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SWITCHES - SMT
9
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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
HMC253QS24 / 253QS24E
GaAs MMIC SP8T NON-REFLECTIVE
SWITCH, DC - 2.5 GHz
v04.0805
General Description
Features
Functional Diagram
Low Insertion Loss (2 GHz): 1.3dB
Single Positive Supply: Vdd = +5V
Integrated 3:8 TTL Decoder
24 Lead QSOP Package
Electrical Speci cations,
TA = +25° C, For TTL Control and Vdd = +5V in a 50 Ohm system
Typical Applications
The HMC253QS24 / HMC253QS24E is ideal for
DC - 2.5 GHz applications:
• CATV/DBS
• CDMA
• Cellular/PCS
The HMC253QS24 & HMC253QS24E are low-cost
non-re ective 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 con gurations of SP4T and SPDT MMIC
switches.
Parameter Frequency Min. Typ. Max. Units
Insertion Loss
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
Isolation
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
32
26
24
36
30
28
dB
dB
dB
Return Loss “On State”
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
14
9
6
18
12
8
dB
dB
dB
Return Loss (RF1-8) “Off State” 0.3 - 2.5 GHz
0.5 - 2.5 GHz
7
10
10
13
dB
dB
Input Power for 1 dB Compression 0.3 - 2.5 GHz 20 23 dBm
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone) 0.3 - 2.5 GHz 40 43 dBm
Switching Characteristics 0.3 - 2.5 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
30
100
ns
ns
SWITCHES - SMT
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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
Return Loss
Insertion Loss Isolation
TTL/CMOS Control Voltages
Bias Voltage & Current
Vdd Range = +5.0 Vdc ± 10%
Vdd
(Vdc)
Idd (Typ.)
(mA)
Idd (Max.)
(mA)
+5.0 6.0 9.0
State Bias Condition
Low 0 to +0.8 Vdc @ 5 uA Typ.
High +2.0 to +5.0 Vdc @ 70 uA Typ.
Truth Table
Control Input Signal Path State
ABC RFCOM to:
Low Low Low RF1
High Low Low RF2
Low High Low RF3
High High Low RF4
Low Low High RF5
High Low High RF6
Low High High RF7
High High High RF8
NOTE:
DC Blocking capacitors are required at ports RFC and RF1, 2, 3, 4, 5, 6, 7, 8.
HMC253QS24 / 253QS24E
GaAs MMIC SP8T NON-REFLECTIVE
SWITCH, DC - 2.5 GHz
v04.0805
-3
-2.5
-2
-1.5
-1
-0.5
0
0123
+25 C
+85 C
-40 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
0123
RFC
RFC 1-6 On
RFC 1-6 Off
RETURN LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
0123
ISOLATION (dB)
FREQUENCY (GHz)
RF6, RF3
RF1, RF2, RF4, RF5, RF7, RF8
SWITCHES - SMT
9
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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
Absolute Maximum Ratings
Outline Drawing
Bias Voltage Range (Port Vdd) +7.0 Vdc
Control Voltage Range (A, B, C) -0.5V to Vdd +1Vdc
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
Maximum Input Power
Vdd = +5V
+20 dBm (0.05 - 0.5 GHz)
+24 dBm (0.5 - 2.5 GHz)
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
HMC253QS24 / 253QS24E
GaAs MMIC SP8T NON-REFLECTIVE
SWITCH, DC - 2.5 GHz
v04.0805
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS].
3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
5. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
Part Number Package Body Material Leadframe Plating MSL Rating Package Marking [3]
HMC253QS24 Low Stress Injection Molded Plastic Silica
and Silicon Impregnated Sn/Pb Solder MSL1 [1] HMC253
XXXX
HMC253QS24E RoHS-compliant Low Stress Injection Molded
Plastic Silica and Silicon Impregnated 100% Matte Tin MSL1 [2] HMC253
XXXX
[1] Max peak re ow temperature of 235 °C
[2] Max peak re ow temperature of 260 °C
[3] 4-Digit lot number XXXX
Package Information
SWITCHES - SMT
9
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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
Evaluation Circuit Board
The circuit board used in the nal application should
be generated with proper RF circuit design tech-
niques. Signal lines at the RF ports should have 50
ohm impedance while the package ground leads
should be connected directly to the ground plane
similar to that shown above. A sufficient number of
via holes should be used to connect the top and
bottom ground planes. The evaluation circuit board
shown above is available from Hittite Microwave
Corporation upon request.
Item Description
J1 - J9 PCB Mount SMA Connector
J10 - J14 DC Pin
C1 - C9 100 pF Capacitor, 0402 Pkg.
C10 0.01 uF Capacitor, 0603 Pkg.
U1 HMC253QS24 / HMC253QS24E
SP8T Switch
PCB [2] 103704 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC253QS24 / 253QS24E
GaAs MMIC SP8T NON-REFLECTIVE
SWITCH, DC - 2.5 GHz
v04.0805
List of Materials for Evaluation PCB 103706 [1]
