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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
HMC245QS16
/
245QS16E
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
v02.0805
General Description
Features
Functional Diagram
The HMC245QS16 & HMC245QS16E are low cost
non-reflective SP3T switches in 16-lead QSOP sur-
face mount packages. Covering DC to 3.5 GHz, the
switch offers 30 to 40 dB isolation and a low insertion
loss of 0.5 dB. A 2:3 TTL/CMOS compatible decoder
is integrated on the switch requiring only 2 control
lines and a single +5V bias to select each path, replac-
ing 6 control lines normally required by GaAs SP3T
switches.
Low Insertion Loss: 0.5 dB @ 2.0 GHz
Non-Reflective Design
Integrated 2:3 TTL Decoder
“All Off” Isolation State
Single Positive Suppy: Vdd = +5V
16 Lead QSOP SMT Package
Electrical Specifications,
T
A
= +25° C, For TTL Control and Vdd= +5V in a 50 Ohm System
Typical Applications
The HMC245QS16 / HMC245QS16E is ideal for:
Basestation Infrastructure
CATV / DBS
Wireless Local Loop
Test Equipment
Parameter
Frequency
Min.
Typ.
Max.
Units
Insertion Loss
DC - 2.0 GHz
DC - 3.0 GHz
DC - 3.5 GHz
0.5
0.6
0.7
0.8
0.9
1.0
dB
dB
dB
Isolation
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.5 GHz
40
35
31
26
44
39
35
30
dB
dB
dB
dB
Return Loss
“On State”
DC - 1.5 GHz
DC - 3.5 GHz
20
17
dB
dB
Return Loss RF1 - 3
“Off State”
0.3 - 3.5 GHz
0.5 - 3.5 GHz
12
15
dB
dB
Input Power for 1 dB Compression
0.3 - 2.5 GHz
0.3 - 3.5 GHz
23
22
26
25
dBm
Input Third Order Intercept
(Two-tone Input Power = +7 dBm each tone)
0.3 - 2.5 GHz
0.3 - 3.5 GHz
44
40
48
44
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
0.3 - 3.5 GHz
40
150
ns
ns
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