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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

General Description

Features

Functional Diagram

The HMC494LP3 & HMC494LP3E are low noise

Divide-by-8 Static Dividers utilizing InGaP GaAs HBT

technology packaged in leadless 3x3 mm QFN sur-

face mount plastic packages. This device operates

from DC (with a square wave input) to 18 GHz input

frequency from a single +5V DC supply. The low addi-

tive SSB phase noise of -150 dBc/Hz at 100 kHz offset

helps the user maintain excellent system noise per-

formance.

Ultra Low SSB Phase Noise: -150 dBc/Hz

Very Wide Bandwidth

Output Power: -4 dBm

Single DC Supply: +5V

3x3 mm QFN Package

Typical Applications

Prescaler for DC to 18 GHz PLL Applications:

• Point-to-Point / Multi-Point Radios

• VSAT Radios

• Fiber Optic

• Test Equipment

• Military

Parameter

Conditions

Min.

Typ.

Max.

Units

Maximum Input Frequency

18

19

GHz

Minimum Input Frequency

Sine Wave Input. [1]

0.2

0.5

GHz

Input Power Range

Fin = 2 to 12 GHz

-20

-15

+10

dBm

Fin = 12 to 16 GHz

-20

-15

+3

dBm

Fin = 16 to 18 GHz

-15

-10

0

dBm

Output Power

Fin = 0.5 to 18 GHz

-7

-4

dBm

Reverse Leakage

Both RF Outputs Terminated

55

dB

SSB Phase Noise (100 kHz offset)

Pin = 0 dBm, Fin = 6 GHz

-150

dBc/Hz

Output Transition Time

Pin = 0 dBm, Fout = 882 MHz

100

ps

Supply Current (Icc1 + Icc2)

103

mA

SMT GaAs HBT MMIC

DIVIDE-BY-8, DC - 18 GHz

v04.0507

1. Divider will operate down to DC for square-wave input signal