AD9864BCPZ

更新时间： 2024-11-08 23:16:19

品牌	Logo	应用领域
亚德诺 - ADI		电信集成电路电信电路 PC
页数	文件大小	规格书
44页	1734K
描述
IF Digitizing Subsystem

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AD9864BCPZ 数据手册

IF Digitizing Subsystem

AD9864*

PRODUCT OVERVIEW

FEATURES

The AD9864 is a general-purpose IF subsystem that digitizes a

low level 10 MHz to 300 MHz IF input with a signal bandwidth

ranging from 6.8 kHz to 270 kHz. The signal chain of the

AD9864 consists of a low noise amplifier (LNA), a mixer, a

band-pass Σ-∆ analog-to-digital converter (ADC), and a deci-

mation filter with programmable decimation factor. An auto-

matic gain control (AGC) circuit gives the AD9864 12 dB of

continuous gain adjustment. Auxiliary blocks include both

clock and LO synthesizers.

10 MHz to 300 MHz input frequency

6.8 kHz to 270 kHz output signal bandwidth

7.5 dB SSB NF

–7.0 dBm IIP3

AGC free range up to –34 dBm

12 dB continuous AGC range

16 dB front end attenuator

Baseband I/Q 16-bit (or 24-bit) serial digital output

LO and sampling clock synthesizers

Programmable decimation factor, output format,

AGC, and sythesizer settings

370 Ω input impedance

The high dynamic range of the AD9864 and inherent antialias-

ing provided by the band-pass Σ-∆ converter allow the device to

cope with blocking signals up to 95 dB stronger than the desired

signal. This attribute often reduces the cost of a radio by reduc-

ing IF filtering requirements. Also, it enables multimode radios

of varying channel bandwidths, allowing the IF filter to be

specified for the largest channel bandwidth.

2.7 V to 3.6 V supply voltage

Low current consumption: 17 mA

48-lead LFCSP package

APPLICATIONS

The SPI® port programs numerous parameters of the AD9864,

allowing the device to be optimized for any given application.

Programmable parameters include synthesizer divide ratios,

AGC attenuation and attack/decay time, received signal

strength level, decimation factor, output data format, 16 dB

attenuator, and the selected bias currents.

Multimode narrow-band radio products

Analog/digital UHF/VHF FDMA receivers

TETRA, APCO25, GSM/EDGE

Portable and mobile radio products

SATCOM terminals

The AD9864 is available in a 48-lead LFCSP package and

operates from a single 2.7 V to 3.6 V supply. The total power

consumption is typically 56 mW and a power-down mode is

provided via serial interfacing.

*Protected by U.S. Patent No. 5,969,657; other patents pending.

FUNCTIONAL BLOCK DIAGRAM

MXOP MXON IF2P IF2N

GCP GCN

DAC

AGC

AD9864

–16dB

LNA

DECIMATION

FILTER

∑-∆ ADC

FORMATTING/SSI

DOUTA

DOUTB

IFIN

CLKOUT

FREF

CONTROL LOGIC

VOLTAGE

CLK SYN

SYN

REFERENCE

SPI

IOUTL

LOP LON

IOUTC CLKP

LOOP FILTER

CLKN VREFP VCM VREFN PC PD PE

SYNCB

LO VCO AND

LOOP FILTER

Figure 1. AD9864 Block Diagram

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective companies.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

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AD9864BCPZ 替代型号

型号	品牌	替代类型	描述	数据表
AD9864BCPZRL	ADI	类似代替	IF Digitizing Subsystem

与AD9864BCPZ相关器件

型号	品牌	获取价格	描述	数据表
AD9864BCPZRL	ADI	获取价格	IF Digitizing Subsystem
AD9864-EB	ADI	获取价格	IF Digitizing Subsystem
AD9864-EBZ	ADI	获取价格	IF Digitizing Subsystem
AD9865	ADI	获取价格	Broadband Modem Mixed-Signal Front End
AD9865BCP	ADI	获取价格	Broadband Modem Mixed-Signal Front End
AD9865BCPRL	ADI	获取价格	Broadband Modem Mixed-Signal Front End
AD9865BCPZ	ADI	获取价格	Broadband Modem Mixed-Signal Front End
AD9865BCPZ1	ADI	获取价格	Broadband Modem Mixed-Signal Front End
AD9865BCPZRL	ADI	获取价格	Broadband Modem Mixed-Signal Front End
AD9865BCPZRL1	ADI	获取价格	Broadband Modem Mixed-Signal Front End

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