'99
new!
MICROWAVE CORPORATION
GaAS MMIC SP8T SWITCH NON-REFLECTIVE DC T O 2.0 GHz
HMC183QS24
7
FEBRUARY 2001
Features
LOW INSERTION LOSS (1 GHz): 0.8 dB
General Description
The HMC183QS24 is a low-cost non-reflective
SP8T switch in a 24-lead QSOP package for
INTEGRATED 3:8 DECODER
24 LEAD QSOP PACKAGE
use in antenna diversity, switched filter banks,
gain/attenuation selection, and general channel
multiplexing applications. A 3:8 decoder is integrated on the switch, requiring only 3 control
lines with a negative bias to select an RF path.
The 3:8 decoder replaces 16 control lines normally required by GaAS SP8T switches. Switch
outputs are terminated when "off". The QSOP24
package occupies the same area as a 14-lead
SOIC. See positive bias/TTlL version
HMC253QS24.
Guaranteed Performance
For 0/-5V Control and Vee = -5V in a 50 Ohm system, -40 to +85 deg C
V01.0101
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SP8T
SMT
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
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62
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01
7
21
01
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03
73
8.0
0.1
3.1
24
63
33
03
02
41
11
51
31
31
81
02
53
24
53
05
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5.1
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7 - 40
Bd
Bd
Bd
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MICROWAVE CORPORATION
GaAS MMIC SP8T SWITCH NON-REFLECTIVE DC T O 2.0 GHz
new!
HMC183QS24
'99
V01.0101
FEBRUARY 2001
Insertion Loss Isolation
0
-0.5
-1
-1.5
-2
INSERTION LOSS (dB)
-2.5
-3
0 0.5 1 1.5 2 2.5 3
+25 C
FREQUENCY (GHz)
+85 C
-40 C
0
-10
-20
-30
-40
ISOLATION (dB)
-50
-60
0 0.5 1 1.5 2 2.5 3
FREQUENCY (GHz)
Return Loss Isolation Between Several RF I / Os
-10
-15
0
-5
S22 "Off"
S11 RFC
-20
RF5-4
RF7-6
-30
RF8-7
-40
7
-20
RETURN LOSS (dB)
-25
-30
0 0.5 1 1.5 2 2.5 3
S22 "On"
FREQUENCY (GHz)
ISOLATION (dB)
-50
RF3-2
RF4-3
-60
0 0.5 1 1.5 2 2.5 3
FREQUENCY (GHz)
RF2-1
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
7 - 41
SWITCHES
SP8T
SMT