AD9874

PRODUCTION

Low Power IF Digitizing Subsystem

Data Sheet (Rev. A) Product Selection Table

Part Models: 2
1ku List Price: Starting From $19.44

Viewing:

Overview

10-300 MHz Input Frequency
Baseband (I/Q) Digital Output
2.7-3.6 Supply Voltage
10-270 KHz Output Signal Bandwidth
8 dB SSB NF
+1 dBm IIP3 (typ, max. bias)

95 dB Dynamic Range with 12 dB Continuous AGC Range Enabled
-18 or -30 dBm max IF Input with AGC Disabled
LO and Clock Sampling Synthesizers
Programmable Decimation Factor, Output Format, AGC, and Synthesizer settings

The AD9874 is a general purpose IF subsystem that digitizes a low level 10-300MHz IF input signal with a bandwidth of up to 270 kHz. The signal chain of the AD9874 contains a low-noise amplifier, mixer, a band pass sigma-delta analog-to-digital converter and a decimation filter with programmable decimation factor. An automatic gain control (AGC) circuit provides the AD9874 with 12 dB of continuous gain adjustment.

The high dynamic range and inherent anti-aliasing provided by the bandpass sigma delta converter allows the AD9874 to cope with blocking signals 95 dB stronger than the desired signal. Auxiliary blocks include clock and LO synthesizers in addition to a serial peripheral interface port.

The SPI port programs numerous parameters of the AD9874, thus 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. The bias currents of the LNA and mixer can be further reduced at the expense of degraded performance for battery-powered applications.

APPLICATIONS

Multimode Narrow-Band Radio Products
- Analog/Digital UHF/VHF FDMA Receivers
- TETRA, APCO25, GSM/EDGE
Portable and Mobile Radio Products
Base Station Applications
SATCOM Terminals

Part Models: 2
1ku List Price: Starting From $19.44

Documentation

Data Sheet 1

AD9874: IF Digitizing Subsystem Data Sheet (Rev.A) 09/06/2002

Technical Articles 3

Low-Power IC Digitizes 300 MHz IF 01/02/2002

Designing Power Supplies for High Speed ADC 02/01/2012

Maximizing the Dynamic Range of Software-Defined Radio 11/01/2014

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD9874ABST	48-Lead LQFP (7mm x 7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9874ABSTRL	48-Lead LQFP (7mm x 7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Dec 7, 2016 - 16_0033 Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select QFP Products
		PCN16_0033_Form Material_Report Qualification Results Summary Qualification Results Summary Qualification Results Summary Test Correlation Report
AD9874ABST	PRODUCTION
AD9874ABSTRL	PRODUCTION
Jan 5, 2009 - 07_0077 Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages
		07_0077Rev D_LQFP_Dec17 07_0077Rev D_MQFP_Dec15 07_0077Rev D_Obsolesence_Dec15 07_0077Rev D_TQFP_Dec15 Material_Report PCN07_0077_Form QFP Transfer Qualification Results-tests_DEC12CL
AD9874ABST	PRODUCTION
AD9874ABSTRL	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Evaluation Kits

Evaluation Board for AD9864 and AD9874

Buy Now View Details

Product Details

The AD9864/AD9874-EBZ evaluation board and its accompanying software provide a simple means to evaluate this highly integrated IC. The AD9864 and AD9874 are general-purpose IF subsystem that digitizes a low level 10 MHz–300 MHz IF input with signal bandwidths ranging from 6.8 kHz to 270 kHz. The AD9864/AD9874-EBZ is a flexible design that allows the user to configure it for different potential applications. In the IF input signal path, component pads are available to implement different IF impedance matching networks. The LO and CLK signals can be externally applied or internally derived from on-board VCO circuits . The reference for the on-chip LO and CLK synthesizers can be applied via the external FREF input or an on-board 26 MHz crystal oscillator (XO).

The evaluation board is designed to interface to Analog Devices high speed converter evaluation platform (HSC-ADC-EVALCZ) for data capture and control but can easily be interfaced to other FPGA, DSP or micro-controller development platforms via its general purpose connector. A simple software SPI control GUI provides an easy means of configuring the AD9864/AD9874. Analog Devices VisualAnalog software is used for real time data analysis.

Resources

AD9864/AD9874: Design Tools and Demo/Evaluation Platform
12/21/2015

Latest Discussions

2 Years Ago

4 Years Ago

5 Years Ago