Datasheet AD9695 (Analog Devices) - 9

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AD9695 Data Sheet AC SPECIFICATIONS—625 MSPS
AVDD1 = 0.95 V, AVDD1_SR = 0.95 V, AVDD2 = 1.8 V, AVDD3 = 2.5 V, DVDD = 0.95 V, DRVDD1 = 0.95 V, DRVDD2 = 1.8 V, SPIVDD = 1.8 V, clock divider = 2, default input full scale, 0.5 V internal reference, AIN = −1.0 dBFS, default SPI settings, and sample rate = 625 MSPS, DCS off, buffer current setting specified in Table 11, unless otherwise noted. Minimum and maximum specifications are guaranteed for the full operating junction temperature (TJ) range of −40°C to +105°C. Typical specifications represent performance at TJ = 35°C (TA = 25°C for the AD9695-625 speed grade).
Table 3. Analog Input Full Analog Input Full Scale = Analog Input Full Scale = Scale = 1.36 V p-p 1.7 V p-p 2.04 V p-p Parameter1 Min Typ Max Min Typ Max Min Typ Ma Unit x
ANALOG INPUT FULL SCALE 1.36 1.7 2.04 V p-p NOISE DENSITY2 −150.5 −152.3 −153.5 dBFS/Hz SIGNAL-TO-NOISE RATIO (SNR) fIN = 10.3 MHz 65.5 67.3 68.6 dBFS fIN = 172.3 MHz 65.4 65.5 67.2 68.5 dBFS fIN = 340 MHz 65.4 67.1 68.3 dBFS fIN = 750 MHz 65.0 66.6 67.7 dBFS fIN = 1000 MHz 64.8 66.3 67.3 dBFS SIGNAL-TO-NOISE-AND-DISTORTION RATIO (SINAD) fIN = 10.3 MHz 65.5 66.9 67.2 dBFS fIN = 172.3 MHz 65.4 66.3 67.0 68.0 dBFS fIN = 340 MHz 65.2 67.0 67.9 dBFS fIN = 750 MHz 64.9 65.4 67.0 dBFS fIN = 1000 MHz 64.6 65.0 67.0 dBFS EFFECTIVE NUMBER OF BITS (ENOB) fIN = 10.3 MHz 10.6 10.8 10.9 Bits fIN = 172.3 MHz 10.6 10.6 10.8 11.0 Bits fIN = 340 MHz 10.5 10.8 11.0 Bits fIN = 750 MHz 10.5 10.6 10.8 Bits fIN = 1000 MHz 10.4 10.5 10.8 Bits SPURIOUS FREE DYNAMIC RANGE (SFDR) fIN = 10.3 MHz 88 79 74 dBFS fIN = 172.3MHz 88 75 89 78 dBFS fIN = 340 MHz 79 80 77 dBFS fIN = 750 MHz 83 84 77 dBFS fIN = 1000 MHz 85 83 82 dBFS WORST OTHER, EXCLUDING 2ND OR 3RD HARMONIC fIN = 10.3 MHz −100 −101 −99 dBFS fIN = 172.3 MHz −101 −97 −90 −99 dBFS fIN = 340 MHz −100 −102 −98 dBFS fIN = 750 MHz −98 −98 −100 dBFS fIN = 1000 MHz −100 −98 −100 dBFS TWO-TONE INTERMODULATION DISTORTION (IMD), AIN1 AND AIN2 = −7.0 dBFS fIN1 = 170.8 MHz, fIN2 = 173.8 MHz −88 −88 −83 dBFS fIN1 = 343.5 MHz, fIN2 = 346.5 MHz −89 −89 −84 dBFS CROSSTALK3 >95 >95 >95 dB Overrange Condition4 >95 >95 >95 dB Rev. 0 | Page 8 of 135 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY GENERAL DESCRIPTION PRODUCT HIGHLIGHTS SPECIFICATIONS DC SPECIFICATIONS AC SPECIFICATIONS—1300 MSPS AC SPECIFICATIONS—625 MSPS DIGITAL SPECIFICATIONS SWITCHING SPECIFICATIONS TIMING SPECIFICATIONS Timing Diagrams ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS 1300 MSPS 625 MSPS EQUIVALENT CIRCUITS THEORY OF OPERATION ADC ARCHITECTURE ANALOG INPUT CONSIDERATIONS Differential Input Configurations Input Common Mode Analog Input Buffer Controls and SFDR Optimization Absolute Maximum Input Swing Dither VOLTAGE REFERENCE DC OFFSET CALIBRATION CLOCK INPUT CONSIDERATIONS Clock Duty Cycle Considerations Input