ADF4372 Datasheet | Analog Devices

FEATURES GENERAL DESCRIPTION RF output frequency range: 62.5 MHz to 16,000 MHz The ADF4372 allows implementation of fractional-N or integer-N Fractional-N synthesizer and integer-N synthesizer phase-locked loop (PLL) frequency synthesizers when used with High resolution 39-bit fractional modulus an external loop filter and an external reference frequency. The Typical spurious f PFD: - 90 d Bc wideband microwave voltage controlled oscillator (VCO) design Integrated rms jitter: 38 fs (1 k Hz to 100 MHz) allows frequencies from 62.5 MHz to 16 GHz to be generated. Normalized phase noise floor: - 234 d Bc/Hz f PFD operation to 250 MHz Reference input frequency operation to 600 MHz Programmable divide by 1, 2, 4, 8, 16, 32, or 64 output 62.5 MHz to 8,000 MHz output at RF8x and RFAUX8x 8,000 MHz to 16,000 MHz output at RF16x Lock time approximately 3 ms with automatic calibration Lock time <30 μs with autocalibration bypassed, typical Analog and digital power supplies: 3.3 V typical VCO supply voltage: 3.3 V and 5 V RF output mute function 7 mm × 7 mm, 48-terminal LGA package APPLICATIONS The ADF4372 has an integrated VCO with a fundamental output frequency ranging from 4000 MHz to 8000 MHz. In addition, the VCO frequency is connected to a divide by 1, 2, 4, 8, 16, 32, or 64 circuit that allows the user to generate radio frequency (RF) output frequencies as low as 62.5 MHz at RF8x. A frequency multiplier at RF16x generates from 8 GHz to 16 GHz. RFAUX8x duplicates the frequency range of RF8x or permits direct access to the VCO output. To suppress the unwanted products of frequency multiplication, a harmonic filter exists between the multiplier and the output stage of RF16x. Control of all on-chip registers is through a 3-wire interface. The ADF4372 operates with analog and digital power supplies ranging from 3.15 V to 3.45 V, and 5 V for the VCO power Wireless infrastructure (multicarrier global system for supply. The ADF4372 also contains hardware and software...