AD9518-1
6-Output Clock Generator with Integrated 2.5 GHz VCO
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Overview
Features and Benefits
- Low phase noise, phase-locked loop (PLL)
For more information please refer to the data sheet - 3 pairs of 1.6 GHz LVPECL outputs
Each output pair shares a 1-to-32 divider with coarse phase delay
Additive output jitter: 225 fs rms
Channel-to-channel skew paired outputs of <10 ps
- Automatic synchronization of all outputs on power-up
- Manual output synchronization available
- Available in a 48-lead LFCSP
Product Details
The AD9518-11 The AD9518-11 provides a multi-output clock distribution function with subpicosecond jitter performance, along with an on chip PLL and VCO. The on-chip VCO tunes from 2.30 GHz to 2.65 GHz. Optionally, an external VCO/VCXO of up to 2.4 GHz can be used.
The AD9518-1 emphasizes low jitter and phase noise to maximize data converter performance, and it can benefit other applications with demanding phase noise and jitter requirements.
The AD9518-1 features six LVPECL outputs (in three pairs). The LVPECL outputs operate to 1.6 GHz.
For applications that require additional outputs, a crystal reference input, zero-delay, or EEPROM for automatic configuration at startup, the AD9520 and AD9522 are available.
In addition, the AD9516 and AD9517 are similar to the AD9518 but have a different combination of outputs.
Each pair of outputs has dividers that allow both the divide ratio and coarse delay (or phase) to be set. The range of division for the LVPECL outputs is 1 to 32.
The AD9518-1 is available in a 48-lead LFCSP and can be operated from a single 3.3 V supply. An external VCO, which requires an extended voltage range, can be accommodated by connecting the charge pump supply (VCP) to 5 V. A separate LVPECL power supply can be from 2.5 V to 3.3 V (nominal).
The AD9518-1 is specified for operation over the industrial range of −40°C to +85°C.
Applications- Low jitter, low phase noise clock distribution
- 10/40/100 Gb/sec networking line cards, including SONET, Synchronous Ethernet, OTU2/3/4
- Forward error correction (G.710)
- Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs
- High performance wireless transceivers
- ATE and high performance instrumentation
1AD9518 is used throughout the data sheet to refer to all the members of the AD9518 family. However, when AD9518-1 is used, it refers to that specific member of the AD9518 family.
Product Categories
Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
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AN-835: Understanding High Speed ADC Testing and Evaluation (Rev. B)5/12/2015PDF985 kB
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AN-501: Aperture Uncertainty and ADC System Performance (Rev. A)2/14/2015PDF227 K
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AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter (Rev. 0)2/14/2015PDF291K
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AN-769: Generating Multiple Clock Outputs from the AD9540 (Rev. 0)2/14/2015PDF0
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AN-939: Super-Nyquist Operation of the AD9912 Yields a High RF Output Signal (Rev. 0)2/14/2015PDF221 kB
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AN-837: DDS-Based Clock Jitter Performance vs. DAC Reconstruction Filter Performance (Rev. 0)2/14/2015PDF313 kB
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AN-823: Direct Digital Synthesizers in Clocking Applications Time (Rev. 0)2/14/2015PDF115 kB
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AN-927: Determining if a Spur is Related to the DDS/DAC or to Some Other Source (For Example, Switching Supplies) (Rev. 0)2/14/2015PDF170 kB
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AN-0974: Multicarrier TD-SCMA Feasibility3/2/2010PDF634 kB
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AN-873: Lock Detect on the ADF4xxx Family of PLL Synthesizers (Rev. 0)12/6/2006PDF207 kB
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AN-741: Little Known Characteristics of Phase Noise (Rev. 0)11/29/2004PDF1679 kB
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UG-075: AD9516-x, AD9517-x, and AD9518-x Evaluation Board User Guide1/30/2010PDF1089 kB
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FAQs7/26/2017
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RF, Microwave, and Millimeter Wave Product Selection Guide7/13/2018PDF9M
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Low-power direct digital synthesizer cores enable high level of integration2/20/2008
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Improved DDS Devices Enable Advanced Comm Systems9/1/2006
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ADI Buys Korean Mobile TV Chip Maker6/7/2006
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Design A Clock-Distribution Strategy With Confidence4/27/2006
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Understand the Effects of Clock Jitter and Phase Noise on Sampled Systems12/7/2004
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Speedy A/Ds Demand Stable Clocks3/22/2004
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Resolution vs. ENOB – Still Hazy After All These Years2/1/2013
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Considerations on High-Speed Converter PCB Design, Part 4: Plane Coupling2/1/2012
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Crosstalkin’ Converters11/1/2011
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Balancing Phase in High-Speed Converters8/1/2011
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Considerations on High-Speed Converter PCB Design, Part 3: The E-Pad Low Down5/1/2011
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Considerations on High-Speed Converter PCB Design, Part 2: Power and Ground Planes.2/1/2011
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Considerations on High-Speed Converter PCB Design, Part 1: Power and Ground Planes.11/1/2010
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Watch for Those Multiple Clocking Edges!8/1/2010
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Taming A/D Converter Power Supplies3/1/2010
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What’s the (Converter) Frequency Kenneth?9/1/2009
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Keeping Common Modes Common4/1/2009
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Are Your Filters Filtering?2/1/2009
Tools & Simulations
Design Tools
ADIsimCLK Design and Evaluation Software
ADIsimCLK is the design tool developed specifically for Analog Devices' range of ultra-low jitter clock distribution and clock generation products. Whether your application is in wireless infrastructure, instrumentation, networking, broadband, ATE or other areas demanding predictable clock performance, ADIsimCLK will enable you to rapidly develop, evaluate and optimize your design.
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD9518-1ABCPZ | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP) | |
| AD9518-1ABCPZ-RL7 | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP) | |
| AD9518-1BCPZ | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm w/ EP) | |
| AD9518-1BCPZ-REEL7 | Material Declaration | Reliability Data | 48-Lead LFCSP (7mm x 7mm w/ EP) | |
| Wafer Fabrication Data |
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Support & Discussions
AD9518-1 Discussions
Sample & Buy
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