CHM2378A

CHM2378a W-band Dual Channel Mixer GaAs Monolithic Microwave IC Description The CHM2378 is a dual channel mixer. Each mixer cell is a balanced structure based on a six quarter wave ring. The nonlinear devices are high quality Schottky diodes providing low conversion loss and very low 1/f noise. This circuit is manufactured with the BESMMIC process: 1 µm Schottky diode device, air bridges, via holes through the substrate, stepper lithography. It is available in chip form. Conversion gain (dB) RF1 LO RF2 IF2 IF1 Dual channel mixer block diagram -5 -6 Main Features n n n n n n n n n W-band LO and RF frequency range Low conversion loss IF from DC to 100MHz High LO/RF isolation High LO/AM noise rejection Very low 1/f noise Low LO input power Automatic assembly oriented Chip size: 1.98 x 2.07 x 0.10 mm -7 -8 -9 -10 -11 -12 -13 -14 -15 75 75,5 76 76,5 LO frequency (GHz) 77 77,5 78 Typical conversion characteristic LO power = 8dBm ; IF=10MHz (measurement in test fixture) Main Characteristics Tamb. = 25°C Symbol F_lo, F_rf F_if Lc I_lo/rf N_if Parameter LO,RF frequency IF frequency range Conversion loss LO/RF isolation IF noise @ 100kHz Min 76 DC-100 Typ 76.5 Max 77 Unit GHz MHz 7.5 25 -162 9.5 dB dB dBm/Hz ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions ! Ref. : DSCHM23781269 -26-Sep.-01 1/8 Specifications subject to change without notice United Monolithic Semiconductors S.A.S. Route Départementale 128 - B.P.46 - 91401 Ors...