Designer Kits

Hittite Microwave introduces a family of GaAs MMIC Mixers with LO and IF amplifiers for Cellular/PCS/3G applications. These mixers are ideal for low cost infrastructure applications where a combination of small size, low LO drive and high linearity/isolation is required.

The 1.3 to 2.5 GHz HMC421QS16 is a high linearity down-converter RFIC coupled with a high dynamic range IF amplifier that achieves an output IP3 of +29 dBm. The RFIC provides 8 dB of gain while operating from a single +5V, 60 mA supply and a LO drive of +10 dBm. The HMC421QS16 requires no external baluns and minimal off chip components.

The HMC422MS8 and HMC423MS8 both provide 30 to 35 dB of RF/LO isolation and input IP3 of +15 dBm. The HMC422MS8 covers applications between 1.2 to 2.5 GHz band while the HMC423MS8 covers 0.6 to 1.3 GHz. A single positive supply voltage biases the on-board LO amplifiers with the HMC422MS8 requiring +3V @ 30mA and the HMC423MS8 requiring +3V @ 15mA. These mixers can be used as up or down converters.

The HMC421QS16 is packaged in a low cost, surface mount 16 lead QSOP package (5 x 6 mm) while the HMC422MS8 and HMC423MS8 are both packaged in low cost, surface mount 8 lead MSOP packages (3 x 5 mm).

Sample and production quantities are available from stock. Data sheets are available on our web site, www.hittite.com , or can be faxed upon request.