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Analog Devices Semiconductor Electronic Components Datasheet

AD6673 Datasheet

Dual IF Receiver

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AD6673 pdf
Data Sheet
80 MHz Bandwidth, Dual IF Receiver
AD6673
FEATURES
JESD204B Subclass 0 or Subclass 1 coded serial digital outputs
Signal-to-noise ratio (SNR) = 71.9 dBFS at 185 MHz AIN and
250 MSPS with NSR set to 33%
Spurious-free dynamic range (SFDR) = 88 dBc at 185 MHz
AIN and 250 MSPS
Total power consumption: 707 mW at 250 MSPS
1.8 V supply voltages
Integer 1-to-8 input clock divider
Sample rates of up to 250 MSPS
IF sampling frequencies of up to 400 MHz
Internal analog-to-digital converter (ADC) voltage reference
Flexible analog input range
1.4 V p-p to 2.0 V p-p (1.75 V p-p nominal)
ADC clock duty cycle stabilizer (DCS)
95 dB channel isolation/crosstalk
Serial port control
Energy saving power-down modes
APPLICATIONS
Communications
Diversity radio and smart antenna (MIMO) systems
Multimode digital receivers (3G)
TD-SCDMA, WiMAX, WCDMA,
CDMA2000, GSM, EDGE, LTE
I/Q demodulation systems
General-purpose software radios
VIN+A
VIN–A
VCM
VIN+B
VIN–B
SYSREF±
SYNCINB±
CLK±
RFCLK
FUNCTIONAL BLOCK DIAGRAM
AVDD DRVDD DVDD
AGND DGND DRGND
PIPELINE
11-BIT ADC
PIPELINE
11-BIT ADC
NSR
NSR
JESD-204B
INTERFACE
HIGH
SPEED
SERIALIZERS
AD6673
CML, TX
OUTPUTS
SERDOUT0±
SERDOUT1±
CLOCK
GENERATION
CONTROL
REGISTERS
CMOS
DIGITAL
INPUT
CMOS
DIGITAL
INPUT/OUTPUT
FAST
DETECT
CMOS
DIGITAL
OUTPUT
PDWN
FDA
FDB
RST
SDIO SCLK CS
Figure 1.
PRODUCT HIGHLIGHTS
1. The configurable JESD204B output block with an integrated
phase-locked loop (PLL) to support up to 5 Gbps per lane
with up to two lanes.
2. IF receiver includes two, 11-bit, 250 MSPS ADCs with
programmable noise shaping requantizer (NSR) function that
allows for improved SNR within a reduced bandwidth of 22%
or 33% of the sample rate.
3. Support for an optional RF clock input to ease system board
design.
4. Proprietary differential input maintains excellent SNR
performance for input frequencies of up to 400 MHz.
5. An on-chip integer, 1-to-8 input clock divider and SYNC
input allows synchronization of multiple devices.
6. Operation from a single 1.8 V power supply.
7. Standard serial port interface (SPI) that supports various
product features and functions, such as controlling the clock
DCS, power-down, test modes, voltage reference mode,
overrange fast detection, and serial output configuration.
This product may be protected by one or more U.S. or international patents.
Rev. C
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2012–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

AD6673 Datasheet

Dual IF Receiver

No Preview Available !

AD6673 pdf
AD6673
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 3
General Description ......................................................................... 4
Specifications..................................................................................... 5
ADC DC Specifications ............................................................... 5
ADC AC Specifications ............................................................... 6
Digital Specifications ................................................................... 7
Switching Specifications .............................................................. 9
Timing Specifications ................................................................ 10
Absolute Maximum Ratings.......................................................... 11
Thermal Characteristics ............................................................ 11
ESD Caution................................................................................ 11
Pin Configuration and Function Descriptions........................... 12
Typical Performance Characteristics ........................................... 14
Equivalent Circuits ......................................................................... 16
Theory of Operation ...................................................................... 18
ADC Architecture ...................................................................... 18
Analog Input Considerations.................................................... 18
Voltage Reference ....................................................................... 20
Clock Input Considerations ...................................................... 20
Power Dissipation and Standby Mode..................................... 23
Noise Shaping Requantizer ........................................................... 24
22% Bandwidth Mode (>40 MHz at 184.32 MSPS) .............. 24
Data Sheet
33% Bandwidth Mode (>60 MHz at 184.32 MSPS) .............. 25
Digital Outputs ............................................................................... 26
JESD204B Transmit Top Level Description............................ 26
JESD204B Overview .................................................................. 26
Synchronization.......................................................................... 27
ADC Overrange and Gain Control.......................................... 33
ADC Overrange (OR)................................................................ 33
Gain Switching............................................................................ 33
DC Correction ................................................................................ 35
DC Correction Bandwidth........................................................ 35
DC Correction Readback.......................................................... 35
DC Correction Freeze................................................................ 35
DC Correction (DCC) Enable Bits .......................................... 35
Serial Port Interface (SPI).............................................................. 36
Configuration Using the SPI..................................................... 36
Hardware Interface..................................................................... 36
SPI Accessible Features.............................................................. 37
Memory Map .................................................................................. 38
Reading the Memory Map Register Table............................... 38
Memory Map Register Table..................................................... 39
Memory Map Register Description ......................................... 43
Applications Information .............................................................. 44
Design Guidelines ...................................................................... 44
Outline Dimensions ....................................................................... 45
Ordering Guide .......................................................................... 45
Rev. C | Page 2 of 45


Part Number AD6673
Description Dual IF Receiver
Maker Analog Devices
Total Page 30 Pages
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