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AFE8211REP

更新时间： 2024-09-19 19:58:55
品牌 Logo 应用领域
德州仪器 - TI 商用集成电路
页数 文件大小 规格书
46页 621K
描述
SPECIALTY CONSUMER CIRCUIT, PQFP144, 20 X 20 MM, TQFP-144

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AFE8211REP 技术参数

生命周期：Obsolete零件包装代码：QFP
包装说明：HQFP,针数：144
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.84其他特性：ALSO REQUIRES 1.6V TO 2V DIGITAL SUPPLY
商用集成电路类型：CONSUMER CIRCUITJESD-30 代码：S-PQFP-G144
功能数量：1端子数量：144
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HQFP
封装形状：SQUARE封装形式：FLATPACK, HEAT SINK/SLUG
认证状态：Not Qualified最大供电电压 (Vsup)：3.6 V
最小供电电压 (Vsup)：3.14 V表面贴装：YES
温度等级：INDUSTRIAL端子形式：GULL WING
端子位置：QUADBase Number Matches：1

AFE8211REP 数据手册

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AFE8221  
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SBAS394–APRIL 2007  
Dual IF Analog Front End for Digital Radio  
FEATURES  
DESCRIPTION  
•
•
•
Two IF ADCs  
The AFE8221 implements the intermediate  
frequency (IF) sampling and processing functions of  
a digital radio receiver system. It is designed to be  
used with TI's digital radio baseband processors and  
AM/FM tuners. The AFE8221 can also be  
programmed by the baseband processor for use in  
conventional AM/FM and digital radio. This unit  
includes two IF inputs with associated filtering and  
digital processing circuitry.  
Two 12-Bit Auxiliary DACs  
8-Bit Auxiliary ADCs with Four-Channel Input  
MUX  
•
•
Integrated IF Digital Processing Core  
Integrated Circuitry for Third-Overtone Master  
Clock Oscillator  
•
•
•
•
•
Wakeup Circuit/Real-Time Clock with Separate  
Crystal Oscillator  
The receive circuit oversamples the radio tuner IF  
output to reduce noise and improve dynamic range.  
Flexible Data Interface Optimized for TMS  
Family of Digital Baseband Processors  
Pin-Selectable SPI™ and I2C™ Control  
The  
IF  
analog-to-digital  
converter  
(ADC)  
oversamples the IF input at rates up to 75MHz. the  
AFE8221 then digitally mixes, filters, and decimates  
the signal to provide I and Q output signals to the  
baseband processor. A clock oscillator circuit is  
provided that can be used with an appropriate  
third-overtone crystal and external tank circuit to  
generate the sampling clock for the IF ADCs.  
Interfaces  
3.3V/1.8V Supply (Integrated Regulator  
Available to Optionally Generate 1.8V Supply)  
TQFP-144, PowerPAD™ Package  
The AFE8221 also includes a real-time clock and  
associated low-power oscillator circuit. Two auxiliary  
digital-to-analog converters (DACs) are included for  
system control functions. An 8-bit auxiliary ADC and  
input multiplexer (MUX) can be used for system  
diagnostic functions. Other features include 12  
APPLICATIONS  
•
IF-Sampled AM/FM Radio  
•
HD, DAB Digital Radio  
general-purpose  
input/output  
(GPIO)  
lines,  
programmable interrupt generators, and an I2C  
master for communication between the AFE and the  
tuner(s).  
The AFE8221 is available in a TQFP-144 (20mm ×  
20mm) package and uses a 3.3V and a 1.8V power  
supply. An onboard voltage regulator is included to  
optionally generate the 1.8V digital supply for the  
AFE8221.  
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.  
PowerPAD is a trademark of Texas Instruments.  
SPI is a trademark of Motorola, Inc.  
I2C is a trademark of NXP Semiconductors.  
All other 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 © 2007, Texas Instruments Incorporated  
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