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TLV320AIC3256 Datasheet(PDF) 1 Page - Texas Instruments

Part # TLV320AIC3256
Description  Ultra Low Power Stereo Audio Codec With Embedded miniDSP
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TLV320AIC3256 Datasheet(HTML) 1 Page - Texas Instruments

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background image
SPI_Select
IN1_R
IN2_R
IN3_R
IN3_L
IN2_L
IN1_L
Left
ADC
DRC
tpl
Left
DAC
AGC
*
+
+
+
+
*
ADC
Signal
Proc.
DAC
Signal
Proc.
Right
ADC
DRC
tpr
Right
DAC
AGC
*
*
ADC
Signal
Proc.
DAC
Signal
Proc.
+
+
+
+
Vol . Ctrl
Vol . Ctrl
Data
Interface
Gain Adj .
Gain Adj .
0…
+47.5 dB
0.5 dB steps
0…+47.5 dB
0.5 dB
steps
-6...+14dB
1dB steps
-6...+29dB
1dB steps
-6...+29dB
1dB steps
-6...+14dB
1dB steps
SPI / I2C
Control Block
Pin Muxing / Clock Routing
Sec.
I
2S I/F
Primary
I
2S Interface
Dig
Mic
Inter
rupt
PLL
Mic
Bias
Ref
MicBias
Ref
Supplies
miniDSP
miniDSP
HPL
LOL
HPR
LOR
Reset
-30...0 dB
-30...0 dB
Charge
Pump
GND_Sense
MicDet
VNEG
Fly_N
Fly_P
TLV320AIC3256
www.ti.com
SLOS630A – DECEMBER 2010 – REVISED DECEMBER 2010
Ultra Low Power Stereo Audio Codec With Embedded miniDSP
Check for Samples: TLV320AIC3256
1
FEATURES
Future 3.5mm x 3.3mm 42-ball WCSP
2
Stereo Audio DAC with 100dB SNR
APPLICATIONS
5.0mW Stereo 48ksps
Portable Navigation Devices (PND)
DAC-to-Ground-Centered Headphone Playback
Portable Media Player (PMP)
Stereo Audio ADC with 93dB SNR
Mobile Handsets
5.2mW Stereo 48ksps ADC Record
Communication
PowerTune™
Portable Computing
Extensive Signal Processing Options
Acoustic Echo Cancellation (AEC)
Embedded miniDSP
Active Noise Cancellation (ANC)
Six Single-Ended or 3 Fully-Differential Analog
Advanced DSP algorithms
Inputs
Stereo Analog and Digital Microphone Inputs
DESCRIPTION
Ground-Centered Stereo Headphone Outputs
The TLV320AIC3256 (sometimes referred to as the
Very Low-Noise PGA
AIC3256) is a flexible, low-power, low-voltage stereo
audio codec with programmable inputs and outputs,
Low Power Analog Bypass Mode
PowerTune capabilities, fully-programmable miniDSP,
Programmable Microphone Bias
fixed
predefined
and
parameterizable
signal
Programmable PLL
processing blocks, integrated PLL, and flexible digital
interfaces.
5mm x 5mm 40-pin QFN Package
Figure 1. Simplified Block Diagram
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.
2
PowerTune is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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