For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
3 - 1
FILTERS - TUNABLE - SMT
3
HMC881LP5E
v01.0110
Functional Diagram
Typical Applications Features
General Description
FILTER - TUNABLE, LOW PASS SMT
2.2 - 4.0 GHz
The HMC881LP5E is ideal for:
• Test & Measurement Equipment
• Military RADAR & EW/ECM
• SATCOM & Space
• Industrial & Medical Equipment
Fast Tuning Response; 150 ns
Excellent Wideband Rejection; 40 dB
Single Positive Frequency Control: 0 to +14V
Low Insertion Loss &
User Selectable Cutoff Frequency
Single Chip Replacement
for Mechanically Tuned Designs
32 Lead 5x5 mm SMT Package
Electrical Specications, TA = +25°C
Parameter Min. Typ. Max. Units
Passband 0 4 GHz
ƒcutoff [1] Tuning Range 2.2 4 GHz
Stopband Frequency (Rejection >20 dB) 1.25 x ƒcutoff GHz
Re-entry Frequency (Rejection <30 dB) 30 GHz
Insertion Loss 3.8 dB
Return Loss 10 dB
Maximum Input Power for Linear Operation 10 dBm
Frequency Control Voltage (Vfctl) 0 14 V
Frequency Control Port Source/Sink Current (Ifctl) ±1 mA
Residual Phase Noise [2] (1 MHz offset) -165 dBc/Hz
ƒcutoff Drift Rate (Fixed Vfctl) -0.8 MHz/°C
Tuning Characteristics [3]
tFULLBAND (0% Vfctl to 90% RF) 150 ns
[1] ƒcutoff dened as the point at which the insertion loss is 3 dB below the minimum passband insertion loss.
[2] Optimum residual phase noise performance requires the use of a low noise driver circuit.
[3]Tuning speed is dependent on driver circuit. Data measured with a high speed op-amp driver and includes driver slew rate delay.
The HMC881LP5E is a MMIC low pass lter which
features a user selectable cutoff frequency. The
cutoff frequency can be varied from 2.2 to 4.0 GHz
by applying a single analog tuning voltage between
0 and 14V. This low pass lter provides a low 3.8 dB
insertion loss, 10 dB return loss and 1.25 x ƒcutoff
stopband attenuation of >20 dB. This tunable lter
can be used as a much smaller alternative to physi-
cally large switched lter banks and cavity tuned l-
ters. The HMC881LP5E has excellent microphonics
due to the monolithic design, and provides a dynami-
cally adjustable solution in advanced communications
applications. The low pass tunable lter is packaged
in a RoHS compliant 5x5mm QFN leadless package.
OBSOLETE
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
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
3 - 2
FILTERS - TUNABLE - SMT
3
HMC881LP5E
v01.0110
FILTER - TUNABLE, LOW PASS SMT
2.2 - 4.0 GHz
Return Loss vs. Temperature, Vfctl @ 7V [1]
Return Loss vs. Control Voltage [1]
Insertion Loss vs. Temperature, Vfctl @ 7V [1]
Broadband Insertion Loss
vs. Control Voltage
Broadband
Return Loss vs. Control Voltage
Insertion Loss vs. Control Voltage [1]
-70
-60
-50
-40
-30
-20
-10
0
0 5 10 15 20 25 30
INSERTION LOSS (dB)
FREQUENCY (GHz)
0V
7V
14V
-40
-30
-20
-10
0
0 5 10 15 20 25 30
S11
S22
RETURN LOSS (dB)
FREQUENCY (GHz)
0V
7V
14V
-12
-9
-6
-3
0
0 1 2 3 4 5
INSERTION LOSS (dB)
FREQUENCY (GHz)
0V
7V
14V
-40
-30
-20
-10
0
0 1 2 3 4 5
S11
S22
RETURN LOSS (dB)
FREQUENCY (GHz)
0V
7V
14V
-12
-9
-6
-3
0
0 1 2 3 4 5
+25C
+85C
-40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-40
-30
-20
-10
0
0 1 2 3 4 5
+25C
+85C
-40C
RETURN LOSS (dB)
FREQUENCY (GHz)
S11
S22
[1] Low frequency performance limited by external DC blocking capacitors at RF input and output.
