SWITCHES - SMT
10
10 - 172
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
HMC321LP4 / 321LP4E
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC* - 8 GHz
v03.0805
General Description
Features
Functional Diagram
The HMC321LP4 & HMC321LP4E are broadband non-
re ective GaAs MESFET SP8T switches in low cost
leadless surface mount packages. Covering DC to
8 GHz, this switch offers high isolation and low inser-
tion loss. This switch also includes an on board binary
decoder circuit which reduces the required logic con-
trol lines to three. The switch operates using a positive
control voltage of 0/+5 volts, and requires a xed bias
of +5v. This switch is suitable for usage in 50-Ohm or
75-Ohm systems.
Broadband Performance: DC - 8 GHz
High Isolation: >30 dB@ 6 GHz
Low Insertion Loss: 2.5 dB@ 6 GHz
Integrated Positve Supply 3:8 TTL Decoder
4x4 mm SMT Package
Electrical Speci cations, TA = +25° C, With 0/+5V Control, 50 Ohm System
Typical Applications
This switch is suitable for usage in DC - 8.0 GHz 50-
Ohm or 75-Ohm systems:
• Broadband
• Fiber Optics
• Switched Filter Banks
• Wireless below 8 GHz
* DC blocking capacitors are required at ports RFC and
RF1, 2, 3, 4, 5, 6, 7, 8. Their value will determine the lowest
transmission frequency.
Parameter Frequency Min. Typ. Max. Units
Insertion Loss
DC - 2.0 GHz
DC - 4.0 GHz
DC - 8.0 GHz
2.3
2.5
2.7
2.7
2.9
3.1
dB
dB
dB
Isolation
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
35
30
25
20
40
35
30
25
dB
dB
dB
dB
Return Loss “On State” DC - 4.0 GHz
DC - 8.0 GHz
8
7
12
10
dB
dB
Return Loss (RF1 - RF8) “Off State” 2.0 - 8.0 GHz 7 12 dB
Input Power for 1 dB Compression 0.5 - 8.0 GHz 19 23 dBm
Input Third Order Intercept
(Two-tone Input Power = +7 dBm Each Tone, 1 MHz Spacing) 0.5 - 8.0 GHz 33 40 dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 8.0 GHz 50
150
ns
ns
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
OBSOLETE
SWITCHES - SMT
10
10 - 173
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
Input Third Order Intercept Point
Return Loss 0.1 and 1 dB Input Compression Point
Insertion Loss vs. Temperature Isolation
HMC321LP4 / 321LP4E
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC* - 8 GHz
v03.0805
-5
-4
-3
-2
-1
0
0123456789
+25 C
-40 C
+85 C
INSERTION LOSS (dB)
FREQUENCY (GHz)
30
35
40
45
50
12345678
INPUT THIRD ORDER INTERCEPT (dBm)
FREQUENCY (GHz)
10
15
20
25
30
12345678
0.1db Compression Point
1dB Compression Point
INPUT COMPRESSION POINT (dBm)
FREQUENCY (GHz)
-25
-20
-15
-10
-5
0
0123456789
RFC
RF1-8 ON
RF1-8 OFF
RETURN LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
0123456789
RF1
RF2
RF3
RF4
RF5
RF6
RF7
RF8
ISOLATION (dB)
FREQUENCY (GHz)
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
OBSOLETE
SWITCHES - SMT
10
10 - 174
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
Truth TableBias Voltage & Current
Control Voltages
Note:
DC blocking capacitors are required at ports RFC and
RF1, 2, 3, 4, 5, 6, 7, 8. Their value will determine the lowest
transmission frequency.
Vdd Range = +5.0 Vdc ± 10%
Vdd
(Vdc)
Idd (Typ.)
(mA)
Idd (Max.)
(mA)
+5.0 5.0 9.0
State Bias Condition
Low 0 to +0.8 Vdc @ 5 uA Typical
High +2.0 to +5.0 Vdc @ 25 uA Typical
Control Input Signal Path State
AB C 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
HMC321LP4 / 321LP4E
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC* - 8 GHz
v03.0805
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
OBSOLETE
SWITCHES - SMT
10
10 - 175
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 +1.0 Vdc
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
Maximum Input Power Vdd = +5V +26 dBm
ESD Sensitivity (HBM) Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
HMC321LP4 / 321LP4E
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC* - 8 GHz
v03.0805
NOTES:
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 GROUND LEADS AND GROUND PADDLE MUST BE
SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED
LAND PATTERN.
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC321LP4 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H321
XXXX
HMC321LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H321
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
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
OBSOLETE
SWITCHES - SMT
10
10 - 176
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
Pin Number Function Description Interface Schematic
1, 3, 5, 7,
12, 14, 16,
18, 21, 23
GND Package bottom has exposed metal paddle that
must also be connected to PCB RF ground.
2, 4, 6,
13, 15, 17,
19, 22, 24
RF1 - RF8
& RFC
This pin is DC coupled and matched to 50 Ohm.
Blocking capacitors are required.
8 VDD Supply Voltage +5V ± 10%
9 CTLC See truth table and control voltage table.
10 CTLB See truth table and control voltage table.
11 CTLA See truth table and control voltage table.
20 N/C This pin should be connected to PCB RF
ground to maximize isolation.
Pin Descriptions
HMC321LP4 / 321LP4E
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC* - 8 GHz
v03.0805
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
OBSOLETE
SWITCHES - SMT
10
10 - 177
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
and backside ground slug should be connected
directly to the ground plane similar to that shown
above. The evaluation circuit board shown above is
available from Hittite Microwave Corporation upon
request.
Item Description
J1 - J9 PCB Mount SMA RF Connector
J10 - J14 DC Pin
C1 - C9 100 pF Capacitor, 0402 Pkg.
U1 HMC321LP4 / HMC321LP4E
SP8T Switch
PCB [2] 104687 Evaluation PCB 1.73” x 1.46”
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC321LP4 / 321LP4E
GaAs MMIC SP8T NON-REFLECTIVE
POSITIVE CONTROL SWITCH, DC* - 8 GHz
v03.0805
List of Materials for Evaluation PCB 104769 [1]
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
OBSOLETE
