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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)
  • Primary Clock Function: Clean Up,Generation
  • On-Chip Multiplier: PLL Core
  • +Supply Voltage (V): 3.3V
  • Max Input Frequency: 655MHz
  • # of Outputs: 1
  • Max f-out (MHz): 655MHz
  • I/O Interface: Serial
  • Package: 48-LFCSP
  • Output Logic: CML,PECL-Compliant
  • Product Description: Clock Generator Synchronizer

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.

Similar Products

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Part# Product Description +Supply Voltage (V) # of Inputs # of Outputs On-Chip VCO or DCO Max f-out (MHz) Output Logic Random Jitter (ps-RMS) Package Price* (1000-4999)
AD9510 Multi-Output Clock Generator 3.3 1 8 No 1200 CMOS, LVDS, LVPECL 0.225 64-LFCSP $12.09
AD9511 Multi-Output Clock Generator 3.3 1 5 No 1200 CMOS, LVDS, LVPECL 0.225 48-LFCSP $10.07
AD9512 Clock Divider 3.3 1 5 No 1200 CMOS, LVDS, LVPECL 0.225 48-LFCSP $9.06
AD9513 Clock Divider 3.3 1 3 No 800 CMOS, LVDS 0.3 32-LFCSP $6.02
AD9514 Clock Divider 3.3 1 3 No 1600 CMOS, LVDS, LVPECL 0.225 32-LFCSP $6.02
AD9515 Clock Divider 3.3 1 2 No 1600 CMOS, LVDS, LVPECL 0.225 32-LFCSP $4.81
AD9516-0 Multi-Output Clock Generator 3.3 2 14 Yes 2950 CMOS, LVDS, LVPECL 0.4 64-LFCSP $12.65
AD9516-1 Multi-Output Clock Generator 3.3 2 14 Yes 2650 CMOS, LVDS, LVPECL 0.4 64-LFCSP $12.65
AD9516-2 Multi-Output Clock Generator 3.3 2 14 Yes 2335 CMOS, LVDS, LVPECL 0.4 64-LFCSP $12.65
AD9516-3 Multi-Output Clock Generator 3.3 2 14 Yes 2250 CMOS, LVDS, LVPECL 0.4 64-LFCSP $12.65
AD9516-4 Multi-Output Clock Generator 3.3 2 14 Yes 1800 CMOS, LVDS, LVPECL 0.4 64-LFCSP $12.65
AD9517-0 Multi-Output Clock Generator 3.3 2 12 Yes 2950 CMOS, LVDS, LVPECL 0.4 48-LFCSP $11.54
AD9517-1 Multi-Output Clock Generator 3.3 2 12 Yes 2650 CMOS, LVDS, LVPECL 0.4 48-LFCSP $11.54
AD9517-2 Multi-Output Clock Generator 3.3 2 12 Yes 2335 CMOS, LVDS, LVPECL 0.4 48-LFCSP $11.54
AD9517-3 Multi-Output Clock Generator 3.3 2 12 Yes 2250 CMOS, LVDS, LVPECL 0.4 48-LFCSP $11.54
AD9517-4 Multi-Output Clock Generator 3.3 2 12 Yes 1800 CMOS, LVDS, LVPECL 0.4 48-LFCSP $11.54
AD9518-0 Multi-Output Clock Generator 3.3 2 6 Yes 2950 LVPECL 0.4 48-LFCSP $9.97
AD9518-1 Multi-Output Clock Generator 3.3 2 6 Yes 2650 LVPECL 0.4 48-LFCSP $9.97
AD9518-2 Multi-Output Clock Generator 3.3 2 6 Yes 2335 LVPECL 0.4 48-LFCSP $9.97
AD9518-3 Multi-Output Clock Generator 3.3 2 6 Yes 2250 LVPECL 0.4 48-LFCSP $9.97
AD9518-4 Multi-Output Clock Generator 3.3 2 6 Yes 1800 LVPECL 0.4 48-LFCSP $9.97
AD9520-0 Multi-Output Clock Generator 3.3 - - Yes 1600 CMOS, LVDS, LVPECL 0.225 - $12.65
AD9520-1 Multi-Output Clock Generator 3.3 1 12 Yes 2650 CMOS, LVPECL 0.225 64-LFCSP $12.65
AD9520-2 Multi-Output Clock Generator 3.3 1 12 Yes 2335 CMOS, LVPECL 0.225 64-LFCSP $12.65
AD9520-3 Multi-Clock Output Generator 3.3 1 12 Yes 2250 CMOS, LVPECL 0.225 64-LFCSP $12.65
AD9520-5 Multi-Output Clock Generator 3.3 1 12 No 2400 CMOS, LVDS, LVPECL 0.225 64-LFCSP $11.50
AD9522-0 Multi-Output Clock Generator 3.3 1 12 Yes 2950 CMOS, LVDS 0.242 64-LFCSP $12.65
AD9522-1 - 3.3 1 12 Yes 2650 CMOS, LVDS 0.242 64-LFCSP $12.65
AD9522-2 Multi-Output Clock Generator 3.3 1 12 Yes 2335 CMOS, LVPECL 0.242 64-LFCSP $12.65
AD9522-3 Multi-Output Clock Generator 3.3 1 12 Yes 2250 CMOS, LVPECL 0.245 64-LFCSP $12.65
AD9522-4 Multi-Output Clock Generator 3.3 1 12 Yes 1600 CMOS, LVDS 0.242 64-LFCSP $12.65
AD9522-5 Multi-Output Clcok Generator 3.3 1 12 No 2400 CMOS, LVDS, LVPECL 0.242 64-LFCSP $10.11
AD9540 Clock Generator Synchronizer 3.3 1 1 No 655 CML, PECL-Compliant 0.7 48-LFCSP $10.07
AD9549 Clock Generator Synchronizer 3.3 2 2 Yes 750 CMOS, HSTL 0.6 64-LFCSP $12.56
AD9551 Multiservice Clock Generator 3.3 2 2 Yes 900 CMOS, LVDS, LVPECL 0.1 40-LFCSP $14.75
ADCLK846 - 1.8 1 6 No 1200 CMOS, LVDS 0.1 24-LFCSP $5.19
ADCLK854 - 1.8 2 12 No 1200 CMOS, LVPECL 0.1 48-LFCSP $5.95
ADCLK905 Clock Buffer 3.3 1 1 No 6000 ECL, LVPECL, PECL 0.06 16-LFCSP $5.67
ADCLK907 Clock Buffer 3.3 2 2 No 6000 ECL, LVPECL, PECL 0.06 16-LFCSP $6.83
ADCLK925 Clock Buffer 3.3 1 2 No 6000 ECL, LVPECL, PECL 0.06 16-LFCSP $6.02
ADCLK946 Six LVPECL Outputs, SiGe Clock Fanout Buffer 3.3 1 6 No 4800 LVPECL 0.075 24-LFCSP $6.25
ADCLK954 - 3.3 2 12 - 4800 LVPECL 0.075 40-LFCSP $6.95
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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.