MICROWAVE CORPORATION
14 - 124
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
SWITCHES - SMT
14
HMC241QS16
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
v03.0404
General Description
Features
Functional Diagram
Low Insertion Loss (2 GHz): 0.5 dB
Single Positive Supply: Vdd = +5V
Integrated 2:4 TTL Decoder
16 Lead QSOP Package
Electrical Specifi cations,
T
A
= +25 C, For TTL Control and Vdd = +5V in a 50 Ohm System
Typical Applications
The HMC241QS16 is ideal for:
Base Stations & Portable Wireless
CATV / DBS
Wireless Local Loop
Test Equipment
The HMC241QS16 is a low-cost non-refl ective
SP4T switch in a 16-lead QSOP package. Cover-
ing DC - 3.5 GHz, this switch offers high isolation
and has a low insertion loss of 0.5 dB at 2 GHz.
The switch offers a single positive bias and true
TTL/CMOS compatibility. A 2:4 decoder is inte-
grated on the switch requiring only 2 control lines
and a positive bias to select each path, replacing
8 control lines normally required by GaAs SP4T
switches.
Parameter
Frequency
Min.
Typ.
Max.
Units
Insertion Loss
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.5 GHz
0.5
0.5
0.6
1.0
0.8
0.8
0.9
1.5
dB
dB
dB
dB
Isolation
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 3.5 GHz
40
32
28
23
45
36
32
26
dB
dB
dB
dB
Return Loss
"On State"
DC - 2.5 GHz
DC - 3.5 GHz
17
9
21
12
dB
dB
Return Loss
RF1-4 "Off State"
0.3 - 3.5 GHz
0.5 - 2.5 GHz
8
12
12
16
dB
dB
Input Power for 1dB Compression
0.3 - 3.5 GHz
22
25
dBm
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
0.3 - 3.5 GHz
40
44
dBm
Switching Characteristics
0.3 - 3.5 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
40
150
ns
ns
MICROWAVE CORPORATION
14 - 125
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
14
SWITCHES - SMT
HMC241QS16
-3
-2.5
-2
-1.5
-1
-0.5
0
0
1
2
3
4
INSERTION LOSS (dB)
FREQUENCY (GHz)
-40 C
+25 C
+85 C
-70
-60
-50
-40
-30
-20
-10
0
0
1
2
3
4
ISOLATION (dB)
FREQUENCY (GHz)
RF3
RF2
RF1
RF4
-30
-25
-20
-15
-10
-5
0
0
1
2
3
4
RETURN LOSS (dB)
FREQUENCY (GHz)
RF1-4 "On"
RF1-4 "Off"
RFC
Return Loss
Insertion Loss
Isolation
v03.0404
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Bias Voltage & Current
TTL/CMOS Control Voltages
Vdd Range = +5.0 Vdc 10%
Vdd
(Vdc)
Idd (Typ.)
(mA)
Idd (Max.)
(mA)
+5.0
4.0
7.0
State
Bias Condition
Low
0 to +0.8 Vdc @ 5uA Typ.
High
+2.0 to +5.0 Vdc @ 70 uA Typ.
Truth Table
NOTE:
DC Blocking capacitors are required at ports RFC and
RF1, 2, 3, 4.
Control Input
Signal Path State
A
B
RFCOM to:
LOW
LOW
RF1
HIGH
LOW
RF2
LOW
HIGH
RF3
HIGH
HIGH
RF4
MICROWAVE CORPORATION
14 - 126
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
SWITCHES - SMT
14
HMC241QS16
v03.0404
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Absolute Maximum Ratings
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEADFRAME MATERIAL: COPPER ALLOY
3. LEADFRAME PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
7. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
Bias Voltage Range (Port Vdd)
+7.0 Vdc
Control Voltage Range (A & B)
-0.5V to Vdd +1 Vdc
Channel Temperature
150 C
Thermal Resistance
(Insertion Loss Path)
210 C/W
Thermal Resistance
(Terminated Path)
250 C/W
Storage Temperature
-65 to +150 C
Operating Temperature
-40 to +85 C
Maximum Input Power
Vdd = +5 Vdc
+20 dBm (0.05 - 0.5 GHz)
+27 dBm (0.5 - 3.5 GHz)
MICROWAVE CORPORATION
14 - 127
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
14
SWITCHES - SMT
HMC241QS16
v03.0404
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
Evaluation PCB
The circuit board used in the fi
nal application
should be generated with proper RF circuit design
techniques. Signal lines at the RF port should
have 50 ohm impedance and the package ground
leads should be connected directly to the ground
plane similar to that shown above. The evalua-
tion circuit board shown above is available from
Hittite Microwave Corporation upon request.
List of Material
Item
Description
J1 - J5
PC Mount SMA RF Connector
J6 - J9
DC Pin
C1 - C5
330 pF capacitor, 0402 Pkg.
U1
HMC241QS16 SP4T Switch
PCB*
102809 Evaluation PCB
* Circuit Board Material: Rogers 4350
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