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AD9540:  Low Jitter, DDS-based Clock Generator and Synthesizer

The AD9540 supports a variety of functions including signal synthesis and low jitter clock generation useful in a wide variety of applications. The device features high performance PLL circuitry including a flexible 200 MHz Phase Frequency Detector and a digitally controlled charge pump current. The device also provides a low jitter, 655 MHz CML mode (PECL compatible) output driver with ...More

AD9540:  Low Jitter, DDS-based Clock Generator and Synthesizer

Product Description

The AD9540 supports a variety of functions including signal synthesis and low jitter clock generation useful in a wide variety of applications. The device features high performance PLL circuitry including a flexible 200 MHz Phase Frequency Detector and a digitally controlled charge pump current. The device also provides a low jitter, 655 MHz CML mode (PECL compatible) output driver with programmable slew rates. External VCO rates up to 2.7 GHz are supported. An onboard 400 MSPS DDS provides extremely fine tuning resolution and phase programmability. Information is loaded into the AD9540 via a serial I/O port which has a device write speed of 25Mbit/sec. The AD9540 frequency divider block can also be programmed to support a spread spectrum clocking mode.

The AD9540 is specified to operate over the extended automotive range of -40°C to +85°C.

Applications

  • Clocking high performance data converters
  • Basestation clocking applications
  • Network (SONET/SDH) clocking
  • Gigabit Ethernet (GbE) clocking
  • Instrumentation clocking circuits

RESOURCES & TOOLS

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  • Intrinsic Jitter performance < 500 fs
  • Synthesizes signals to 2.7 GHz
  • Generates clock signals to 655 MHz
  • 25 Mbit/sec write speed Serial I/O Control
  • 200 MHz Phase Frequency Detector Inputs
  • 400 MSPS DDS onboard
    Programmable edge delay w/ 93 fs resolution
    Frequency resolution <2.33 µHz
  • 655 MHz Programmable Input Dividers for the Phase Frequency Detector (÷M,N) {M,N =1..16} (bypassable)
  • 8 Programmable internal clock rates
  • 1.8 V Supply for device operation
    3.3 V Supply for I/O, CML Driver & Charge Pump Output
  • Software controlled power-down
  • 48-lead LFCSP package
  • Programmable charge pump current (up to 4 mA)

Functional Block Diagram for AD9540

Of Note ...

Two evaluation boards are available for the AD9540:
AD9540-VCO/PCB: Evaluation board with 1.6 GHz VCO and correlating loop filter
AD9540/PCB: Evaluation Board with no VCO and unpopulated loop filter

An Overview of the Clock Distribution/Generation Family is available.

