Datasheet > AFE8201PFBR

AFE8201PFBR

更新时间： 2024-11-07 22:10:15

品牌	Logo	应用领域
BB		转换器
页数	文件大小	规格书
20页	218K
描述
IF Analog-to-Digital Converter with Digital Downconverter

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AFE8201PFBR 数据手册

AFE8201

SBWS016A − OCTOBER 2003 − REVISED JANUARY 2005

IF Analog-to-Digital Converter

with Digital Downconverter

F_DEATURES

DESCRIPTION

12-BIT, 80MSPS ADC

INTEGRATED DIGITAL DOWNCONVERTER (DDC):

Quadrature Mixer/NCO

The AFE8201 consists of a general-purpose, 80MSPS,

12-bit analog-to-digital converter (ADC), a digital

downconverter (DDC), and user-programmable digital

filters. It is designed to sample narrowband (2.5MHz or

less) IF signals and digitally mix, filter, and decimate the

signals to baseband.

CIC Decimation Filter

FIR Filters

MIXER: 32-BIT FREQUENCY AND PHASE

DECIMATION RATIO: 32 to 4096

USER PROGRAMMABLE FIR FILTERS WITH

16-BIT COEFFICIENTS

The DDC consists of a digital quadrature mixer followed

by a CIC decimation filter and FIR filters. The mixer

frequency and initial phase are independently

programmed by 32-bit control words.

12-BIT AUXILIARY DAC

DATA INTERFACE COMPATIBLE WITH TI C5x/C6x

DSP BUFFERED SERIAL PORT (McBSP):

Code Composer Module for Easy Software

Generation

After the CIC filter, the internal I and Q signals are

passed on to the first FIR filter, which can implement

even, odd, halfband, and arbitrary impulse responses

with up to 62 taps using 16-bit coefficients.

SPI CONTROL INTERFACE

3.3V ANALOG, 1.8V DIGITAL SUPPLY

1.8V to 3.3V I/O SUPPLY

Following the first FIR filter are two parallel FIR filters

that can be used to provide two output streams or

interleaved to form one extended filter with up to 262

taps. The AFE8201 also contains

12-bit

TQFP-48

general-purpose auxiliary digital-to-analog converter

(DAC) for applications such as AGC amplifier control.

A_DPPLICATIONS

Control register data as well as decimation filter

coefficients are written to the AFE8201 through the

industry-standard SPI control interface. The baseband

output signals are transported through a general-

purpose, high-speed serial interface that is compatible

with TI C5x/C6x DSP family buffered serial ports

(McBSP).

SOFTWARE RADIOS

IF RECEIVE CHANNEL

DIGITAL RADIO RECEIVERS

NARROWBAND RECEIVERS

DOUT0

IFP

12−Bit

Pipeline

ADC

Quadrature

Mixer

CIC Filter

FIR Filter 1

FIR Filter 2A

DOUT1

DFSO

DCLK

DIN

IFM

NCO

FIR Filter 2B

Auxiliary

DAC

AUX

DFSI

Voltage

Reference

Clock

Interface

Timing

Generator

SPI Control

Interface

REFM VCM REFP VGB

MCLK MCLKB PWD SYNC RST_N

SCK MOSI MISO CS_N

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.

All trademarks are the property of their respective owners.

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与AFE8201PFBR相关器件

型号	品牌	获取价格	描述	数据表
AFE8201PFBT	BB	获取价格	IF Analog-to-Digital Converter with Digital Downconverter
AFE8201PFBT	TI	获取价格	1-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PQFP48, PLASTIC, TQFP-48
AFE8211REP	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, PQFP144, 20 X 20 MM, TQFP-144
AFE8220IPZPQ1	TI	获取价格	DUAL INTERMEDIATE FREQUENCY (IF) ANALOG FRONT END FOR DIGITAL RADIO
AFE8220-Q1	TI	获取价格	DUAL INTERMEDIATE FREQUENCY (IF) ANALOG FRONT END FOR DIGITAL RADIO
AFE8220TPZPQ1	TI	获取价格	DUAL INTERMEDIATE FREQUENCY (IF) ANALOG FRONT END FOR DIGITAL RADIO
AFE8221	TI	获取价格	Dual IF Analog Front-End for Digital Radio
AFE8221IRFPQ1	TI	获取价格	DUAL INTERMEDIATE FREQUENCY (IF) ANALOG FRONT-END FOR DIGITAL RADIO
AFE8221-Q1	TI	获取价格	DUAL INTERMEDIATE FREQUENCY (IF) ANALOG FRONT-END FOR DIGITAL RADIO
AFE8221RFP	TI	获取价格	Dual IF Analog Front-End for Digital Radio

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