HMC253QS24 / 253QS24E
v04.0805
GaAs MMIC SP8T NON-REFLECTIVE
SWITCH, DC - 2.5 GHz
Typical Applications
Features
The HMC253QS24 / HMC253QS24E is ideal for
DC - 2.5 GHz applications:
Low Insertion Loss (2 GHz): 1.3dB
Single Positive Supply: Vdd = +5V
Integrated 3:8 TTL Decoder
24 Lead QSOP Package
• CATV/DBS
• CDMA
• Cellular/PCS
8
Functional Diagram
General Description
The HMC253QS24 & HMC253QS24E are low-cost
non-reflective SP8T switches in 24-lead QSOP
packages featuring wideband operation from DC
to 2.5 GHz. The switch offers a single positive bias
and true TTL/CMOS compatibility. A 3:8 decoder
is integrated on the switch requiring only 3 control
lines and a positive bias to select each path. The
HMC253QS24 & HMC253QS24E SP8T will replace
multiple configurations of SP4T and SPDT MMIC
switches.
Electrical Specifications,
TA = +25° C, For TTL Control and Vdd = +5V in a 50 Ohm system
Parameter
Frequency
Min.
Typ.
Max.
Units
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
1.1
1.3
1.8
1.5
1.7
2.4
dB
dB
dB
Insertion Loss
Isolation
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
32
26
24
36
30
28
dB
dB
dB
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
14
9
6
18
12
8
dB
dB
dB
Return Loss
“On State”
“Off State”
0.3 - 2.5 GHz
0.5 - 2.5 GHz
7
10
10
13
dB
dB
Return Loss (RF1-8)
Input Power for 1 dB Compression
0.3 - 2.5 GHz
0.3 - 2.5 GHz
0.3 - 2.5 GHz
20
40
23
43
dBm
dBm
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
30
100
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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