10
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
10 - 2
PHASE SHIFTERS - ANALOG - SMT
HMC538LP4 / 538LP4E
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
v02.0209
General Description
Features
Functional Diagram
The HMC538LP4(E) are Analog Phase Shift-
ers which are controlled via an analog control
voltage from 0 to +5V. The HMC538LP4(E)pro-
vides a continuously variable phase shift of 0 to
800 degrees at 6 GHz, and 0 to 450 degrees at
16 GHz, with consistent insertion loss versus phase
shift. The phase shift is monotonic with respect to
control voltage. The control port has a modulation
bandwidth of 50 MHz. The low insertion loss and
compact size enable this part to be used in a wide
range of applications, including the phase adjustment
of clocks in ber optic systems and test equipment.
THe HMC538LP4(E) is housed in leadless QFN sur-
face mount packages and are available in both stan-
dard and RoHS compliant versions.
Available as Lead Free
Wide Bandwidth: 6 - 15 GHz
>600° Phase Shift
Single Positive Voltage Control
QFN Leadless SMT Package, 16 mm2
Electrical Speci cations, TA = +25° C, 50 Ohm System
Typical Applications
The HMC538LP4 / HMC538LP4E is ideal for:
• Fiber Optics
• Military
• Test Equipment
Parameter Frequency (GHz) Min. Typ. Max. Units
Phase Shift Range 6 - 10 GHz
10 - 15 GHz
600
360
800
600
degrees
degrees
Insertion Loss 6 - 15 GHz 8 11 dB
Return Loss (Input and Output) 6 - 15 GHz 7 dB
Control Voltage Range 6 - 15 GHz 0 - 5 Volt
Modulation Bandwidth 6 - 15 GHz 50 MHz
Phase Voltage Sensitivity 6 - 15 GHz 120 deg /Volt
Insertion Phase Temperature Sensitivity 6 - 15 GHz 0.5 deg /°C
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
10
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
PHASE SHIFTERS - ANALOG - SMT
10 - 3
Phase Shift vs. Control Voltage
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
v02.0209
HMC538LP4 / 538LP4E
Insertion Loss vs. Frequency
Phase Shift vs. Frequency @ Vctl = 5V
(Relative to Vctl = 0V)
Input Return Loss vs. Frequency,
Vctl = 0 to +5V
0
150
300
450
600
750
900
012345
6 GHz
11 GHz
15 GHz
NORMALIZED PHASE SHIFT (degrees)
Vctl (Vdc)
Output Return Loss vs. Frequency,
Vctl = 0 to +5V
-10
-8
-6
-4
-2
0
012345
+25C
+85C
-40C
INSERTION LOSS (dB)
Vctl (Vdc)
-20
-16
-12
-8
-4
0
5 6 7 8 9 10 11 12 13 14 15 16
0V
1V
2V
3V
4V
5V
INSERTION LOSS (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
5 6 7 8 9 10 11 12 13 14 15 16
RETURN LOSS (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
5 6 7 8 9 10 11 12 13 14 15 16
RETURN LOSS (dB)
FREQUENCY (GHz)
0
150
300
450
600
750
900
5 6 7 8 9 10 11 12 13 14 15 16
+25C
+85C
-40C
NORMALIZED PHASE SHIFT (degrees)
FREQUENCY (GHz)
Insertion Loss vs. Control Voltage @ 11 GHz
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
10
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
10 - 4
PHASE SHIFTERS - ANALOG - SMT
Input IP3 vs. Control Voltage
Insertion Loss vs. Pin @ 11 GHz
Insertion Loss vs. Pin @ 7 GHz
Second Harmonics vs. Control Voltage,
Pin = -10 dBm
Insertion Loss vs. Pin @ 15 GHz
0
15
30
45
60
75
90
012345
6 GHz
11 GHz
15 GHz
2nd HARMONICS (dBc)
Vctl (Vdc)
0
5
10
15
20
25
30
35
012345
6 GHz
11 GHz
15 GHz
IP3 (dBm)
Vctl (Vdc)
-10
-8
-6
-4
-2
0
-15 -10 -5 0 5 10 15 20 25
0V
2V
5V
INSERTION LOSS (dB)
INPUT POWER (dBm)
-10
-8
-6
-4
-2
0
-15 -10 -5 0 5 10 15 20 25
0V
2V
5V
INSERTION LOSS (dB)
INPUT POWER (dBm)
-10
-8
-6
-4
-2
0
-15 -10 -5 0 5 10 15 20 25
0V
2V
5V
INSERTION LOSS (dB)
INPUT POWER (dBm)
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
v02.0209
Phase Shift vs. Pin @ 7 GHz
-10
0
10
20
30
40
50
-20 -15 -10 -5 0 5
0V
2V
5V
NORMALIZED PHASE SHIFT (degrees)
INPUT POWER (dBm)
HMC538LP4 / 538LP4E
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
10
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
PHASE SHIFTERS - ANALOG - SMT
10 - 5
Absolute Maximum Ratings
Control Voltage (Vctl) -1 Vdc to + 8 Vdc
Input Power (RFin) +25 dBm
Channel Temperature (Tc) 150 °C
Continuous Pdiss (T = 85 °C)
(derate 21 mW/°C above 85 °C) 1.36 W
Thermal Resistance
(junction to ground paddle) 48 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A
Phase Shift vs. Pin @ 11 GHz
-5
0
5
10
15
20
-20 -15 -10 -5 0 5
0V
2V
5V
NORMALIZED PHASE SHIFT (degrees)
INPUT POWER (dBm)
Phase Shift vs. Pin @ 15 GHz
-10
-6
-2
2
6
10
-20 -15 -10 -5 0 5
0V
2V
5V
NORMALIZED PHASE SHIFT (degrees)
INPUT POWER (dBm)
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
v02.0209
HMC538LP4 / 538LP4E
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
10
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
10 - 6
PHASE SHIFTERS - ANALOG - SMT
Pin Number Function Description Interface Schematic
1, 2, 4-15,
17-20, 22-24 N/C No connection required. These pins may be connected to
RF/DC ground without affecting performance.
3 RFIN Port is DC blocked.
16 RFOUT Port is DC blocked.
21 Vctl
Phase shift control pin. Application of a voltage between 0 and 5 volts causes
the transmission phase to change. The DC equivalent circuit is a series con-
nected diode and resistor.
GND Ground: Backside of package has exposed metal ground slug that must be
connected to ground thru a short path. Vias under the device are required.
Pin Descriptions
Outline Drawing
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
v02.0209
HMC538LP4 / 538LP4E
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.
6. CLASSIFIED AS MOISTURE SENSITIVITY LEVEL (MSL) 1.
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC538LP4 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H538
XXXX
HMC538LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H538
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
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
10
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
PHASE SHIFTERS - ANALOG - SMT
10 - 7
Evaluation PCB
The circuit board used in the nal application should
use RF circuit design techniques. Signal lines
should have 50 ohm 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 board should be mounted to an
appropriate heat sink. The evaluation circuit board
shown is available from Hittite upon request.
List of Materials for Evaluation PCB 108812 [1]
Item Description
J1 - J3 PCB Mount SMA RF Connector
U1 HMC538LP4 / HMC538LP4E
Analog Phase Shifter
PCB [2] 111296 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
v02.0209
HMC538LP4 / 538LP4E
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
