MICROWAVE CORPORATION
HMC173MS8
General Description
The HMC173MS8 is a miniature absorp-
tive voltage variable attenuator in an 8-
lead MSOP package. The device oper-
ates with a positive supply voltage, and a
positive control voltage. Unique features
include a high dynamic attenuation range,
and excellent power handling performance
through all attenuation states. The
HMC173MS8 is ideal for operation in wire-
less applications between 800 MHz and
1600 MHz. 1.7 to 2.0 GHz operation is
possible, with a reduced maximum attenu-
ation of 30 dB and increased VSWR. The
HMC173MS8 can be used with an exter-
nal driver circuit for improved linearity of
attenuation.
Min
800-1000 MHz
1000-1600 MHz
1600-2000 MHz
800-1000 MHz
1000-1600 MHz
1600-2000 MHz
800-1000 MHz
1000-1600 MHz
800-1000 MHz
1000-1600 MHz
1600-2000 MHz
Min Atten.
Atten.>2.0
Min Atten.
Atten.>2.0
Min Atten.
Atten.>2.0
800-2000 MHz
21
10
30
15
45
27
25
GaAs MMIC VOLTAGE VARIABLE ATTENUATOR 800-2000 MHz
F
EBRUARY
2001
Features
SINGLE POSITIVE VOLTAGE CONTROL: 0 to +3V
HIGH ATTENUATION RANGE: >50 dB @ 0.9 GHz
2
SMT A
TTENUATORS
HIGH P1dB COMPRESSION POINT: +16 dBm
ULTRA SMALL PACKAGE: MSOP
Guaranteed Performance
V
dd
= +4.0 Vdc, 50 Ohm System, -40 to +85°C
Parameter
Insertion Loss (Min. Atten.)
(V
CTL
= 0.0 Vdc)
Attenuation Range
(V
CTL
= 0 to +3 V)
Flatness
(Peak to Peak)
Return Loss
(V
CTL
= 0 to +3 V)
Input Power for 0.1 dB Compression
(825 MHz)
Input Power for 1.0 dB Compression
(825 MHz)
Input Third Order Intercept
825 MHz, two tones @ +5.0 dBm
Switching Characteristics
t
RISE
, t
FALL
(10/90% RF)
t
ON
, t
OFF
(50% CTL to 10/90% RF)
Typical
1.8
2.6
3.2
52
32
30
± 0.15
± 0.25
12
8
7
19
9
25
16
37
21
1.0
1.2
Max
2.3
3.1
3.7
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
µS
µS
6
5
5
12 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Web Site: www.hittite.com
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HITTITE [ HITTITE MICROWAVE CORPORATION ]
