CLM4371 is a frequency synthesizer that can be used with an external loop filter and an external reference frequency to form a decimal N-division or integer N-division phase-locked loop (PLL). As a microwave broadband voltage controlled oscillator (VCO), its design supports generating a wide range of frequencies from 62.5MHz to 32GHz. CLM4371 is equipped with a built-in VCO, with a fundamental output frequency range of 4000MHz to 8000MHz, and flexible frequency division function: users can obtain radio frequency (RF) output as low as 62.5 MHz through 1, 2, 4, 8, 16, 32 or 64 times frequency division on the RF8 interface. In addition, the device achieves high-frequency output through multi-stage frequency doubling: the multiplier generates frequencies from 8 to 16 GHz at the RF16 interface; The quadrupler generates frequencies ranging from 16 to 32GHz at the RF32 interface; The RFAUX8 interface can replicate the frequency range of RF8 or directly connect to the VCO output. To suppress the useless product generated during the frequency doubling process, a harmonic filter needs to be configured between the frequency multiplier and the output stages of RF16 and RF32. The product can directly pin to pin replace similar international products without the need to change the circuit board or system software, achieving complete compatibility and replacement. Chiplon Microelectronics has developed its own testing plan to ensure that the factory products meet or even exceed the original specifications, supporting industrial grade working temperatures (-40 ℃~105 ℃).Competing product: ADF4371BCCZ

RF output frequency range: 62.5MHz to 32GHz

Decimal N-division frequency synthesizer and integer N-division frequency synthesizer

High resolution 39 decimal modulus

Typical frequency and phase detector (PFD) spurious: -90 dBc (typical value)

Integrated root mean square (RMS) jitter<40 fs (1 kHz – 100 MHz)

Normalized Phase Noise Floor (FOM) -234 dBc/Hz

Frequency phase detector (PFD) with a working frequency of up to 250MHz

The reference frequency reaches 600MHz

Low phase noise, voltage controlled oscillator (VCO)

Programmable 1, 2, 4, 8, 16, 32, or 64 frequency division outputs

0.06-8 GHz output (RF8)

0.06-8 GHz output (RFAUX8)

8-16 GHz output (RF16)

16-32 GHz output (RF32)

Lock time~3ms, with automatic calibration function

Lock time<20us, with calibration bypass function

Analog and digital power supply: 3.3 V

VCO power supply voltage: 3.3 V and+5 V.

Programmable output power level

RF output mute function

Wireless infrastructure (MC-GSM, 5G)

Satellite/VSAT

Testing equipment/instruments

Clock generation