AD6649BCPZ Analog Devices Inc, AD6649BCPZ Datasheet - Page 2

• Manufacturer Part Number: AD6649BCPZ
• Description: IC IF RCVR 14BIT 250MSPS 64LFCSP
• Manufacturer: Analog Devices Inc

Specifications of AD6649BCPZ

• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Resolution (bits): 14bit
• Sampling Rate: 250MSPS
• Input Channel Type: Differential
• Data Interface: Serial, SPI
• Supply Voltage Range - Analog: 1.7V To 1.9V
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

AD6649
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Product Highlights ........................................................................... 3
Specifications..................................................................................... 4
Absolute Maximum Ratings.......................................................... 10
Pin Configuration and Function Descriptions........................... 11
Typical Performance Characteristics ........................................... 13
Equivalent Circuits ......................................................................... 16
Theory of Operation ...................................................................... 17
Digital Processing ........................................................................... 22
REVISION HISTORY
4/11—Revision 0: Initial Version
ADC DC Specifications................................................................. 4
ADC AC Specifications ................................................................. 5
Digital Specifications ..................................................................... 6
Switching Specifications ................................................................ 8
Timing Specifications .................................................................. 9
Thermal Characteristics ............................................................ 10
ESD Caution................................................................................ 10
ADC Architecture ...................................................................... 17
Analog Input Considerations.................................................... 17
Voltage Reference ....................................................................... 19
Clock Input Considerations ...................................................... 19
Power Dissipation and Standby Mode..................................... 20
Digital Outputs ........................................................................... 21
Numerically Controlled Oscillator (NCO) ............................. 22
NCO and FIR Filter Modes....................................................... 22
Rev. 0 | Page 2 of 40
Numerically Controlled Oscillator (NCO) ................................. 23
FIR Filters ........................................................................................ 24
ADC Overrange and Gain Control.............................................. 26
DC Correction ................................................................................ 27
Channel/Chip Synchronization.................................................... 28
Serial Port Interface (SPI).............................................................. 29
Memory Map .................................................................................. 31
Applications Information .............................................................. 39
Outline Dimensions ....................................................................... 40
f
Frequency Translation ............................................................... 23
NCO Synchronization ............................................................... 23
NCO Amplitude and Phase Dither.......................................... 23
FIR Synchronization .................................................................. 24
Filter Performance...................................................................... 24
Output NCO ............................................................................... 25
ADC Overrange (OR)................................................................ 26
Gain Switching............................................................................ 26
Configuration Using the SPI..................................................... 29
Hardware Interface..................................................................... 29
SPI Accessible Features.............................................................. 30
Reading the Memory Map Register Table............................... 31
Memory Map Register Table..................................................... 32
Memory Map Register Description ......................................... 36
Design Guidelines ...................................................................... 39
Ordering Guide .......................................................................... 40
S
/4 Fixed-Frequency NCO ....................................................... 22