v04.1106
Typical Applications
Low noise MMIC VCO w/Buffer Amplifier for C-Band applications such as: • 802.11a & HiperLA...
v04.1106
Typical Applications
Low noise MMIC VCO w/Buffer Amplifier for C-Band applications such as: 802.11a & HiperLAN WLAN VSAT Radios UNII & Point-to-Point Radios
Functional Diagram
11
HMC431LP4 / 431LP4E
MMIC VCO w/ BUFFER AMPLIFIER, 5.5 - 6.1 GHz
Features
Pout: +2 dBm Phase Noise: -102 dBc/Hz @100 kHz No External Resonator Needed Single Supply: 3V @ 27 mA 16mm2 Leadless SMT Package
General Description
The HMC431LP4 & HMC431LP4E are GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCOs with integrated resonators, negative resistance devices, varactor diodes, and buffer
amplifiers. The VCO’s phase noise performance is excellent over temperature, shock, vibration and process due to the oscillator’s monolithic structure. Power output is 2 dBm typical from a 3V supply
voltage. The
voltage controlled oscillator is packaged in a low cost leadless QFN 4 x 4 mm surface mount package.
VCOS & PLOs - SMT
11 - 84
Electrical Specifications, TA = +25° C, Vcc = +3V
Parameter
Min.
Frequency Range
Power Output
-1
SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output
Tune
Voltage (Vtune)
0
Supply Current (Icc) (Vcc= 3.0V)
Tune Port Leakage Current
Output Return Loss
Harmonics 2nd 3rd
Pulling (into a 2.0:1 VSWR)
Pushing @ Vtune= +5V
Frequency Drift Rate
Typ. 5.5 - 6.1
2 -102
27
6
-15 -30 9 12 0.8
Max.
10 10
Units GHz dBm dBc/Hz
V mA μA dB
dBc dBc MHz pp MHz/V MHz/°C
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