类似产品

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Part# Master fclk Resolution (Bits) Tuning Word Width (bits) Nominal Supply (V) I Supply total (max) FS Iout (mA nom) Compliance Range (V) REFCLK Multiplier On-Board Comparator I/O Interface Price* (1000-4999) Product Description
AD9913 250MHz 10 32 Single(+1.8) 63.5mA 4.6 0.8 Yes No Parallel, Serial $9.77 Low power 250 MSPS DDS with 10 bit DAC output
AD9833 25MHz 10 28 Single(+2.3 to +5.5), Single(+2.5), Single(+2.7), Single(+3), Single(+3.3), Single(+3.6), Single(+5) 5.5mA 3 0.65 No No Serial $4.00 25 MHz, Serial Input, Programmable DDS Waveform Generator
AD9831 25MHz 10 32 Single(+3.3), Single(+3.6), Single(+5) 15mA 4 1.5 No No Parallel $6.33 CMOS, 25 MHz Parallel Input DDS with On-Chip 10-Bit DAC & Sine Lookup Table
AD9832 25MHz 10 32 Single(+3.3), Single(+3.6), Single(+5) 15mA 4 1.35 No No Serial $5.06 CMOS, 25 MHz Serial Input DDS with On-Chip 10-Bit DAC & Sine Lookup Table
AD5930 50MHz 10 24 Single(+2.3 to +5.5) 8mA 3.1 0.8 No No Serial $6.38 Programmable Frequency Sweep and Output Burst Waveform Generator
AD5932 50MHz 10 24 Single(+2.3 to +5.5) 8mA n/a n/a Yes No Serial $4.15 Programmable Single-Scan Waveform Generator
AD9830 50MHz 10 32 Single(+5) 60mA 20 1 No No Parallel $11.08 CMOS, 50 MHz Parallel Load DDS with On-Chip 10-Bit DAC & Sine Lookup Table
AD9835 50MHz 10 32 Single(+5) 40mA 4 1.35 No No Serial $5.82 CMOS, Serial Input, 50 MHz DDS with On-Chip 10-Bit DAC
AD9834 75MHz 10 28 Single(+2.3 to +5.5), Single(+2.5), Single(+2.7), Single(+3), Single(+3.3), Single(+3.6), Single(+5) 8.7mA 3 0.8 No Yes Serial $5.01 Low Power, 50 MHz Serial Input DDS With On-Board Comparator
AD9850 125MHz 10 32 Single(+3.3), Single(+5) 96mA 20 1.5 No Yes Parallel, Serial $12.14 CMOS, 125 MHz Serial/Byte-Parallel Input, Complete DDS
AD9851 180MHz 10 32 Single(+3), Single(+3.3), Single(+3.6), Single(+5) 130mA 20 1.5 Yes Yes Parallel, Serial $13.56 180 MHz Complete DDS
AD9852 300MHz 12 48 Single(+3.3) 922mA 20 1 Yes Yes Parallel, Serial $15.58 CMOS, 300 MSPS Complete DDS w/ Clock Multiplier
AD9854 300MHz 12 48 Single(+3.3) 1210mA 10 1 Yes Yes Parallel, Serial $17.10 CMOS 300 MHz, Quadrature, Complete-DDS
AD9859 400MHz 10 32 Multi(+1.8, +3.3) n/a 20 2.05 Yes No Serial $9.87 400 MSPS, 10-Bit, 1.8 V CMOS DDS
AD9951 400MHz 14 32 Multi(+1.8, +3.3), Single(+1.8) n/a 10 2.05 Yes No Serial $13.90 400 MSPS 14-Bit, 1.8 V CMOS DDS
AD9952 400MHz 14 32 Multi(+1.8, +3.3), Single(+1.8) n/a 10 2.05 Yes Yes Serial $15.68 400 MSPS, 14-Bit, 1.8 V, CMOS Direct Digital Synthesizer w/High Speed Comparator
AD9953 400MHz 14 32 Multi(+1.8, +3.3), Single(+1.8) n/a 10 2.05 Yes No Serial $14.92 400 MSPS, 14-Bit DAC, 1.8 V CMOS Direct Digital Synthesizer w/ 1024x32 RAM
AD9954 400MHz 14 32 Multi(+1.8, +3.3), Single(+1.8) n/a 10 2.05 Yes Yes Serial $17.45 400 MSPS, 14-Bit, 1.8V CMOS DDS w/ 1024x32 RAM, Linear Sweep Block, & Hi Speed Comparator
AD9956 400MHz 14 48 Multi(+1.8, +3.3) n/a 10 2.3 No No Serial $17.45 400 MSPS, 14-Bit DAC, 48-Bit Freq Tuning Word, 1.8 V CMOS DDS Based AgileRF™ Synthesizer
AD9958 500MHz 10 32 Multi(+1.8, +3.3) 105mA 10 2.3 Yes - Serial $20.48 2-Channel 500 MSPS DDS with 10-Bit DACs
AD9911 500MHz 10 32 Single(+1.8) 73mA 10 1.8 Yes - Serial $15.69 500 MSPS Direct Digital Synthesizer w/10-Bit DAC
AD9959 500MHz 10 32 Multi(+1.8, +3.3) 180mA 10 2.3 Yes - Serial $37.59 -
AD9858 1000MHz 10 32 Multi(+3.3, +5) n/a 40 3.8 No No Parallel, Serial $45.66 1 GSPS Direct Digital Synthesizer
AD9910 1000MHz 14 32 Single(+1.8), Single(+3.3) n/a 20 0.5 Yes No Parallel, Serial $35.33 1 GSPS, 14-Bit, 3.3 V CMOS Direct Digital Synthesizer
AD9912 1000MHz 14 48 Multi(+1.8, +3.3) 394mA - 0.5 Yes Yes Serial $37.70 1 GSPS 14-Bit, DDS with Spur Reduction Channels
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* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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