Hittite HMC251MS8 Datasheet
MICROWAVE CORPORATION
GaAs MMIC SMT PRESCALER 3.0 - 6.5 GHz
FEBRUARY 2000
HMC251MS8
6
Features
DIVIDE-BY-TWO
LOW PHASE NOISE: -130 dBc/Hz @ 10KHz
SINGLE POSITIVE BIAS VOLTAGE: +5.0V @ 27 mA
MINIATURE SMALL OUTLINE PACKAGE : MSOP8
General Description
The HMC251MS8 is a low noise divideby-2 GaAs MMIC prescaler in an 8 lead
surface mount MSOP plastic package.
This device operates from 3.0 to 6.5 GHz
(input frequency) with a single +5.0 V DC
supply while drawing only 27 mA of current. The low residual phase noise of this
prescaler helps the user maintain good
system noise performance. The
HMC251MS8 is ideal for WLL, UNII, ISM
and VSAT applications. This is the smallest divide-by-2 prescaler available.
Guaranteed Performance, V
PRESCALERS
Parameter Condition Min Typical Max Units
Input Frequency Range 3.0 - 6.5 GHz
SMT
Output Frequency Range 1.5 - 3.25 GHz
Operating Input Power Range fin = 3.0 - 4.0 GHz
fin = 4.0 - 5.0 GHz
fin = 5.0 - 6.0 GHz
fin = 6.0 - 6.5 GHz
Output Power for minimum Input
Powe r l ev el
Note 1
Single-Side-Band Phase Noise fin = 5.0 - 6.0 GHz
Supply Voltage (Vdd) 4.75 5.0 5.25 Vdc
Supply Current (Idd) Vdd = +5.0 Vdc 27 33 mA
Note 1: Output Power measured at half the Input Frequency.
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
fin = 3.0 - 4.0 GHz
fin = 4.0 - 5.0 GHz
fin = 5.0 - 6.0 GHz
fin = 6.0 - 6.5 GHz
Offset from carrier= 10KHz
= +5.0 V, 50 Ohm System, -40 to +85 deg C
dd
10
10
10
7
-3
-3
-3
-3
-2
-8
-3
-12
-14
-16
-17
6
-8.0
-7.7
-8.2
-8.5
-130 dBc/Hz
6 - 2
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
MICROWAVE CORPORATION
HMC251MS8 SMT PRESCALER 3.0 - 6.5 GHz
HMC251MS8
FEBRUARY 2000
Output Power Versus Frequency @
Minimum Input Power Level
0
-2
-4
-6
-8
-10
OUTPUT POWER (dBm)
-12
-14
3 3.5 4 4.5 5 5.5 6 6.5
+85 C
INPUT FREQUENCY (GHz)
-40 C
+25 C
Output Power for Input Power = +10 dBm
Note: Output Power Measured @ fin/2
0
-2
-4
-6
-8
-10
OUTPUT POWER (dBm)
-12
-14
3 3.5 4 4.5 5 5.5 6 6.5
INPUT FREQUENCY (GHz)
Minimum Input Power Versus
Input Frequency
20
10
Guaranteed
0
-10
-40 C
-20
MINIMUM INPUT POWER (dBm)
-30
3 3.5 4 4.5 5 5.5 6 6.5
INPUT FREQUENCY (GHz)
+25 C
Operating
Window
+85 C
Single-Side-Band Phase Noise Versus
Offset from Carrier, fin= 5 to 6 GHz
-80
-90
-100
-110
-120
-130
-140
SSB PHASE NOISE (dBc/Hz)
-150
-160
1
10
2
10
OFFSET FROM CARRIER (Hz)
3
10
4
10
5
10
6
PRESCALERS
SMT
6
10
S - Parameter data is available On-Line at www.hittite.com
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
6 - 3
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