HMC245QS16
v01.0404
MICROWAVE CORPORATION
GaAs MMIC SP3T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Typical Applications
The HMC245QS16 is ideal for:
• Basestation Infrastructure
• CATV / DBS
Features
Low Insertion Loss: 0.5 dB @ 2.0 GHz
Non-Reflective Design
Integrated 2:3 TTL Decoder
“All Off” Isolation State
• Wireless Local Loop
• Test Equipment
Single Positive Suppy: Vdd = +5V
16 Lead QSOP SMT Package
General Description
Functional Diagram
The HMC245QS16 is a low cost non-reflective SP3T
switch in a 16-lead QSOP surface mount package.
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, replacing 6 control lines normally
required by GaAs SP3T switches.
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Electrical Specifications,
TA = +25° C, For TTL Control and Vdd= +5V in a 50 Ohm System
Parameter
Frequency
Min.
Typ.
Max.
Units
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
Insertion Loss
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
Isolation
DC - 1.5 GHz
DC - 3.5 GHz
20
17
dB
dB
Return Loss
“On State”
“Off State”
0.3 - 3.5 GHz
0.5 - 3.5 GHz
12
15
dB
dB
Return Loss RF1 - 3
0.3 - 2.5 GHz
0.3 - 3.5 GHz
23
22
26
25
Input Power for 1 dB Compression
Input Third Order Intercept
dBm
dBm
0.3 - 2.5 GHz
0.3 - 3.5 GHz
44
40
48
44
(Two-tone Input Power = +7 dBm each tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
0.3 - 3.5 GHz
40
150
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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