HMC732LC4BTR

This is a broadband monolithic microwave voltage controlled oscillator developed by Analog Devices based on GaAs semiconductor process, with built-in buffer amplifier, integrating resonant cavity, varactor diode and negative resistance circuit entirely inside the chip for microwave local oscillator signal generation across ultra-wide frequency bands.

HMC732 stands for the core model of 6~12GHz broadband VCO series. LC4 refers to 24-pin leadless ceramic encapsulated surface mount packaging sized 4mm×4mm. B represents complete functional configuration with integrated output buffer amplifier. TR stands for tape-and-reel packaging designed for automated SMT mass production mounting.

The continuous working frequency range covers 6GHz to 12GHz, fully tuned by analog voltage. The tuning pin accepts adjustable voltage ranging from 0V to 23V to realize continuous frequency sweeping. The chip adopts single 5V positive power supply, quiescent operating current is fixed at 57mA with moderate power consumption level.

Typical single-sideband phase noise reaches -95dBc/Hz under 100kHz frequency offset, delivering clean spectral signals and minimizing signal interference during frequency conversion. Standard RF output power is +1dBm, internal buffer ensures stable output impedance matched to 50 ohm universal RF system standard.

Typical output return loss is 15dB, secondary harmonic suppression performance hits -12dBc, frequency temperature drift is kept low across the whole temperature range. No external discrete resonant components are required, greatly simplifying peripheral radio frequency matching circuit design.

It adopts 24-pin LCC leadless ceramic exposed pad packaging with overall dimension 4mm×4mm, ultra-small footprint saves massive layout space on RF mainboards. The bottom metal pad provides reliable heat conduction channel to stabilize internal oscillation circuit temperature. It is classified as MSL3 moisture sensitive component, reflow soldering operations must be finished within 168 hours after opening original vacuum packaging. Standard reel feeding packaging is supplied to cooperate with fully automatic placement equipment on production lines.

Stable continuous operating temperature range is -40℃ ~ +85℃, capable of working steadily in communication cabinets, outdoor microwave equipment and testing instruments with severe temperature fluctuations. The whole component adopts lead-free production technology and complies with global environmental material restriction norms. Monolithic integrated structure effectively avoids performance inconsistency caused by discrete device assembly errors.

Microwave point-to-point communication equipment local oscillator signal source and radio front-end frequency generation unit

Spectrum analyzers, signal generators and other precision RF testing instruments internal oscillation modules

Short-range radar sensing equipment, linear frequency modulation ranging radar reference clock circuit

Electronic countermeasure equipment, broadband receiving system local oscillator frequency source

Industrial high-frequency testing equipment, medical microwave diagnostic instrument signal generating modules

LXB Semicon supplies original Analog Devices HMC732LC4BTR broadband 6-12GHz VCO microwave oscillator chip