Dual-rate VCXO replaces two VCXOs for Sonet/SDH
A NDK product story
Edited by the Electronicstalk editorial team Jan 23, 2004
The 7311Q is a new series of dual rate-voltage controlled crystal oscillators (DR-VCXOs) for communication systems requiring a dual rate pure frequency signal.
The 7311Q is a new series of dual rate-voltage controlled crystal oscillators (DR-VCXOs) for communication systems requiring a dual rate pure frequency signal.
These DR-VCXOs can be switched from their operating frequencies to the FEC (forward error correction) rate, enabling communication equipment to quickly correct for jitter and re-establish a consistent frequency.
Previously this was done with two separate VCXOs.
The 7311Q series deliver a 622.08MHz/FEC rate (selectable) with a LVPECL complementary output signal.
Standard frequencies include 622.08/644.5313, 622.08/666.5143 and 622.08/669.3266MHz; other frequencies are available on request.
The 7311Q produces a low-jitter pure frequency source, ideal for clock data recovery function in communication systems.
Devices operate on a supply voltage of +3.3V DC, typically consuming only 130mA.
The 7311Q comes in a compact (17.0 x 9.6mm), low-profile (3.9mm height) SMD 6-pin L-lead package.
Devices operate over a wide temperature range of -10 to +70C with a maximum overall stability +/-50ppm.
"The 7311Q DR-VCXO is just one of a complete line of frequency control products for optical communication applications that NDK offers.
This one product replaces two VCXOs, freeing up valuable board space and simplifying the circuit design", said Mike Walczak, President, NDK America.
Cost for the 7311Q in 100-piece quantities is about $65.00 each.
Engineering samples of popular frequencies are available.
Not what you're looking for? Search the site.
Google Ads
Contact NDK
Related Stories
Articles by product category
- Active Components (11,579)
- Active Components (4)
- Analogue and Mixed Signal ICs (1,726)
- Communications ICs (Wired) (1,803)
- Discrete Power Devices (418)
- Programmable Logic Devices (597)
- Microprocessors, Microcontrollers and DSPs (2,157)
- Memory Devices and Modules (760)
- Power Supply ICs and Controllers (2,391)
- Communications ICs (Wireless) (1,578)
- Standard Logic Devices (145)
- Passive Components (3,138)
- Passive Components (1)
- Capacitors (682)
- EMC Components (407)
- Frequency Control Components (410)
- Electromechanical Components (571)
- Circuit Protection Devices (494)
- Resistors (315)
- Transformers and Inductors (258)
- Design and Development (9,476)
- Design and Development (1)
- Embedded Software and Operating Systems (1,673)
- Design and Development Hardware (1,030)
- Intellectual Property Cores (1,538)
- Reference Designs (351)
- Design and Development Software (4,578)
- Design Services (305)
- Enclosures and Panel Products (3,362)
- Enclosures and Panel Products (2)
- Handheld and Other Small Enclosures (137)
- Instrument Cases, Benchtop, Wall-Mounting Enclosures (338)
- Floor-Standing Racks, Cabinets, Enclosures (246)
- Fans and Blowers (223)
- Gaskets, Seals and Screens (123)
- Heatsinks and Thermal Management (198)
- LCD Modules (484)
- Monitors (132)
- Other OEM Display Modules, Meters (239)
- Switches and Keyboards (576)
- Rotary Controls, Joysticks etc (136)
- Indicators and Audio (79)
- Touchscreens and Touch Sensors (291)
- Printers, Knobs, Bezels, Other Panelware (151)
- Interconnection (3,028)
- Interconnection (10)
- Antennas and Feeders (304)
- Boards and Backplanes (153)
- Cables and Wires (455)
- PCB Connectors (598)
- Plugs and Sockets (1,174)
- Terminals and Power (279)
- Electronics Manufacturing, Packaging (3,182)
- Industry News (1,935)
- Optoelectronics (1,711)
- Power Supplies (2,461)
- Power Supplies (6)
- AC/DC Power Supplies (1,032)
- Batteries and Chargers (248)
- DC/DC Convertors (881)
- DC/AC Inverters (78)
- OEM Power Supplies (0)
- UPSs (216)
- Subassemblies (4,829)
- Subassemblies (2)
- VMEbus Boards, Assemblies (420)
- CompactPCI Boards, Assemblies (372)
- Embedded Computing and Control (1,261)
- Wireless Communications (1,075)
- Networking Hardware (906)
- PC-Compatible Boards, Assemblies (793)
- Test and Measurement (5,164)
- Test and Measurement (2)
- ATE Systems (392)
- Compliance Engineering (900)
- Sensors and Data Acquisition (901)
- Board-Level Instruments (542)
- Stand-Alone Instruments (2,008)
- Test Accessories (404)