Clock Divider Input Clock Divider ½ Period Delay Adjust Clock Fine Delay and Superfine Delay Adjust Clock Coupling Considerations Clock Jitter Considerations POWER-DOWN/STANDBY MODE TEMPERATURE DIODE ADC OVERRANGE AND FAST DETECT ADC OVERRANGE FAST THRESHOLD DETECTION (FD_A AND FD_B) ADC APPLICATION MODES AND JESD204B Tx CONVERTER MAPPING PROGRAMMABLE FINITE IMPULSE RESPONSE (FIR) FILTERS SUPPORTED MODES PROGRAMMING INSTRUCTIONS DIGITAL DOWNCONVERTER (DDC) DDC I/Q INPUT SELECTION DDC I/Q OUTPUT SELECTION DDC GENERAL DESCRIPTION DDC FREQUENCY TRANSLATION DDC Frequency Translation General Description Variable IF Mode 0 Hz IF (ZIF) Mode fS/4 Hz IF Mode Test Mode DDC NCO Description DDC NCO Programmable Modulus Mode DDC NCO Coherent Mode NCO FTW/POW/MAW/MAB Description NCO FTW/POW/MAW/MAB Programmable Modulus Mode NCO FTW/POW/MAW/MAB Coherent Mode NCO Channel Selection GPIO Level Control Mode GPIO Edge Control Mode Register Map Mode Setting Up the Multichannel NCO Feature NCO Synchronization NCO Multichip Synchronization NCO Multichip Synchronization at Startup NCO Multichip Synchronization During Normal Operation DDC Mixer Description DDC NCO + Mixer Loss and SFDR DDC DECIMATION FILTERS HB4 Filter Description HB3 Filter Description HB2 Filter Description HB1 Filter Description TB2 Filter Description TB1 Filter Description FB2 Filter Description DDC GAIN STAGE DDC COMPLEX TO REAL CONVERSION DDC MIXED DECIMATION SETTINGS DDC EXAMPLE CONFIGURATIONS SIGNAL MONITOR SPORT OVER JESD204B DIGITAL OUTPUTS INTRODUCTION TO THE JESD204B INTERFACE JESD204B OVERVIEW FUNCTIONAL OVERVIEW Transport Layer Data Link Layer Physical Layer JESD204B LINK ESTABLISHMENT Code Group Synchronization (CGS) Initial Lane Alignment Sequence (ILAS) User Data and Error Detection 8-Bit/10-Bit Encoder PHYSICAL LAYER (DRIVER) OUTPUTS Digital Outputs, Timing, and Controls Deemphasis Phase-Locked Loop (PLL) SETTING UP THEAD9695 DIGITAL INTERFACE Example Setup 1—Full Bandwidth Mode Example Setup 2—ADC with DDC Option (Two ADCs Plus Two DDCs) DETERMINISTIC LATENCY SUBCLASS 0 OPERATION SUBCLASS 1 OPERATION Deterministic Latency Requirements Setting Deterministic Latency registers MULTICHIP SYNCHRONIZATION NORMAL MODE TIMESTAMP MODE SYSREF± INPUT SYREF± Control Features SYSREF± SETUP/HOLD WINDOW MONITOR LATENCY END TO END TOTAL LATENCY EXAMPLE LATENCY CALCULATIONS LMFC REFERENCED LATENCY TEST MODES ADC TEST MODES JESD204B BLOCK TEST MODES Transport Layer Sample Test Mode Interface Test Modes Data Link Layer Test Modes SERIAL PORT INTERFACE (SPI) CONFIGURATION USING THE SPI HARDWARE INTERFACE SPI ACCESSIBLE FEATURES MEMORY MAP READING THE MEMORY MAP REGISTER TABLE Open and Reserved Locations Default Values Logic Levels Channel Specific Registers SPI Soft Reset MEMORY MAP REGISTERS APPLICATIONS INFORMATION POWER SUPPLY RECOMMENDATIONS LAYOUT GUIDELINES AVDD1_SR (PIN 57) AND AGND_SR (PIN 56 AND PIN 60) OUTLINE DIMENSIONS ORDERING GUIDE