AD9851/FSPCB Analog Devices Inc, AD9851/FSPCB Datasheet
AD9851/FSPCB
Specifications of AD9851/FSPCB
Related parts for AD9851/FSPCB
AD9851/FSPCB Summary of contents
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FEATURES 180 MHz Clock Rate with Selectable 6 Reference Clock Multiplier On-Chip High Performance 10-Bit DAC and High Speed Comparator with Hysteresis SFDR > MHz A OUT 32-Bit Frequency Tuning Word Simplified Control Interface: Parallel or Serial ...
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AD9851–SPECIFICATIONS P arameter CLOCK INPUT CHARACTERISTICS Frequency Range (6 REFCLK Multiplier Disabled) 5.0 V Supply 3.3 V Supply 2.7 V Supply Frequency Range (6 REFCLK Multiplier Enabled) 5.0 V Supply 3.3 V Supply 2.7 V Supply Duty Cycle ...
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Parameter 4 TIMING CHARACTERISTICS (W_CLK Min Pulse Width High/Low) (W_CLK Min Pulse Width High/Low (Data to W_CLK Setup and Hold Times (FQ_UD Min Pulse Width ...
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... AD9851BRSRL –40°C to +85°C AD9851/CGPCB AD9851/FSPCB CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD9851 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...
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Pin No. Mnemonic Function 4–1, D0–D7 8-Bit Data Input. The data port for loading the 32-bit frequency and 8-bit phase/control words MSB; 28– LSB. D7, Pin 25, also serves as the input pin for 40-bit serial ...
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AD9851–Typical Performance Characteristics 0 RBW = 5kHz –10 VBW = 5kHz SWT = 7.2s –20 RF ATT = 20dB REF LVL = –7dBm –30 –40 –50 –60 –70 –80 –90 –100 0Hz 7.2MHz/ START TPC 1. Wideband ( ...
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Tek Run 4.00GS/s Sample [ ] T : 208ps @ : 1.940ns 1 M 12.5ns Ch 1 Ch1 200mV D 200ps Runs After TPC 7. Typical CMOS comparator p-p output jitter with the AD9851 configured as a clock generator, ...
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AD9851 –120 AD9851 RESIDUAL PHASE NOISE –125 –130 –135 –140 –145 –150 –155 100 1k FREQUENCY OFFSET – Hz TPC 11. Output Residual Phase Noise (5.2 MHz A REFCLK Multiplier Disabled, System Clock = 180 MHz, Ref- erence Clock = ...
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MAXIMUM DAC I OUT TPC 17. Effect of DAC maximum output current on wideband ( MHz) SFDR at three representa- tive DAC output frequencies: 1.1 MHz, ...
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... SINE WAVE USING PASSIVE AVERAGING CIRCUIT PHASE LOOP VCO COMPARATOR FILTER REF CLK IN AD9851 DDS PROGRAMMABLE DIVIDE-BY-N FUNCTION 32 (WHERE TUNING WORD) TUNING WORD AD9851/FSPCB 8-BIT EVALUATION ADSP-2181 DATA BOARD BUS BUS DSP INPUT/ AD9851 OUTPUT DSP DECODE DDS LOGIC REF AD1847 ...
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W CLK #1 W CLK # MICROPROCESSOR OR 8-BIT DATA BUS MICROCONTROLLER RESET RESET W CLK #2 W CLK #2 Figure 7. Application Showing Synchronization of Two AD9851 DDSs to Form a Quadrature Oscillator After a ...
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AD9851 REFERENCE CLOCK N PHASE ACCUMULATOR TUNING WORD SPECIFIES OUTPUT FREQUENCY AS A FRACTION OF REF CLOCK FREQUENCY Figure 11. Basic DDS Block Diagram and Signal Flow of AD9851 F OUT 0Hz 20MHz (DC) Figure 12. Output Spectrum of a ...
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In the example shown in Figure 12, the system clock is 100 MHz and the output frequency is set to 20 MHz. As can be seen, the aliased images are very prominent and of a relatively high energy level as ...
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AD9851 the factory test mode. Exit from serial mode to parallel mode is only possible using the RESET command. The function assignments of the data and control words are shown in Tables I and III; the detailed timing sequence for ...
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SYSCLK RESET A OUT Note: The timing diagram above shows the minimal amount of reset time needed before writing to the device. However, the master reset does not have to be synchronous to the SYSCLK if the minimal time is ...
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AD9851 DATA CLK CLK CYCLES 40 CLK CYCLES Figure 19. Serial Load Frequency/Phase Update Sequence Table III. 40-Bit Serial Load Word Functional Assignment W0 Freq–b0 (LSB) W1 Freq–b1 W2 Freq–b2 ...
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... Printer port, 3.5-in floppy drive, mouse, and Centronics com- patible printer cable voltage supply Crystal clock oscillator or high frequency signal generator (sine wave output) with dc offset capability AD9851 Evaluation Board Software disk and AD9851/FSPCB or AD9851/CGPCB Evaluation Board Setup Copy the contents of the AD9851 disk onto the host PCs hard drive ...
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... Hz, 0° phase, parallel programming mode. The output from the DAC IOUT should voltage equal to the full-scale output of the AD9851 (1 V for the AD9851/CGPCB and 0.5 V for the AD9851/FSPCB), while the DAC IOUTB should for both evaluation boards. RESET should always be the first command to the AD9851 following power-up. ...
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... STROBE 14 FFQUD 74HCT574 RRESET WWCLK FFQUD RRESET WWCLK 1D 32 CHECK STROBE 36 STROBE + 10F R3 2.2k STROBE WWCLK REV AD9851/FSPCB 12 FREQUENCY 8Q D0 SYNTHESIZER EVALUATION BOARD AD9851 PGND GND PVCC 6 W CLK WCLK FQUD 8 CLKIN REFCLOCK 9 AGND GND AVDD 11 3.9k 10mA R 12 ...
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... AD9851 23a. FSPCBTop Layer 23b. FSPCB Power Plane Figure 23. FSPCB Evaluation Board 4-Layer PCB Layout Patterns AD9851/FSPCB Evaluation Board Parts List—GSO 0516(A) Miscellaneous Hardware 1 Amp 552742-1, 36-Pin Plastic, Right Angle, PC Mount, Female 1 Banana Jack–Color Not Important 1 Yellow Banana Jack 1 Black Banana Jack 2 BNC Coax ...
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BANANA 5V JACKS J4 GND AD9851 PGND GND 5 +V PVCC 6 W CLK WCLK FQUD 8 REFCLOCK CLKIN 9 AGND GND ...
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AD9851 25a. CGPCBTop Layer 25b. CGPCB Ground Plane Figure 25. FSPCB Evaluation Board 4-Layer PCB Layout Patterns 25c. CGPCB Power Plane 25d. CGPCB Bottom Layer –22– REV. D ...
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CGPCB Evaluation Board Parts List—GSO 0515(B) Miscellaneous Hardware 1 Amp 552742-1, 36-Pin Plastic, Right Angle, PC Mount, Female 1 Banana Jack—Color Not Important 1 Yellow Banana Jack 1 Black Banana Jack 5 BNC Coax. Connector, PC Mount 1 AD9851/CGPCB Evaluation ...
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AD9851 28 1 2.00 MAX 0.65 0.05 BSC MIN Revision History Location 1/04—Data Sheet changed from REV REV. D Renumbered figures and TPCs . . . . . . . . . . . . . . . ...