SWITCHES - SMT
10
10 - 114
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
General Description
Features
Functional Diagram
RoHS Compliant Product
Low Insertion Loss (2 GHz): 0.5 dB
Single Positive Supply: Vdd = +5V
Integrated 2:4 TTL Decoder
16 Lead QSOP Package
Electrical Speci cations, TA = +25° C, For TTL Control and Vdd = +5V in a 50 Ohm System
Typical Applications
The HMC241QS16 & HMC241QS16E are ideal for:
• Base Stations & Portable Wireless
• CATV / DBS
• Wireless Local Loop
• Test Equipment
The HMC241QS16 & HMC241QS16E are general
purpose low-cost non-re ective SP4T switches in
16-lead QSOP packages. Covering 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 integrated 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
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
v04.0404
HMC241QS16 / 241QS16E
SWITCHES - SMT
10
10 - 115
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
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
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
v04.0404
HMC241QS16 / 241QS16E
-3
-2.5
-2
-1.5
-1
-0.5
0
01234
+25 C
+85 C
-40 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
01234
RFC
RF1-4 "On"
RF1-4 "Off"
RETURN LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
01234
RF1
RF2
RF3
RF4
ISOLATION (dB)
FREQUENCY (GHz)
SWITCHES - SMT
10
10 - 116
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) -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)
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
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]
HMC241QS16 Low Stress Injection Molded Plastic Silica
and Silicon Impregnated Sn/Pb Solder MSL1 [1] HMC241
XXXX
HMC241QS16E RoHS-compliant Low Stress Injection Molded
Plastic Silica and Silicon Impregnated 100% Matte Tin MSL1 [2] HMC241
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
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
v04.0404
HMC241QS16 / 241QS16E
SWITCHES - SMT
10
10 - 117
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 PCB
The circuit board used in the  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 Materials for Evaluation PCB 102913 [1]
Item Description
J1 - J5 PCB Mount SMA RF Connector
J6 - J9 DC Pin
C1 - C5 330 pF capacitor, 0402 Pkg.
U1 HMC241QS16 / HMC241QS16E SP4T Switch
PCB [2] 102809 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 3.5 GHz
v04.0404
HMC241QS16 / 241QS16E