FREQUENCY DIVIDERS & DETECTORS - SMT
6
6 - 50
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HMC394LP4 / 394LP4E
GaAs HBT PROGRAMMABLE
5-BIT COUNTER, DC - 2.2 GHz
v08.0607
General Description
Features
Functional Diagram
The HMC394LP4 & HMC394LP4E are low noise
GaAs HBT programmable 5-bit counters in 4 x 4mm
leadless surface mount packages. This device allows
continuous division from N= 2 to 32 at input frequen-
cies 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.
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
Electrical Speci cations, T
A
= +25° C, 50 Ohm System, Vcc= 5V
Typical Applications
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
Parameter Conditions Min. Typ. Max. Units
Maximum Input Frequency 2.2 GHz
Minimum Input Frequency Sine Wave Input [1] 0.1 GHz
Input Power Range Fin = 0.1 to 2.2 GHz -15 >-20 +10 dBm
Output Power Divide-by-2 4 dBm
SSB Phase Noise Fin = 1 GHz, N = 4 -153 dBc/Hz
Output Transition Time 100 ps
Supply Current (Icc) 194 mA
1. Divider will operate down to DC for square-wave input signal.
