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TLV320AIC3104_14

更新时间： 2024-11-24 02:58:35
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德州仪器 - TI /
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91页 1165K
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Low-Power Stereo Audio Codec

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TLV320AIC3104  
www.ti.com  
SLAS510C –FEBRUARY 2007–REVISED DECEMBER 2010  
LOW-POWER STEREO AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY  
Check for Samples: TLV320AIC3104  
1
FEATURES  
–
–
Digital Core: 1.525 V–1.95 V  
Digital I/O: 1.1 V–3.6 V  
•
Stereo Audio DAC  
–
–
–
102-dBA Signal-to-Noise Ratio  
16/20/24/32-Bit Data  
•
Package: 5-mm × 5-mm 32-Pin QFN  
APPLICATIONS  
Supports Sample Rates From 8 kHz to 96  
kHz  
•
•
•
•
•
•
Digital Cameras  
Smart Cellular Phones  
PDAs  
Portable Computing  
Communication  
Entertainment Applications  
–
–
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 Sample Rates From 8 kHz to 96  
kHz  
DESCRIPTION  
The TLV320AIC3104 is a low-power stereo audio  
codec with stereo headphone amplifier, as well as  
multiple inputs and outputs that 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.  
–
Digital Signal Processing and Noise  
Filtering Available During Record  
•
•
Six Audio Input Pins  
–
–
One Stereo Pair of Single-Ended Inputs  
One Stereo Pair of Fully Differential Inputs  
Six Audio Output Drivers  
–
Stereo Fully Differential or Single-Ended  
Headphone Drivers  
The record path of the TLV320AIC3104 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.  
–
Fully Differential Stereo Line Outputs  
•
•
Low Power: 14-mW Stereo 48-kHz Playback  
With 3.3-V Analog Supply  
Ultra-Low-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  
The TLV320AIC3104 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  
capacitor-free output configuration.  
•
•
•
•
Extensive Modular Power Control  
Power Supplies:  
–
Analog: 2.7 V–3.6 V.  
1
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 © 2007–2010, Texas Instruments Incorporated  
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