Microwave Engineering Europe - April 2008 - (Page 34)

34 PRODUCTS PLL frequency synthesizer portfolio claims industry’s lowest low phase noise in satellite applications Peregrine Semiconductor Corporation has anounced the UltraCMOS™ PE97022 and PE97042 phase locked loop (PLL) frequency synthesizers for satellite payload designs. The new pair of 3.5 GHz Integer-N PLLs boast an ultralow normalized phase noise of -216 dBc/Hz, which is the lowest phase noise of any radhard PLL on the market today. Additionally, the two PLLs feature programmable counters, a phase comparator and +10/11 Dual Modulus Prescaler, allowing for backward compatibility to previous generation PLLs. The PE97042 offers direct or serial programming modes, while the PE97022 offers an additional parallel mode option. PLLs are used for a variety of purposes, including skew suppression, frequency synthesis for local A superior resistance to Single Event Upset (SEU) of less than 10-9 errors per bit-day and tolerance to total dose radiation of up to 100 Krads (Si) make these devices ideal for the demanding rigors of space applications. Further, because the PE97022 and PE97042 are manufactured on the UltraCMOS process, the devices utilize ultra-low power of approximately 45 mA to meet system-level requirements. The most fundamental beneﬁt of UltraCMOS products for space applications is its inherent ability to integrate RF, mixed signal analog and digital on the same device. Both devices are offered in the 44-pin CQFJ package, while the PE97042 is also available in die form. www.mwee.com/206903996 oscillators, signal modulation and demodulation, clock recovery, jitter reduction, regeneration of signals and pulse synchronization of signals from mass storage devices. Phase noise has traditionally been a challenge for any satellite application. Satellite manufacturers have sourced Peregrine’s PLLs for the most demanding applications, and with these new specs the company has dramatically improved the performance to meet or exceed most of the satellite phase noise requirements. The UltraCMOS silicon-onsapphire based devices are fully space qualiﬁed and immune to Single Event Latch-up (SEL). 3.3-V ZIF tuner IC targets UHF-band MMDS applications Maxim Integrated Products has released the MAX2117 zero-IF (ZIF) tuner for UHFband multichannel multipoint distribution service (MMDS) applications. This tuner IC receives QPSK signals in the 470 MHz to 1000 MHz range and down-converts them to baseband for demodulation. Specifically designed for China’s UHF-band MMDS systems, the MAX2117 is compatible with most DVBS demodulators. A low 8 dB (typical) noise figure, combined with a better than 25 dB (typical) adjacentchannel protection ratio (ACPR), makes this device ideal for MMDS applications. The MAX2117 ZIF tuner IC operates from a single, 3.3-V 5-percent supply and consumes only 330 mW. Though it has been designed to operate with a low-cost RF emissions measurement software comes in a portable one-box solution The RFEX-Fast EMF measurement software from Rohde & Schwarz enables engineers and technicians to quickly and easily validate compliance with legally defined emission limits. The portable one-box measurement system together with the FSL spectrum analyzer and the TS-EMF isotropic antenna is especially suitable for performing measurements outdoors or in highly inaccessible locations. The compact RFEXFast software solution is designed for measurements on equipment such as base stations and broadcast transmitters; plus, it is also ideal for fixed-site transmission systems or WLAN infrastructures. The software performs the measurements in a matter of seconds and displays the individual radio services. Engineers and technicians can see at a glance whether minimum and maximum limits, such as those defined by ICNIRP (International Commission on Non-Ionizing Radiation Protection), have been violated. A simple maximum search of the electromagnetic field strength can also be performed. The software is easy to configure because the radio services are solely defined by their frequency range. This permits the system to adapt quickly to the measurement task. The results can be interpreted immediately since the sum value of the field strength is output directly. Further, the software supports several of the company’s spectrum analyzers www.mwee.com/206901214 4 MHz crystal, an internal reference divider allows the user to select any crystal in the 4 MHz to 8 MHz range. Fully specified over the 0 to +70 degrees Celsius commercial temperature range, the ZIF tuner is available in a small, 5mm x 5mm, 28-pin TQFN package. An evaluation kit is also available to speed designs. www.mwee.com/206903975 Microwave Engineering Europe ● April 2008 ● www.mwee.com 034_MWEE.indd Sec1:34 28/03/08 14:00:03 http://www.mwee.com/206903996 http://www.mwee.com/206901214 http://www.mwee.com/206903975 http://www.mwee.com

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Microwave Engineering Europe - April 2008 News Contents Comment Test and Measurement: Comprehensive WiMAX and Wi-Fi Product Design Demands Effective Channel Emulation Military/Aerospace Focus: Hardware Needs Limit Software Radio Interview — Mitsubishi Electric Europe: GaAs Technologies Spanning High-End Space and Radar Through to Cost-Sensitive Handset and LNB Applications How Do You Test ZigBee Transmitters? Advanced Receiver Design Boosts Performance CMOS PAs Pave the Way for One-Chip Phones Products Calendar

Microwave Engineering Europe - April 2008

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