Signal to noise ratio enhanced by PLL frequency synthesiser
Peregrine Semiconductor’s high-performance Integer-N phase-locked loop (PLL) is now available from Arrow RF & Power with full design support. The PE33241 is capable of frequency synthesis up to 5 GHz and offers a low phase noise figure of merit. This improves the signal-to-noise ratio of the LO output, improving performance of the frequency conversion stages.
It is designed for use in a range of industrial and military low phase noise applications, including point-to-point radios, wireless infrastructure, and CATV equipment.
The device offers superior phase noise performance with a direct or serial programming option. It features a selectable prescaler modulus of 5/6 or 10/11, counters, and a phase comparator. Counter values are programmable through a serial interface, or they can be directly hard-wired.
The new PLL is available in a 48-lead, 7 mm x 7 mm QFN and is manufactured on Peregrine’s UltraCMOS process, a patented variation of silicon-on-insulator (SOI) technology on a sapphire substrate, offering excellent RF performance.
According to Peregrine, additional key features of the PE33241 include:
- Frequency range
- 5 GHz in 10/11 prescaler modulus
- 4 GHz in 5/6 prescaler modulus
- Phase noise floor figure of merit: -230 dBc/Hz
- Low power: 75 mA typical @ 2.8V
- Internal phase detector
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