CHR3894-98F

CHR3894-98F RoHS COMPLIANT 37-40GHz Integrated Down Converter GaAs Monolithic Microwave IC Description The CHR3894-98F is a multifunction monolithic receiver, which integrates a balanced cold fet mixer, a LO chain with buffers associated to a time two multiplier, and a RF low noise amplifier including gain control. It is designed for a wide range of applications, from military to commercial communication systems. The circuit is manufactured with a pHEMT process, 0.15µm gate length, via holes through the substrate, air bridges and electron beam gate lithography. It is available in chip form. LO IN IF_I VGX IF_Q X2 VD VD1 VGL GC RF IN Main Features ■ Broadband performances: 37-40GHz ■ 13dB Conversion gain ■ 16dBc Image Rejection ■ 2dBm IIP3 without attenuation (GC=-2V) ■ 8dB Gain Control range ■ 4.5dB Noise Figure for IF>0.1GHz ■ 0dBm LO input Power ■ DC bias: Vd=4V @ Id=250mA ■ Chip size 2.6x2.7x0.1mm Conversion gain (USB mode) @ IF 2GHz 20 18 Conversion gain (dB) 16 14 12 10 8 6 4 2 0 35 36 37 38 39 40 41 42 43 44 -2V -0.4V -0.2V 0V +0.6V RF Frequency (GHz) Main Characteristics Tamb.= +25°C Symbol Parameter FRF RF frequency range FOL LO frequency range FIF IF frequency range G Conversion gain without attenuation Min 37 17.5 DC Typ Max 40 21.0 3.5 Unit GHz GHz GHz dB 13 Ref. : DSCHR38941192 - 11 Jul 11 1/12 Specifications subject to change without notice United Monolithic Semiconductors S.A.S. Route Départementale 128 - BP46 - 91401 Orsay Cedex France Tel.: +33 (...