SWITCHES - SMT
10
10 - 108
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
High Isolation: 43 dB @ 2 GHz
Low Insertion Loss: 0.7 dB @ 2 GHz
Single Positive Supply: Vdd = +5V
Integrated 2:4 TTL Decoder
3x3 mm SMT Package
Electrical Speci cations, TA = +25° C, For TTL Control and Vdd = +5V in a 50 Ohm System
Typical Applications
The HMC241LP3 / HMC241LP3E is ideal for:
• Base Stations & Repeaters
• WLAN, WiMAX & WiBro
• CATV / DBS
• Test Equipment
The HMC241LP3 & HMC241LP3E are general pur-
pose non-re ective SP4T switches in low cost lead-
less surface mount packages. Covering DC - 4 GHz,
this switch offers high isolation and has a low insertion
loss of 0.7 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 4 to 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 - 4.0 GHz
0.6
0.7
0.9
1.2
0.9
1.0
1.2
1.5
dB
dB
dB
dB
Isolation
DC - 1.0 GHz
DC - 2.0 GHz
DC - 2.5 GHz
DC - 4.0 GHz
40
38
35
25
45
43
40
30
dB
dB
dB
dB
Return Loss “On State” DC - 2.5 GHz
DC - 4.0 GHz
18
12
dB
dB
Return Loss RF1-4 “Off State” 0.3 - 4.0 GHz 12 dB
Input Power for 1dB Compression 0.3 - 4.0 GHz 26 dBm
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone) 0.3 - 4.0 GHz 45 dBm
Switching Characteristics 0.3 - 4.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
40
100
ns
ns
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 4 GHz
v01.0905
HMC241LP3 / 241LP3E
SWITCHES - SMT
10
10 - 109
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 2.7 5.0
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 RFC to:
LOW LOW RF1
HIGH LOW RF2
LOW HIGH RF3
HIGH HIGH RF4
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 4 GHz
v01.0905
HMC241LP3 / 241LP3E
-5
-4
-3
-2
-1
0
0123456
+25 C
+85 C
-40 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
0123456
RF1
RF2
RF3
RF4
ISOLATION (dB)
FREQUENCY (GHz)
-35
-30
-25
-20
-15
-10
-5
0
0123456
RFC
RF1-4 ON
RF1-4 OFF
RETURN LOSS (dB)
FREQUENCY (GHz)
SWITCHES - SMT
10
10 - 110
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
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 4 GHz
v01.0905
HMC241LP3 / 241LP3E
Absolute Maximum Ratings
Bias Voltage Range (Vdd) +7.0 Vdc
Control Voltage Range (A & B) -0.5V to Vdd +1 Vdc
Channel Temperature 150 °C
Thermal Resistance
(Insertion Loss Path) 200 °C/W
Thermal Resistance
(Terminated Path) 240 °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 - 4.0 GHz)
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Part Number Package Body Material Leadframe Plating MSL Rating Package Marking [3]
HMC241LP3 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] 241
XXXX
HMC241LP3E RoHS-compliant Low Stress
Injection Molded Plastic 100% Matte Tin MSL1 [2] 241
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
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL N/C LEADS, GROUND LEADS AND GROUND PADDLE MUST
BE SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED
LAND PATTERN.
SWITCHES - SMT
10
10 - 111
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
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 4 GHz
v01.0905
HMC241LP3 / 241LP3E
Pin Descriptions
Pin Number Function Description Interface Schematic
1, 4,
9, 12, 15
RF4, RF3,
RF2, RF1, RFC
This Pin is DC coupled and matched to 50 Ohm.
Blocking capacitors are required.
2, 3,
10, 11, 13 N/C This pin should be connected to PCB RF
ground to maximize isolation.
5, 14, 16 GND Package bottom has exposed metal paddle that must
also be connected to PCB RF ground.
6 Vdd Supply Voltage +5V ± 10%
7 B See truth table and control voltage table.
8 A See truth table and control voltage table.
SWITCHES - SMT
10
10 - 112
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 tech-
niques. Signal lines at the RF port should have 50
ohm impedance and the package ground leads and
package bottom should be connected directly to the
ground plane similar to that shown above. The eval-
uation circuit board shown above is available from
Hittite Microwave Corporation upon request.
List of Materials for Evaluation PCB 108333 [1]
Item Description
J1 - J7 PCB Mount SMA RF Connector
J8 - J11 DC Pin
C1 - C7 100 pF Capacitor, 0402 Pkg.
C8 10k pF Capacitor, 0603 Pkg.
U1 HMC241LP3 / HMC241LP3E SP4T Switch
PCB [2] 104708 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 4 GHz
v01.0905
HMC241LP3 / 241LP3E
SWITCHES - SMT
10
10 - 113
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
Notes:
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 4 GHz
v01.0905
HMC241LP3 / 241LP3E
