|Fully Integrated Q-band VCO based on Ku-band Oscillator and Q-band Multiplier
The is a monolithic multifunction for frequency generation. It integrates a Ku-band oscillator with frequency control (VCO), a Q-band frequency multiplier and buffer amplifiers. The VCO is fully integrated. On chip P-HEMT based Schottky diode is used as varactor. All the active devices are internally self biased. The circuit is manufactured with the PHEMT process : 0.25�m gate length, via holes through the substrate, air bridges and electron beam gate lithography. It is available in chip form.
Ku-band VCO + Q-band multiplier Fully integrated VCO Wide frequency tuning range PLL oriented Auxiliary output at VCO frequency High temperature range On-chip self biasing Automatic assembly oriented Chip size 0.1 mm
Tamb = +25�C Symbol F_out F_vco F_tune1 Pout Parameter Output centre frequency Oscillator frequency Output frequency tuning range Output power 1.5 5 Min 38 Typ 3 7 GHz dBm Max 38.5 Unit GHzESD Protections : Electrostatic discharge sensitive device observe handling precautions !
Ref. -15-Mar.-01 1/6 Specifications subject to change without notice
Full temperature range, used according to section "Typical assembly and bias configuration" Symbol F_out F_vco F_tune2 F_tune2(T) P_out H1 H2 P_VCO V_tune F_slope F_slope(T) P_V+ P_VPN Parameter Output centre frequency VCO frequency Maximum frequency tuning range F_out) Specified frequency tuning range F_out) (1) Maximum variation of Frequency over temperature (2) Output power on RF_out port Sub-harmonics rejection (Fout/3) (2) Sub-harmonics rejection (2*Fout/3) (2) VCO output power on VCO_out_aux port (4) Control voltage range Frequency tuning slope (2) Maximum variation of Frequency tuning slope over temperature (2) Frequency pushing vs positive supply voltage (2) Frequency pushing vs negative supply voltage (2) Phase noise (given at F_out) @ 1MHz Positive supply voltage (3) Positive supply current Negative supply voltage (3) Negative supply current Operating temperature range Min tbd 0.5-1 2800 Typ 3 300 Max Unit GHz MHz dBm dBc V MHz/v % MHz/v
F_tune2 is the frequency tuning range relative to the specified parameters, this frequency tuning range has to be inside 38.5GHz. (2) Specified within F_tune2 (3) Negative supply voltage must be applied at least 1�s before positive supply voltage (4) This output is optional, it can be not connected
Parameter Tuning voltage Positive supply voltage Negative supply voltage Positive supply current Negative supply current Storage temperature rangeOperation of this device above anyone of these parameters may cause permanent damage.