HMC234C8
v03.1105
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8.0 GHz
Typical Applications
The HMC234C8 is ideal for:
• Telecom Infrastructure
Features
Isolation: 52 dB @ 2.0 GHz
40 dB @ 6.0 GHz
Insertion Loss: 1.6 dB Typical @ 6.0 GHz
Non-Reflective Design
• Microwave Radio & VSAT
• Military Radios, Radar & ECM
• Test Instrumentation
Surface Mount Ceramic Package
8
Functional Diagram
General Description
The HMC234C8 is a broadband high isolation non-
reflective GaAs MESFET SPDT switch in a non-
hermetic surface mount ceramic package. Covering
DC to 8.0 GHz, the switch features >52 dB isolation
up to 2 GHz and >38 dB isolation up to 8.0 GHz.
The switch operates using complementary negative
control voltage logic lines of -5/0V and requires no
bias supply. This product is an excellent pin-for-pin
replacement to the SMDI SSW124.
Electrical Specifications, TA = +25° C, With 0/-5V Control, 50 Ohm System
Parameter
Frequency
Min.
Typ.
Max.
Units
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
1.4
1.6
2.1
1.7
1.9
2.4
dB
dB
dB
Insertion Loss
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
47
35
33
52
40
38
dB
dB
dB
Isolation
DC - 2.0 GHz
DC - 8.0 GHz
15
12
dB
dB
Return Loss
“On State”
“Off State”
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
14
9
6
dB
dB
dB
Return Loss RF1, RF2
Input Power for 1 dB Compression
Input Third Order Intercept
0.5 - 8.0 GHz
0.5 - 8.0 GHz
22
40
26
46
dBm
dBm
(Two-Tone Input Power= +7 dBm Each Tone, 1 MHz Tone Separation)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 8.0 GHz
3
5
ns
ns
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
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