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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
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 Specifications,
T
A
= +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-refl ective SP4T switches in low cost lead-
less surface mount packages. Covering DC - 4.0
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 compatibil-
ity. 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 - 4.0 GHz
v01.0905
HMC241LP3
/
241LP3E
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14 - 121
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 - 4.0 GHz
v01.0905
HMC241LP3
/
241LP3E
-5
-4
-3
-2
-1
0
0
1
2
3
4
5
6
+25 C
+85 C
-40 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
0
1
2
3
4
5
6
RF1
RF2
RF3
RF4
ISOLATION (dB)
FREQUENCY (GHz)
-35
-30
-25
-20
-15
-10
-5
0
0
1
2
3
4
5
6
RFC
RF1-4 ON
RF1-4 OFF
RETURN LOSS (dB)
FREQUENCY (GHz)
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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
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 4.0 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 refl ow temperature of 235 C
[2] Max peak refl 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.
14
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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
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 4.0 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.
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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 PCB
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 4.0 GHz
v01.0905
HMC241LP3
/
241LP3E
The circuit board used in the fi 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 evalua-
tion 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
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