v01.0302
MICROWAVE CORPORATION
HMC398QS16G
Ku-Band MMIC VCO with
DIVIDE-BY-8, 14.0 - 15.0 GHz
Features
Pout: +7 dBm
Phase Noise: -105 dBc/Hz @100 KHz Typ.
No External Resonator Needed
Single Supply: 5V @ 325 mA
QSOP16G SMT Package
Typical Applications
Low noise MMIC VCO w/Divide-by-8
for Ku-Band applications such as:
鈥?Pt to Pt Radios
鈥?Multi-Pt Radios / LMDS
鈥?VSAT
Functional Diagram
General Description
The HMC398QS16G is a single chip GaAs
InGaP Heterojunction Bipolar Transistor (HBT)
MMIC VCO. The HMC398QS16G integrates a
resonator, negative resistance device, varac-
tor diode and divide-by-8 prescaler. The VCO鈥檚
phase noise performance is excellent over tem-
perature, shock, and process due to the oscilla-
tor鈥檚 monolithic structure. Power output is +7 dBm
typical from a 5V supply voltage. The voltage
controlled oscillator is packaged in a low cost,
surface mount 16 leaded QSOP package with
an exposed base for improved RF and thermal
performance. The HMC398QS16G requires no
external components
15
VCOs - SMT
Parameter
Frequency Range
Power Output
Electrical Speci鏗乧ations,
T
A
= +25擄 C, Vcc1, Vcc2 = +5.0V
Min.
Typ.
14.0 - 15.0
RF Output
Divided Output
+3
-9
+7
-6
-105
Vtune
Icc 1 (Digital)
Icc 2 (RF)
1.0
65
260
10
2
1/2
3/2
2nd
5/2
-20
-30
-12
-40
4
30
1.5
10.0
Max.
Units
GHz
dBm
dBm
dBc/Hz
V
mA
mA
碌A(chǔ)
dB
dBc
dBc
dBc
dBc
MHz pp
MHz/V
MHz/擄C
SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output
Tune Voltage
Supply Current
Tune Port Leakage Current (Vtune= 10V)
Output Return Loss
Harmonics/Subharmonics
Pulling (into a 2.0:1 VSWR)
Pushing @ Vtune= 5V
Frequency Drift Rate
15 - 50
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