HMC394LP4 Datasheet, PDF (1/10 Pages) Hittite Microwave Corporation – GaAs HBT PROGRAMMABLE 5-BIT COUNTER, DC - 2.2 GHz

v04.1102
MICROWAVE CORPORATION
10
Typical Applications
Programmable divider for offset synthesizer
and variable divide by N applications:
• Satellite Communication Systems
• Pt-Pt and Pt-MPt Radios
• LMDS
• SONET
Functional Diagram
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
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 Specifications, T_A = +25° C, 50 Ohm System, Vcc= 5V
Parameter
Conditions
Min.
Typ.
Maximum Input Frequency
2.2
Minimum Input Frequency
Sine Wave Input [1]
Input Power Range
Fin = 0.1 to 2.2 GHz
-15
>-20
Output Power
Divide-by-2
4
SSB Phase Noise
Fin = 1 GHz, N = 4
-153
Output Transition Time
100
Supply Current (Icc)
194
1. Divider will operate down to DC for square-wave input signal.
Max.
0.1
+10
Units
GHz
GHz
dBm
dBm
dBc/Hz
ps
mA
10 - 56
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order Online at www.hittite.com