
Hittite Microwave
General Description
The HMC338 chip is a sub-harmonically pumped (x2) MMIC mixer with an integrated LO amplifier which can be used as an upconverter or downconverter. The chip utilizes a GaAs PHEMT technology that results in a small overall chip area of 1.28mm2. The 2LO to RF isolation is excellent eliminating the need for additional filtering. The LO amplifier is a single bias (+3V to +4V) two stage design with only -5 dBm nominal drive requirement. All data is measured with the chip in a 50 ohm test fixture connected via 0.076 mm (3 mil) ribbon bonds of minimal length <0.31 mm (<12 mils).
FEATUREs
Integrated LO Amplifi er: -5 dBm Input
Sub-Harmonically Pumped (x2) LO
High 2LO/RF Isolation: 33 dB
Small Size: 0.97mm x 1.32mm
Typical Applications
The HMC338 is ideal for:
• 26 and 33 GHz Microwave Radios
• Up and Down Converter for Point to Point Radios
• Satellite Communication Systems