English
Language : 

HMC391LP4 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – MMIC VCO w/ BUFFER AMPLIFIER, 3.9 - 4.45 GHz
v01.0604
MICROWAVE CORPORATION
Typical Applications
Low noise MMIC VCO w/Buffer Amplifier for:
• VSAT & Microwave Radio
• Radio Altimetry
• Test Equipment & Industrial Controls
• Military
Functional Diagram
15
HMC391LP4
MMIC VCO w/ BUFFER
AMPLIFIER, 3.9 - 4.45 GHz
Features
Pout: +5.0 dBm
Phase Noise: -106 dBc/Hz @100 KHz
No External Resonator Needed
Single Supply: +3V @ 30 mA
QFN Leadless SMT Package, 16 mm2
General Description
The HMC391LP4 is a GaAs InGaP Heterojunc-
tion Bipolar Transistor (HBT) MMIC VCO with
integrated resonator, negative resistance device,
varactor diode, and buffer amplifier. Covering
3.9 to 4.45 GHz, the VCO’s phase noise per-
formance is excellent over temperature, shock,
vibration and process due to the oscillator’s
monolithic structure. Power output is 5.0 dBm
typical from a single supply of +3V @ 30 mA.
The voltage controlled oscillator is packaged in a
low cost leadless QFN 4 x 4 mm surface mount
package.
15 - 44
Electrical Specifications, TA = +25° C, Vcc = +3V
Parameter
Min.
Typ.
Max.
Frequency Range
3.9 - 4.45
Power Output
1.5
5.0
SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output
-106
Tune Voltage (Vtune)
0
10
Supply Current (Icc) (Vcc = +3.0V)
30
Tune Port Leakage Current
10
Output Return Loss
7
Harmonics
2nd
-9
3rd
-23
Pulling (into a 2.0:1 VSWR)
8.0
Pushing @ Vtune= +5V
16
Frequency Drift Rate
0.5
Units
GHz
dBm
dBc/Hz
V
mA
µA
dB
dBc
dBc
MHz pp
MHz/V
MHz/°C
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com