v04.1102
MICROWAVE CORPORATION
HMC394LP4
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
Features
SSB Phase Noise: -153 dBc/Hz @ 100 kHz
Selectable Division from 2 to 32
Parallel 5-Bit Control
Wide Input Power Range: -20 to +10 dBm
4mm x 4mm Leadless SMT Package
Typical Applications
Programmable divider for offset synthesizer
and variable divide by N applications:
鈥?Satellite Communication Systems
10
FREQ. DIVIDER & DETECTORS - SMT
鈥?Pt-Pt and Pt-MPt Radios
鈥?/div>
LMDS
鈥?SONET
Functional Diagram
General Description
The HMC394LP4 is a low noise GaAs HBT pro-
grammable 5-bit counter in a 4mm x 4mm lead-
less surface mount package. This device allows
continuous division from N= 2 to 32 at input fre-
quencies up to 2.2 GHz. The output voltage swing
is 800 mV with a duty cycle inversely proportional
to N. The low additive SSB phase noise of -153
dBc/Hz at 100 KHz offset makes this counter an
excellent choice for low noise synthesizer appli-
cations.
Electrical Speci鏗乧ations,
T
A
= +25擄 C, 50 Ohm System, Vcc= 5V
Parameter
Maximum Input Frequency
Minimum Input Frequency
Input Power Range
Output Power
SSB Phase Noise
Output Transition Time
Supply Current (Icc)
Sine Wave Input [1]
Fin = 0.1 to 2.2 GHz
Divide-by-2
Fin = 1 GHz, N = 4
-15
>-20
4
-153
100
194
Conditions
Min.
2.2
0.1
+10
Typ.
Max.
Units
GHz
GHz
dBm
dBm
dBc/Hz
ps
mA
1. Divider will operate down to DC for square-wave input signal.
10 - 56
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
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