HMC347
v02.0404
MICROWAVE CORPORATION
GaAs MMIC SPDT NON-REFLECTIVE
SWITCH, DC - 20.0 GHz
Typical Applications
Features
This switch is suitable DC - 20 GHz applications:
High Isolation: >40 dB @ 20 GHz
Low Insertion Loss: 1.6 dB @ 20 GHz
Non-Reflective Design
• Fiber Optics
• Microwave Radio
• Military
Small Size: 0.8 mm x 1.3 mm x 0.1 mm
• Space
• VSAT
General Description
Functional Diagram
The HMC347 is a broadband non-reflective GaAs
MESFET SPDT MMIC chip. Covering DC to
20 GHz, the switch offers high isolation and low
insertion loss. The switch features over 50 dB
isolation at lower frequencies and over 40 dB at
higher frequencies due to the implementation of
on-chip via hole structures. The switch operates
using two negative control voltage logic lines of
-5/0V, requires no Vee and has no current con-
sumption. The switch operates down to DC. The
chip features coplanar I/Os that allow 100% RF
testing prior to delivery to the customer.
7
Electrical Specifications,TA = +25° C, With 0/-5V Control, 50 Ohm System
Parameter
Frequency
Min.
Typ.
1.7
45
Max.
2.2
Units
dB
Insertion Loss
Isolation
DC - 20.0 GHz
DC - 20.0 GHz
DC - 20.0 GHz
DC - 20.0 GHz
0.5 - 20.0 GHz
0.5 - 20.0 GHz
40
10
8
dB
Return Loss
“On State”
“On State”
13
dB
Return Loss RF1, RF2
10
dB
Input Power for 1 dB Compression
Input Third Order Intercept
19
38
23
dBm
dBm
43
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 20.0 GHz
3
6
ns
ns
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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