Hittite HMC173MS8 Datasheet
MICROWAVE CORPORATION
HMC173MS8
GaAs MMIC VOLTAGE VARIABLE ATTENUATOR 800-2000 MHz
FEBRUARY 2001
2
ATTENUATORS
SMT
Features
SINGLE POSITIVE VOLTAGE CONTROL: 0 to +3V
HIGH ATTENUATION RANGE: >50 dB @ 0.9 GHz
HIGH P1dB COMPRESSION POINT: +16 dBm
ULTRA SMALL PACKAGE: MSOP
General Description
The HMC173MS8 is a miniature absorptive voltage variable attenuator in an 8lead MSOP package. The device operates 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 wireless applications between 800 MHz and
1600 MHz. 1.7 to 2.0 GHz operation is
possible, with a reduced maximum attenuation of 30 dB and increased VSWR. The
HMC173MS8 can be used with an external driver circuit for improved linearity of
attenuation.
Guaranteed Performance V
Parameter Min Typical Max Units
Insertion Loss (Min.Atten.)
(V
=0.0Vdc)
CTL
Attenuation Range
(V
=0to+3V)
CTL
Flatness
(Peak to Peak)
Return Loss
(V
=0to+3V)
CTL
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
SwitchingCharacteristics
t
RISE,tFALL
t
ON,tOFF
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
(10/90% R F )
(50% CTL to 10/90%RF )
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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 1.0
= +4.0 Vdc, 50 Ohm System, -40 to +85°C
dd
45
27
25
10
30
15
21
1.8
2.6
3.2
52
32
30
±0.15
±0.25
6
5
5
12
8
7
19
9
25
16
37
21
1.2
2.3
3.1
3.7
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
µS
µS
HMC173MS8
MICROWAVE CORPORATION
HMC173MS8 VOLTAGE VARIABLE ATTENUATOR 800-2000 MHz
FEBRUARY 2001
Attenuation vs. Control Voltage
@900 and 1900 MHz
0
-10
-20
-30
-40
ATTENUATION (dB)
-50
-60
0 0.5 1 1.5 2 2.5 3
CONTROL VOLTAGE (V)
825
1900 MHz
MHz
Attenuation vs. Temperature
Normalized to +25°C @825 MHz
10
8
6
4
2
0
-2
-4
-6
-8
NORMALIZED ATTENUATION (dB)
-10
0 0.5 1 1.5 2 2.5 3
CONTROL VOLTAGE (V)
-40C
+85C
Broadband Attenuation and
Insertion Loss
0
-10
-20
-30
-40
-50
ATTENUATION (dB)
-60
-70
0.6 0.8 1 1.2 1.4 1.6 1.8 2
FREQUENCY (GHz)
0
-1
-2
-3
-4
-5
INSERTION LOSS (dB)
-6
-7
Input IP3 vs. Control Voltage
@825 MHz
40
35
30
25
20
15
825 MHz INPUT IP3 (dBm)
10
0 0.5 1 1.5 2 2.5 3
+85C
CONTROL VOLTAGE (V)
-40C
+25C
Input P1dB Compression
@825 MHz
Input Power For 1 dB Compression Point
Test Condition
(825MHz)
Min.Attenuation 0.0 +4.0 26 24 25 dBm
Max.Attenuation +3.0 +4.0 16.5 15 23 dBm
Worst Case
P1dB @
Typical V
CTL
V
Vdd
CTL
(Vdc)
+1.8 +4.0 16.5 15.5 14 dBm
+25C +85C -40C Units
(Vdc)
Broadband Return Loss vs.
Control Voltage
0
-5
V
0
-10
2V
-15
RETURN LOSS (dB)
-20
0.6 0.8 1 1.2 1.4 1.6 1.8 2
FREQUENCY (GHz)
2.25V
3V
2
ATTENUATORS
SMT
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
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