CHV2240

CHV2240 Multifunction : K-band VCO and Q-band Multiplier GaAs Monolithic Microwave IC Description The CHV2240 is a monolithic multifunction proposed for frequency generation at 38GHz. It integrates a K-band Voltage Controlled Oscillator, a Q-band frequency multiplier and buffer amplifiers. For performance optimisation, an external port (ERC) allows a passive resonator coupling to the oscillator (at half output frequency). This chip has been especially designed to be coupled to a high Q dielectric resonator. All the active devices are internally self biased. The circuit is manufactured with the PHEMT process : 0.25µm gate length, via holes through the substrate, air bridges and electron beam gate lithography. It is available in chip form. +V F_out/2 HIGH Q RESONATOR -V ERC RF_out x2 (F_out) V_tune Multifunction block diagram 38,204 38,202 Output frequency (GHz) T=-40°C 38,2 38,198 38,196 38,194 38,192 38,19 0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 2 Main Features n K-band VCO + Q-band frequency multiplier n External resonator for centre frequency control and phase noise optimisation n High quality oscillator when coupled to a dielectric resonator n On-chip varactor for electronic control n Chip size 2.68x1.4 x 0.1 mm T=+25°C T=+100°C Vtune (V) Typical tuning characteristic Main Characteristics Tamb = +25°C Symbol F_out F_t Pn Pout Parameter Min 37.5 Typ 38.25 5 -100 9 Max 39 Unit GHz MHz dBc/Hz dBm Output frequency Frequency tuning range (high Q resonator) Oscillator...