OBSOLETE
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
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
3 - 3
FILTERS - TUNABLE - SMT
3
HMC881LP5E
v01.0110
FILTER - TUNABLE, LOW PASS SMT
2.2 - 4.0 GHz
Rejection Ratio vs. Temperature [1]
Tuning Sensitivity vs. Temperature Group Delay
Maximum Return Loss in a 2 dB
Bandwidth vs. Temperature
Cutoff Frequency vs. Temperature
Average Insertion Loss vs.
Temperature in a 2 dB Bandwidth
0
1
2
3
4
5
0 2 4 6 8 10 12 14
+25C
+85C
-40C
FREQUENCY(GHz)
Vftcl(V)
-5
-4
-3
-2
-1
0
0 2 4 6 8 10 12 14
+25C
+85C
-40C
INSERTION LOSS(dB)
Vfctl(V)
1
1.1
1.2
1.3
1.4
1.5
0 2 4 6 8 10 12 14
+25C
+85C
-40C
F20dB TO F3dB RATIO
Vfctl (V)
0
50
100
150
200
250
300
0 2 4 6 8 10 12 14
+25C
+85C
-40C
TUNING SENSITIVITY (MHz/V)
Vfctl(V)
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
FREQUENCY (GHz)
GROUP DELAY (nsec)
0V
7V 14V
-20
-16
-12
-8
-4
0
0 2 4 6 8 10 12 14
+25C
+85C
-40C
RETURN LOSS (dB)
Vfctl(V)
[1] Rejection ratio is dened as the ratio of the frequency at which the relative insertion loss is 20 dB, to ƒcutoff
OBSOLETE
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
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
3 - 4
FILTERS - TUNABLE - SMT
3
HMC881LP5E
v01.0110
FILTER - TUNABLE, LOW PASS SMT
2.2 - 4.0 GHz
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
4. Pin BURR LENGTH SHALL BE 0.15mm MAXIMUM.
Pin 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 [1]
HMC881LP5E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H881
XXXX
[1] 4-Digit lot number XXXX
[2] Max peak reow temperature of 260 °C
Package Information
Absolute Maximum Ratings Reliability Information
Frequency Control Voltage (Vfctl) -0.5 to +15V
RF Power Input 26.5 dBm
Storage Temperature -65 to +150 °C
ESD Rating (HBM) Class 1B
Junction Temperature to Maintain
1 Million Hour MTTF 150 °C
Nominal Junction Temperature
(T= 85 °C and Pin = 10 dBm) 90 °C
Operating Temperature -40 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
OBSOLETE
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
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
3 - 5
FILTERS - TUNABLE - SMT
3
HMC881LP5E
v01.0110
FILTER - TUNABLE, LOW PASS SMT
2.2 - 4.0 GHz
Pin Descriptions
Application Circuit
Pin Number Function Description Interface Schematic
1 - 4, 7 - 13,
15 - 18, 21 - 32 N/C
The pins are not connected internally; however, all data
shown herein was measured with these pins connected to
RF/DC ground externally.
5, 20 GND These pins and exposed paddle
must be connected to RF/DC ground.
6 RFIN This pin is DC coupled and matched to 50 Ohms.
External voltage must not be applied to this pin.
14 Vfctl Cutoff frequency control voltage.
19 RFOUT This pin is DC coupled and matched to 50 Ohms.
External voltage must not be applied to this pin.
OBSOLETE
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
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
3 - 6
FILTERS - TUNABLE - SMT
3
HMC881LP5E
v01.0110
FILTER - TUNABLE, LOW PASS SMT
2.2 - 4.0 GHz
Evaluation PCB
The circuit board used in the application should
use RF circuit design techniques. Signal lines sho-
uld have 50 Ohms impedance while the package
ground leads and exposed paddle should be con-
nected directly to the ground plane similar to that
shown. A sufficient number of via holes should be
used to connect the top and bottom ground planes.
The evaluation circuit board shown is available from
Hittite upon request.
List of Materials for Evaluation PCB 128531 [1]
Item Description
J1 - J3 SMA - SRI
C1, C2 100 pF Capacitor, 0402 Pkg.
U1 HMC881LP5E Filter
PCB [2] 127338 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Arlon 25FR or Rogers 25FR
OBSOLETE
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
