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AFE8221IRFPQ1 PDF预览

AFE8221IRFPQ1

更新时间: 2024-02-08 13:06:49
品牌 Logo 应用领域
德州仪器 - TI 电信集成电路电信电路
页数 文件大小 规格书
59页 1026K
描述
DUAL INTERMEDIATE FREQUENCY (IF) ANALOG FRONT-END FOR DIGITAL RADIO

AFE8221IRFPQ1 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFP
包装说明:HTFQFP,针数:64
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:1.66JESD-30 代码:S-PQFP-G144
JESD-609代码:e4长度:20 mm
湿度敏感等级:3功能数量:1
端子数量:64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:HTFQFP封装形状:SQUARE
封装形式:FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified筛选级别:AEC-Q100
座面最大高度:1.2 mm标称供电电压:1.8 V
表面贴装:YES电信集成电路类型:TELECOM CIRCUIT
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:20 mmBase Number Matches:1

AFE8221IRFPQ1 数据手册

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AFE8221-Q1  
www.ti.com ........................................................................................................................................................................................... SBAS434DECEMBER 2008  
DUAL INTERMEDIATE FREQUENCY (IF) ANALOG FRONT-END FOR DIGITAL RADIO  
1
FEATURES  
Flexible Data Interface Optimized for TMS  
Family of Digital Baseband Processors  
Pin-Selectable SPI™ and I2C™ Control  
Interfaces  
234  
Qualified for Automotive Applications  
Two Intermediate Frequency (IF)  
Analog-to-Digital Converters (ADCs)  
3.3-V/1.8-V Supply (Integrated Regulator  
Available to Optionally Generate 1.8-V Supply)  
Two 12-Bit Auxiliary Digital-to-Analog  
Converters (DACs)  
TQFP-144 (RFP) PowerPAD™ Package  
8-Bit Auxiliary ADCs with Four-Channel Input  
Multiplexer (MUX)  
APPLICATIONS  
Integrated IF Digital Processing Core  
IF-Sampled AM/FM Radio  
Hybrid Digital (HD) Digital Audio Broadcasting  
(DAB) Digital Radio  
Integrated Circuitry for Third-Overtone Master  
Clock Oscillator  
Wakeup Circuit/Real-Time Clock With Separate  
Crystal Oscillator  
DESCRIPTION  
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.  
The receive circuit oversamples the radio tuner IF output to reduce noise and improve dynamic range. The IF  
analog-to-digital converter (ADC) oversamples the IF input at rates up to 75 MHz. 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.  
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 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 (20 mm × 20 mm) package and uses a 3.3-V and a 1.8-V power  
supply. An onboard voltage regulator is included to optionally generate the 1.8-V digital supply for the AFE8221.  
ORDERING INFORMATION(1)  
TA  
PACKAGE(2)  
ORDERABLE PART NUMBER  
TOP-SIDE MARKING  
AFE8221Q  
–40°C to 85°C  
HTQFP – RFP  
Tray of 60  
AFE8221IRFPQ1  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
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
3
4
PowerPAD is a trademark of Texas Instruments.  
SPI is a trademark of Motorola, Inc.  
I2C is a trademark of NXP Semiconductors.  
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 © 2008, Texas Instruments Incorporated  

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