/Bass/Treble/EQ/De-Emphasis Effects  
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.  
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  
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.  
•
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  
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.  
•
•
•
•
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,  
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  
•
•
Left/Right-Justified, DSP, and TDM Modes  
•
Extensive Modular Power Control  
Power Supplies:  
•
from  
8 kHz to 96 kHz and is preceded by  
–
–
–
•
Analog: 2.7 V–3.6 V.  
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.  
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  
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  
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