HMC440QS16G

Ultra Low SSB Phase Noise Floor:
-153 dBc/Hz@10 kHz offset @ 100 MHz Reference Frequency.
Programmable Divider (N= 2-32) Operating up to 2.8 GHz
Open Collector Output Buffer Amplifi ers for
Interfacing w/ Op-Amp Based Loop Filter
QSOP16G SMT Package: 29.4 mm²

This Phase Frequency Detector w/ integrated Counter is a key component in low phase noise frequency synthesis applications such as:
• Satellite Communication Systems
• Pt-Pt Radios
• Military Applications
• Sonet Clock Generation

The HMC440QS16G integrates a 10 to 1300 MHz digital Phase-Frequency Detector with a 10 to 2800 MHz 5-Bit Counter (continuous division from 2 to 32) in a miniature 16 lead QSOP plastic package. It is intended for use in low phase noise offset-synthesizer applications. The HMC440QS16G's combination of high frequency operation along with ultra low phase noise fl oor make possible synthesizers with wide loop bandwidth and low N resulting in fast settling and very low phase noise. When used in conjunction with a differential loop amplifi er, the HMC440QS16G generates an output voltage that can be used to phase lock a VCO to a reference oscillator.