鈥?/div>
VSAT
Functional Diagram
General Description
The HMC347 is a broadband non-re鏗俥ctive 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
SWITCHES - CHIP
Electrical Speci鏗乧ations,
T
A
= +25擄 C, With 0/-5V Control, 50 Ohm System
Parameter
Insertion Loss
Isolation
Return Loss
Return Loss RF1, RF2
Input Power for 1 dB Compression
Input Third Order Intercept
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
鈥淥n State鈥?/div>
鈥淥n State鈥?/div>
Frequency
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
19
38
Min.
Typ.
1.7
45
13
10
23
43
Max.
2.2
Units
dB
dB
dB
dB
dBm
dBm
DC - 20.0 GHz
3
6
ns
ns
7 - 26
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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