Maker : Analog Devices
Part No. : AD6642

Datasheet PDF : AD6642.pdf
Cross Reference : AD6642 Cross Reference
Buy Component : AD6642 Find Stock and Price

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Product Information

Dual IF Receiver AD6642 FEATURES 11-bit, 200 MSPS output data rate per channel Integrated noise shaping requantizer (NSR) Performance with NSR enabled SNR: 75.5 dBFS in 40 MHz band to 70 MHz @ 185 MSPS SNR: 73.7 dBFS in 60 MHz band to 70 MHz @ 185 MSPS Performance with NSR disabled SNR: 66.5 dBFS to 70 MHz @ 185 MSPS SFDR: 83 dBc to 70 MHz @ 185 MSPS Low power: 0.62 W @ 185 MSPS 1.8 V analog supply operation 1.8 V LVDS (ANSI-644 levels) output 1-to-8 integer clock divider Internal ADC voltage reference 1.75 V p-p analog input range (programmable to 2.0 V p-p) Differential analog inputs with 800 MHz bandwidth 95 dB channel isolation/crosstalk Serial port control User-configurable built-in self-test (BIST) capability Energy-saving power-down modes FUNCTIONAL BLOCK DIAGRAM AVDD AGND DRVDD DRGND AD6642 VIN+A VIN–A VCMA VIN+B VIN–B VCMB REFERENCE CLOCK DIVIDER SERIAL PORT PIPELINE ADC 14 NOISE SHAPING REQUANTIZER 11 PIPELINE ADC 14 NOISE SHAPING REQUANTIZER 11 DATA MULTIPLEXER AND LVDS DRIVERS DC0±AB D0±AB D10±AB MODE SYNC PDWN 08563-001 SCLK SDIO CSB CLK+ CLK– Figure 1. PRODUCT HIGHLIGHTS 1. 2. Two ADCs are contained in a small, space-saving, 10 mm × 10 mm × 1.4 mm, 144-ball CSP_BGA package. Pin selectable noise shaping requantizer (NSR) function that allows for improved SNR within a reduced bandwidth of up to 60 MHz at 185 MSPS. LVDS digital output interface configured for low cost FPGA families. 120 mW per ADC core power consumption. Operation from a single 1.8 V supply. Standard serial port interface (SPI) that supports various product features and functions, such as data formatting (offset binary or twos complement), NSR, power-down, test modes, and voltage reference mode. On-chip integer 1-to-8 input clock divider and multichip sync function to support a wide range of clocking schemes and multichannel subsystems. APPLICATIONS Communications Diversity radio and smart antenna (MIMO) systems Multimode digital receivers (3G) WCDMA, LTE, CDMA2000 WiMAX, TD-SCDMA I/Q demodulation systems General-purpose www.DataSheet4U.com software radios 3. 4. 5. 6. 7. 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 owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved. AD6642 TABLE OF CONTENTS Features .............................................................................................. 1  Applications ....................................................................................... 1  Functional Block Diagram .............................................................. 1  Product Highlights ........................................................................... 1  Revision History ............................................................................... 2  General Description ......................................................................... 3  Specifications..................................................................................... 4  DC Specifications ......................................................................... 4  AC Specifications.......................................................................... 5  Digital Specifications ................................................................... 6  Switching Specifications .............................................................. 7  Timing Specifications .................................................................. 8  Absolute Maximum Ratings.....

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