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Multifrequency Clock Synthesizer optimizes signal quality.
April 21, 2009 -
Using 4 TI CDC7005 clock synchronizers, each controlling one quad-frequency VCXO, Model 7190 lends designers working with A/Ds and D/As precise source of clock signals in PMC format. All 8 output clocks are phase-locked to external frequency reference, and unit is programmed to select any one of its 4 VCXO frequencies. Resulting frequencies can be divided by 1, 2, 4, 8, or 16. Up to 5 different frequencies or one identical clock can be delivered to 8 front-panel SMC output connectors.
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Pentek Announces a Multifrequency Clock Synthesizer Built for Signal Quality
o Up to 8 synthesized clock signal outputs for high-precision data acquisition
o Simultaneous synthesis of up to 5 different frequencies
o Clocks phase-locked to input frequency reference
o Low-phase noise and jitter preserves signal accuracy
o 1/10 the cost and 1/4 the size of alternative clock sources
UPPER SADDLE RIVER, NJ, April 6, 2009-By introducing the Model 7190 Multifrequency Clock Synthesizer, Pentek now offers designers working with A/Ds and D/As an extraordinarily high performance, highly precise source of clock signals in an unusually small PMC format.
When synchronous sampling is not required, and when sampling rates and bit counts are relatively low, A/D and D/A systems are often clocked by on-board oscillators. However, for larger, multichannel radar and beamforming systems, synchronous sampling is mandatory. In addition, as new A/Ds achieve 16-bit resolution and exceed sampling rates of 200 MHz, a far more functional, flexible and precise clock is required. The introduction of Pentek's 7190 Multifrequency Clock Synthesizer fills this void as a highly precise and pure clock source, at a price approximately an order of magnitude less than alternative solutions.
"The 7190 can play a crucial role in systems where superb performance is a must," noted Rodger Hosking, vice president of Pentek. "In many cases, the 7190 module frees the customer from having to devise a custom clock generation scheme. What's more, most other alternate clock source solutions are bulky and are not well suited for deployment. As a PMC module, the 7190 delivers a compact, clean and flexible clock solution for fielded systems, with performance rivaling the best oscillators in the lab," Hosking concluded.
"The clock source is one of the most important components of any digital signal processing, data acquisition or recording system. In these applications, accuracy and purity of the sample clock are critical and the connection to a very high precision source is essential," says Mark Wilson, general manager of clocks and timing products at Texas Instruments. "We are pleased that Pentek chose TI's CDC7005 high-performance, low phase noise clock synchronizer to dramatically reduce the amount of jitter in the Model 7190 output clocks," Wilson added.
Extreme Flexibility
A key feature of the 7190 is that all eight output clocks are phase locked to an external frequency reference, typically 5 or 10 MHz. It uses four TI CDC7005 Clock synchronizers, each controlling a quad frequency voltage controlled crystal oscillator (VCXO).
Each CDC7005 is programmed to select any one of its four VCXO frequencies, providing a total of sixteen different VCXO frequencies for the board. Each of these frequencies can then be divided by 1, 2, 4, 8 or 16, resulting in 80 different clock frequency choices.
Up to five different frequencies from this set can be delivered to the eight front-panel SMC output connectors, or a single identical clock can be sent to all eight outputs. Numerous other combinations are also possible, depending upon the specific configuration of the A/D and D/A boards.
The 7190 is also equipped with a nonvolatile memory. Once it is configured, the settings will return to the saved configuration each time it is powered up. Once a configuration is saved, the 7190 does not require PCI access, which is quite convenient for deployed applications that might not include a host computer.
Full Compatibility with Industry Standard Form Factors
Because PMC is a standard form factor for embedded systems, the 7190 is easily adaptable to many different architectures. Utilizing PMC carrier boards, the 7190 can be transformed into a VME or CompactPCI (3U or 6U) board. In addition, inserting the 7190 into Pentek's PCI or PCIe (PCIexpress) carriers enable the 7190 to be used in a desktop computer.
Software
The 7190 is supported with a ReadyFlow Board Support Package running under Linux, Windows or VxWorks operating systems.
Price and Availability
The price of the Model 7190 Multifrequency Clock Synthesizer is $2,495 USD. Delivery is 8 to 10 weeks ARO.
About Pentek
Pentek, Inc. manufactures and markets innovative embedded systems and boards to design engineers and is a certified ISO 9001:2000 quality management company. Pentek offers powerful VME, VXS, PMC, XMC, cPCI, PCI and PCIe boards and systems for data acquisition, software radio and digital signal processing featuring Texas Instruments DSPs, Freescale PowerPCs and Xilinx FPGAs. Pentek's I/O includes A/Ds, D/As, FPGAs, digital upconverters and downconverters, installed IP cores and more. The company offers strong DSP software support and equips all products with high-performance I/O, including gigabit serial interfaces.
Pentek and ReadyFlow are registered trademarks of Pentek, Inc. Other brand or product names are registered trademarks or trademarks of their respective holders.
For the release, photograph and datasheet, please visit: http://www.pentek.com/whatsnew/ViewRe...
North American Sales Contact: Mario Schiavone, Pentek, Inc., One Park Way, Upper Saddle River, NJ 07458-2311; Telephone 201-818-5900, ext. 770; Fax 201-818-5904; Email news@pentek.com. Website www.pentek.com.
International Sales Contacts: Elexo in France 0141 22 1023, Sela Electronic Systems in Israel at 36479969, MISH International in Japan at 425387650, Beijing BetaOne Sysjob Ltd. in China at 1082784106 and Acetronix Co. Ltd. in Korea at 24202343, ext. 106, Aries Ingenieria Y Sistemas, S.A. in Spain at 91 570 2737. Please visit http://www.pentek.com/contact/replist.pdf for a full list of international Pentek representatives and distributors.
Contacts:
Sales:
Mario Schiavone
USA
Phone: 201-818-5900 ext 770
FAX: 201-818-5904
 E-mail this person
Company Information:
Name: Pentek Inc.
Address: 1 Park Way
City: Upper Saddle River
State: NJ
ZIP: 07458
Country: USA
Phone: 201-818-5900
FAX: 201-818-5904
http://www.pentek.com
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