HMC394LP4_07 Datasheet, PDF (1/10 Pages) Hittite Microwave Corporation – GaAs HBT PROGRAMMABLE 5-BIT COUNTER, DC - 2.2 GHz

v08.0607
Typical Applications
6
Programmable divider for offset synthesizer
and variable divide by N applications:
• Satellite Communication Systems
• Point-to-Point and Point-to-Multi-Point Radios
• LMDS
• SONET
Functional Diagram
HMC394LP4 / 394LP4E
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 & HMC394LP4E are low noise
GaAs HBT programmable 5-bit counters in 4mm x
4mm leadless surface mount packages. This device
allows continuous division from N= 2 to 32 at input
frequencies 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 applications.
Electrical Specifications, T_A = +25° C, 50 Ohm System, Vcc= 5V
Parameter
Conditions
Maximum Input Frequency
Minimum Input Frequency
Sine Wave Input [1]
Input Power Range
Fin = 0.1 to 2.2 GHz
Output Power
Divide-by-2
SSB Phase Noise
Fin = 1 GHz, N = 4
Output Transition Time
Supply Current (Icc)
1. Divider will operate down to DC for square-wave input signal.
Min.
Typ.
2.2
-15
>-20
4
-153
100
194
Max.
0.1
+10
Units
GHz
GHz
dBm
dBm
dBc/Hz
ps
mA
6 - 50
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com