Analog Devices Inc./Maxim Integrated

The HMC444LP4(E) is an active miniature x8 frequency multiplier utilizing InGaP GaAs HBT technology in 4x4 mm leadless surface mount package. Power output is +6 dBm typical from a 5V supply voltage and varies little vs. input power, temperature and supply voltage.Suppression of undesired fundamental and sub-harmonics is >25 dBc typical with respect to output signal level. The low additive SSB phase noise of -136 dBc/Hz at 100 kHz offset helps the user maintain good system noise performance. The HMC444LP4(E) is ideal for use in LO multiplier chains allowing reduced parts count vs. traditional approaches.APPLICATIONSFiber OpticPoint-to-Point RadiosMilitary Radar

The HMC447LC3 is a low noise Divide-by-4 Regenerative Divider utilizing InGaP GaAs HBT technology. This wideband divider operates with input frequencies from 10 to 26 GHz, and accepts a very wide range of input power levels. THe HMC447LC3 exhibits a very low SSB Phase Noise of -150 dBc/Hz at 100 kHz offset, making it ideal for use in high frequency Phase Locked Loops (PLL), and in Local Oscillator (LO) distribution applications where fundamental and divided LO frequencies are required within a system.This versatile divider consumes only 96 mA from a single positive supply of +5V, and delivers very flat output power across the rated bandwidth. The HMC447LC3 is housed in a RoHS compliant, 3x3 mm leadless SMT package with an exposed ground paddle.APPLICATIONSPoint-to-Point/Multi-Point RadiosVSAT RadiosFiber OpticTest EquipmentMilitary

The HMC448 die is a x2 active broadband frequency multiplier chip utilizing GaAs PHEMT technology. When driven by a 0 dBm signal, the multiplier provides +11 dBm typical output power from 19 to 25 GHz. The Fo and 3Fo isolations are >22 dBc up to 22 GHz. This multi-rate frequency multiplier can be used in the generation of a half rate clock for 40 Gbps systems or as part of a multiplier chain to generate a full rate 40 Gbps clock.The HMC448 is also ideal for use in LO multiplier chains for Pt to Pt & VSAT Radios yielding reduced parts count vs. traditional approaches. The low additive SSB Phase Noise of -135 dBc/Hz at 100 kHz offset helps maintain good system noise performance. All data is with the chip in a 50 ohm test fixture connected via 0.076 × 0.0127mm (3mil × 0.5mil) ribbon bonds of minimal length 0.31mm (<12mils).APPLICATIONSClock Generation Applications:SONET OC-192 & SDH STM-64Point-to-Point & VSAT RadiosTest InstrumentationMilitary & Space