HMC538LP4
/
538LP4E
v02.0209
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
Typical Applications
The HMC538LP4 / HMC538LP4E is ideal for:
• Fiber Optics
• Military
• Test Equipment
Features
Available as Lead Free
Wide Bandwidth: 6 - 15 GHz
>600° Phase Shift
Single Positive Voltage Control
QFN Leadless SMT Package, 16 mm
2
Functional Diagram
General Description
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 fiber 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.
10
PHASE SHIFTERS - ANALOG - SMT
Electrical Specifi cations,
T
A
= +25° C, 50 Ohm System
Parameter
Phase Shift Range
Insertion Loss
Return Loss (Input and Output)
Control Voltage Range
Modulation Bandwidth
Phase Voltage Sensitivity
Insertion Phase Temperature Sensitivity
Frequency (GHz)
6 - 10 GHz
10 - 15 GHz
6 - 15 GHz
6 - 15 GHz
6 - 15 GHz
6 - 15 GHz
6 - 15 GHz
6 - 15 GHz
Min.
600
360
Typ.
800
600
8
7
0-5
50
120
0.5
11
Max.
Units
degrees
degrees
dB
dB
Volt
MHz
deg /Volt
deg /°C
10 - 2
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
HMC538LP4
/
538LP4E
v02.0209
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
Insertion Loss vs. Control Voltage @ 11 GHz
0
+25C
+85C
-40C
Phase Shift vs. Control Voltage
NORMALIZED PHASE SHIFT (degrees)
900
750
600
450
300
150
0
6 GHz
11 GHz
15 GHz
INSERTION LOSS (dB)
-2
-4
-6
-8
-10
0
1
2
Vctl (Vdc)
3
4
5
0
1
2
Vctl (Vdc)
3
4
5
10
PHASE SHIFTERS - ANALOG - SMT
10 - 3
Phase Shift vs. Frequency @ Vctl = 5V
(Relative to Vctl = 0V)
NORMALIZED PHASE SHIFT (degrees)
900
750
600
450
300
150
0
5
6
7
8
9
10
11
12
13
14
15
16
FREQUENCY (GHz)
+25C
+85C
-40C
Insertion Loss vs. Frequency
0
INSERTION LOSS (dB)
-4
-8
-12
-16
0V
1V
2V
3V
4V
5V
-20
5
6
7
8
9
10
11
12
13
14
15
16
FREQUENCY (GHz)
Input Return Loss vs. Frequency,
Vctl = 0 to +5V
0
Output Return Loss vs. Frequency,
Vctl = 0 to +5V
0
RETURN LOSS (dB)
-10
RETURN LOSS (dB)
5
6
7
8
9
10
11
12
13
14
15
16
-5
-5
-10
-15
-15
-20
FREQUENCY (GHz)
-20
5
6
7
8
9
10
11
12
13
14
15
16
FREQUENCY (GHz)
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
HMC538LP4
/
538LP4E
v02.0209
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
Second Harmonics vs. Control Voltage,
Pin = -10 dBm
90
75
2nd HARMONICS (dBc)
60
Input IP3 vs. Control Voltage
35
30
25
IP3 (dBm)
20
15
10
6 GHz
11 GHz
15 GHz
45
30
15
0
0
1
2
Vctl (Vdc)
3
4
5
6 GHz
11 GHz
15 GHz
5
0
0
1
2
Vctl (Vdc)
3
4
5
10
PHASE SHIFTERS - ANALOG - SMT
0
INSERTION LOSS (dB)
-2
Insertion Loss vs. Pin @ 7 GHz
0V
2V
5V
Insertion Loss vs. Pin @ 11 GHz
0
-4
INSERTION LOSS (dB)
-2
0V
2V
5V
-4
-6
-6
-8
-8
-10
-15
-10
-5
0
5
10
15
20
25
-10
-15
-10
-5
0
5
10
15
20
25
INPUT POWER (dBm)
INPUT POWER (dBm)
Insertion Loss vs. Pin @ 15 GHz
0
0V
2V
5V
Phase Shift vs. Pin @ 7 GHz
NORMALIZED PHASE SHIFT (degrees)
50
40
30
20
10
0
-10
-20
0V
2V
5V
INSERTION LOSS (dB)
-2
-4
-6
-8
-10
-15
-10
-5
0
5
10
15
20
25
-15
-10
-5
0
5
INPUT POWER (dBm)
INPUT POWER (dBm)
10 - 4
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
HMC538LP4
/
538LP4E
v02.0209
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
Phase Shift vs. Pin @ 11 GHz
NORMALIZED PHASE SHIFT (degrees)
20
Phase Shift vs. Pin @ 15 GHz
NORMALIZED PHASE SHIFT (degrees)
10
0V
2V
5V
15
0V
2V
5V
6
10
2
5
-2
0
-6
-5
-20
-15
-10
-5
0
5
-10
-20
-15
-10
-5
0
5
INPUT POWER (dBm)
INPUT POWER (dBm)
10
PHASE SHIFTERS - ANALOG - SMT
10 - 5
Absolute Maximum Ratings
Control Voltage (Vctl)
Input Power (RFin)
Channel Temperature (Tc)
Continuous Pdiss (T = 85 °C)
(derate 21 mW/°C above 85 °C)
Thermal Resistance
(junction to ground paddle)
Storage Temperature
Operating Temperature
ESD Sensitivity (HBM)
-1 Vdc to + 8 Vdc
+25 dBm
150 °C
1.36 W
48 °C/W
-65 to +150 °C
-40 to +85 °C
Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
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
HMC538LP4
/
538LP4E
v02.0209
600° ANALOG PHASE SHIFTER,
6 - 15 GHz
Outline Drawing
10
PHASE SHIFTERS - ANALOG - SMT
Package Information
Part Number
HMC538LP4
HMC538LP4E
Package Body Material
Low Stress Injection Molded Plastic
RoHS-compliant Low Stress Injection Molded Plastic
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.
Lead Finish
Sn/Pb Solder
100% matte Sn
MSL Rating
MSL1
MSL1
[1]
Package Marking
[3]
H538
XXXX
H538
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
Pin Descriptions
Pin Number
1, 2, 4-15,
17-20, 22-24
3
Function
N/C
Description
No connection required. These pins may be connected to
RF/DC ground without affecting performance.
Port is DC blocked.
Interface Schematic
RFIN
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.
10 - 6
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
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