RF synthesizer helps reduce system size
The ADF5356 generates RF outputs from 53.125 MHz to 13.6 GHz without any gaps in frequency coverage. This allows the device to be used as a multiband synthesizer, eliminating the need for multiple band-specific VCO/synthesizer products and thereby reducing component count, board space, and power. It is well-suited for such applications as wireless infrastructure, microwave point-to-point links, electronic test and measurement, and satellite terminals.
Manufactured on a SiGe BiCMOS process, the ADF5356 and ADF4356 provide VCO phase noise of -113 dBc/Hz at 100 kHz offset and 5 GHz with integrated jitter of just 97 fs (1 kHz to 20 MHz) and integer-channel noise floor of -227 dBc/Hz. Phase detector spurious levels are below -85 dBc typical, and phase detector comparison frequency can be as high as 125 MHz.
The ADF5356 and ADF4356 are specified over a temperature range of -40°C to +85°C and operate from nominal 3.3 V analog and digital power supplies, as well as 5 V charge-pump and VCO supplies. Housed in 32-lead, 5×5 mm LFCSPs, the ADF5356 and ADF4356 cost $39.98 and $20.36, respectively, in lots of 1000 units.
ADF5356 product page
ADF4356 product page
Analog Devices, www.analog.com
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