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PCM3052ARTFG4 PDF预览

PCM3052ARTFG4

更新时间： 2024-12-01 04:10:59
品牌 Logo 应用领域
BB 解码器编解码器放大器
页数 文件大小 规格书
45页 601K
描述
24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA

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PCM3052ARTFG4 数据手册

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PCM3052A  
SLES160–NOVEMBER 2005  
24-BIT, 96-kHz STEREO AUDIO CODEC WITH  
MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA  
FEATURES  
•
Multiple Functions With I2C Interface:  
– Digital De-Emphasis: 32-, 44.1-, 48-kHz  
•
Microphone Amplifier and Bias  
– Monaural Microphone Amplifier: 34-dB Gain  
at Differential Input  
– Zipper-Noise-Free Digital Attenuation and  
Soft Mute for DAC  
– Microphone Bias: 1 mA at 3.75 V  
Multiplexer and PGA  
– HPF Bypass Control for ADC  
– S/PDIF Output Control  
•
– Multiplex of Stereo Single-Ended Line  
Inputs and Monaural Microphone Amplifier  
– Power Down: ADC/DAC Independently  
External Power-Down Pin:  
– ADC/DAC Simultaneously  
Audio Data Format: 24-Bit I2S Only  
Sampling Rate:  
•
– 0.1 Vrms to 1.5 Vrms Full-Scale Input Range  
– 22-kΩ Input Resistance at 0.1-Vrms Input  
– 20 dB to –4 dB/range, 1 dB/step PGA  
Reference Output: ±10 mA at 2.5 V  
24-Bit Delta-Sigma ADC and DAC  
Stereo ADC:  
•
•
•
•
•
– 16–96 kHz for Both ADC and DAC  
System Clock: 256 fS Only  
Dual Power Supplies:  
•
•
– Full-Scale Input: 3 Vp-p  
– 5 V for Analog and 3.3 V for Digital  
Package: VQFN-32  
– Antialiasing Filter Included  
•
– 1/64 Decimation Filter:  
• Pass-Band Ripple: ±0.05 dB  
• Stop-Band Attenuation: –65 dB  
DESCRIPTION  
The PCM3052A is a low-cost, single-chip, 24-bit  
stereo audio codec (ADC and DAC) with  
single-ended analog voltage input and output. It also  
has an analog front end consisting of a 34-dB  
microphone amplifier, microphone bias generator, 2  
stereo multiplexers, and a wide-range PGA. Analog-  
to-digital converters (ADCs) employ delta-sigma  
modulation with 64-times oversampling. On the other  
hand, digital-to-analog converters (DACs) employ  
modulation with 64- and 128-times oversampling.  
ADCs include a digital decimation filter with a  
high-pass filter, and DACs include an 8-times  
– On-Chip High-Pass Filter: 0.91 Hz at  
fS = 48 kHz  
– High Performance:  
• THD+N: –94 dB (Typical)  
• SNR: 101 dB (Typical)  
• Dynamic Range: 101 dB (Typical)  
Stereo DAC:  
•
– Single-Ended Voltage Output: 4 Vp-p  
– Analog Low-Pass Filter Included  
– ×8 Oversampling Digital Filter:  
• Pass-Band Ripple: ±0.03 dB  
• Stop-Band Attenuation: –50 dB  
– High Performance:  
oversampling  
digital  
interpolation  
filter.  
The  
PCM3052A has many functions which are controlled  
using the I2C interface: DAC digital de-emphasis,  
digital attenuation, soft mute etc. The PCM3052A  
also has an S/PDIF output pin for the DAC digital  
input. The power-down mode, which works on ADCs  
and DACs simultaneously, is provided by an external  
pin. The PCM3052A is suitable for a wide variety of  
cost-sensitive PC audio (recorder and player)  
applications where good performance is required.  
The PCM3052A is fabricated using a highly advanced  
CMOS process and is available in a small 32-pin  
VQFN package.  
• THD+N: –97 dB (Typical)  
• SNR: 105 dB (Typical)  
• Dynamic Range: 104 dB (Typical)  
•
S/PDIF Output for DAC Digital Input  
A
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.  
System Two, Audio Precision are trademarks of Audio Precision, Inc.  
All trademarks are the property of their respective owners.  
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 © 2005, Texas Instruments Incorporated  
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