The ADF4371 supports RF/microwave system designs that must meet exacting next-generation requirements across multiple markets, including aerospace and defence, test/measurement, communications infrastructure, as well as high-speed converter clocking.
The ADF4371 is the highest frequency synthesizer on the market, according to ADI, and is said to offer the widest continuous RF output range of 62MHz to 32GHz.
Together with ultra-low PLL FOM (-234dBc/Hz), ultra-low spurious (-100dBc typ.), low VCO phase noise (-134dBc/Hz @1MHz offset at 8GHz), and with built-in tracking filter technology, this device offers improved levels of performance and adaptability.
Feature-rich, its highly configurable architecture means that designers can now choose a single, ultra-compact, synthesizer solution to cover almost any LO/clock requirement within these frequency ranges, thereby reducing development costs, risk and time to market.
The ADF4371 facilitates implementation of high resolution (39-bit) fractional-N or integer-N PLL frequency synthesizers when used with an external loop filter and an external reference source. The wideband microwave VCO design allows frequencies from 62.5 MHz to 32 GHz to be generated.
The device features the industry’s lowest jitter (36fs at 10 GHz) and reference spurious (-100dBc typ.), together with operation to 105℃ without loss of lock.
For applications requiring very small compact footprints, the ADF4371 supports integrated power supply decoupling, integrated LDOs and integrated harmonic tracking filters. The tracking filter technology facilitates at least 30dB harmonic and sub-harmonic rejection across the entire VCO range. This reduces the total solution footprint, particularly in the case where fixed range filters are required to meet these rejections across octave bandwidths.
For applications that do not require the full frequency range capability of the ADF4371 (up to 32GHz), ADI is able to offer the ADF4372 with operation up to 16GHz.
