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SPDT SWITCH. HMC239S8 Datasheet |
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v01.0801
MICROWAVE CORPORATION
Typical Applications
The HMC239S8 is ideal for:
• MMDS & WirelessLAN
• Basestation Infrastructure
• Portable Wireless
Functional Diagram
14
HMC239S8
GaAs MMIC SPDT SWITCH
DC - 2.5 GHz
Features
Low Insertion Loss: 0.4 dB
High Isolation: 35 dB
Fast Switching Speed: 2ns
High Input IP3: +50 dBm
General Description
The HMC239S8 is a low-cost GaAs MMIC SPDT
switch in an 8-lead SOIC package. The switch
can control signals from DC to 2.5 GHz. It is
especially suited for low or medium power appli-
cations which require extremely fast switching
with minimal insertion loss. The two control volt-
ages require a minimal amount of DC current
which is optimal for battery powered radio sys-
tems. RF1 and RF2 are reflective shorts when
“Off”.
Electrical Specifications, T = +25° C, Vctl = 0/-5V, 50 Ohm System
A
Parameter
Frequency
Min. Typ.
Insertion Loss
DC - 0.1 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
0.4
0.4
0.5
0.6
0.7
Isolation
DC - 0.5 GHz 33 36
DC - 1.0 GHz 26 29
DC - 2.0 GHz 18 21
DC - 2.5 GHz 14 17
Return Loss
DC - 1.0 GHz 18 21
DC - 2.0 GHz 17 21
DC - 2.5 GHz 15 20
Input Power for 1dB Compression
0/-5V Control
0.5 - 1.0 GHz
0.5 - 2.5 GHz
25
23
29
27
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
0/-5V Control
0.5 - 1.0 GHz
0.5 - 2.5 GHz
45
44
50
49
Switching Characteristics
DC - 2.5 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
2
10
Max.
0.6
0.6
0.7
0.8
1.0
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
ns
ns
14 - 118
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
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v01.0801
MICROWAVE CORPORATION
HMC239S8
GaAs MMIC SPDT SWITCH
DC - 2.5 GHz
Insertion Loss
0
-0.5
-1
-1.5
-2
-2.5
-3
0
12
FREQUENCY (GHz)
Isolation
0
-10
-20
RF1
-30
RF2
-40
-50
-60
3 012
FREQUENCY (GHz)
3
Return Loss
0
-10
-20
-30
-40
0
12
FREQUENCY (GHz)
3
Input 0.1 and 1.0 dB
Compression vs. Control Voltage
35
P1 dB at 900 MHz P1 dB at 1900 MHz
Input Third Order
Distortion vs. Control Voltage
55
900 MHz
30
50
25 P0.1 dB at 900 MHz
1900 MHz
20
-4
P0.1 dB at 1900 MHz
-5 -6 -7 -8
CONTROL VOLTAGE (Vdc)
-9
45
-4
-5 -6 -7 -8
CONTROL VOLTAGE (Vdc)
-9
14
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
14 - 119
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14
v01.0801
MICROWAVE CORPORATION
HMC239S8
GaAs MMIC SPDT SWITCH
DC - 2.5 GHz
Truth Table
*Control Input Voltage Tolerances are ± 0.2 Vdc.
Control Input*
A
(Vdc)
B
(Vdc)
-5 0
0 -5
-6 0
0 -6
-7 0
0 -7
-8 0
0 -8
Control Current
Ia Ib
(uA) (uA)
-25 10
10 -25
-75 30
30 -75
-130
60
60 -130
-190
80
80 -190
Signal Path State
RF to
RF1
RF to
RF2
ON OFF
OFF
ON
ON OFF
OFF
ON
ON OFF
OFF
OM
ON OFF
OFF
ON
Compression vs. Bias Voltage
Carrier at 900 MHz
Carrier at 1900 MHz
Control
Input
Input Power
for 0.1 dB
Compression
Input Power
for 1.0 dB
Compression
Input Power
for 0.1 dB
Compression
Input Power
for 1.0 dB
Compression
(Vdc)
(dBm)
(dBm)
(dBm)
(dBm)
-5 25 29 23 27
-6 27 31 26 29
-8 29 33 28 32
Caution: Do not operate in 1 dB compression at power levels above
+30 dBm and do not “hot switch” power levels greater than +20 dBm
(Vctl= -5 Vdc).
Distortion vs. Bias Voltage
Control
Input
Third Order Intercept (dBm)
+7 dBm Each Tone
(Vdc)
900 MHz
1900 MHz
-5 50
49
-8 53
51
14 - 120
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
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