HMC347G8
v02.0605
GaAs MMIC HERMETIC SMT SPDT
SWITCH, DC - 8 GHz
Typical Applications
The HMC347G8 is ideal for:
• Telecom Infrastructure
Features
Isolation: 42 dB @ 2.5 GHz
30 dB @ 6 GHz
Insertion Loss: 2 dB @ 6 GHz
Non-Reflective Design
• Microwave Radio & VSAT
• Military Radios, Radar & ECM
• Test Instrumentation
8 Lead Hermetic SMT Package
General Description
Functional Diagram
10
The HMC347G8 is a broadband high isolation non-
reflective GaAs MESFET SPDT switch in a 8 lead
glass/metal (hermetic) surface mount package.
Covering DC to 8 GHz, the switch features >42 dB
isolation up to 2 GHz and >25 dB isolation up to 8
GHz. The switch operates using complementary
negative control voltage logic lines of -5/0V and
requires no bias supply. This SPDT is a good
replacement for the HMC132G7 SPDT.
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
2.0
2.2
2.2
2.3
2.6
2.7
dB
dB
dB
Insertion Loss
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
39
25
22
43
28
25
dB
dB
dB
Isolation
DC - 2.0 GHz
DC - 8.0 GHz
9
6
12
10
dB
dB
Return Loss
“On State”
“Off State”
DC - 2.0 GHz
DC - 8.0 GHz
9
6
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
19
38
23
43
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
6
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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