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 - 44
PHASE SHIFTERS - DIGITAL - SMT
HMC648LP6 / 648LP6E
GaAs MMIC 6-BIT DIGITAL
PHASE SHIFTER, 2.9 - 3.9 GHz
v03.1109
General Description
Features
Functional Diagram
The HMC648LP6(E) is a 6-bit digital phase shifter
which is rated from 2.9 - 3.9 GHz, providing 360
degrees of phase coverage, with a LSB of 5.625
degrees. The HMC648LP6(E) features very low RMS
phase error of 1.2 degrees and extremely low inser-
tion loss variation of ±0.5 dB across all phase states.
This high accuracy phase shifter is controlled with
positive control logic of 0/+5V. The HMC648LP6(E) is
housed in a compact 6x6 mm plastic leadless SMT
package and is internally matched to 50 Ohms with no
external components.
Low RMS Phase Error: 1.2°
Low Insertion Loss: 5 dB
High Linearity: +45 dBm
Positive Control Logic
360° Coverage, LSB = 5.625°
28 Lead 6x6mm SMT Package: 36mm
Typical Applications
The HMC648LP6(E) is ideal for:
• EW Receivers
• Weather & Military Radar
• Satellite Communications
• Beamforming Modules
• Phase Cancellation
Parameter Min. Typ. Max. Units
Frequency Range 2.9 3.9 GHz
Insertion Loss* 58dB
Input Return Loss* 16 dB
Output Return Loss* 17 dB
Phase Error* ±5 +10 / -15 deg
RMS Phase Error 1.2 deg
Insertion Loss Variation* ±0.5 dB
Input Power for 1 dB Compression 31 dBm
Input Third Order Intercept 45 dBm
Control Voltage Current 35 250 µA
Bias Control Current 515mA
*Note: Major States Shown
Electrical Speci cations
TA = +25° C, Vss= -5V, Vdd= +5V , Control Voltage= 0/ +5V, 50 Ohm System
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 - DIGITAL - SMT
10 - 45
Insertion Loss, Major States Only Normalized Loss, Major States Only
Phase Error, Major States OnlyInput Return Loss, Major States Only
Output Return Loss, Major States Only
-12
-10
-8
-6
-4
-2
0
2.4 2.8 3.2 3.6 4 4.4
INSERTION LOSS (dB)
FREQUENCY (GHz)
-20
-15
-10
-5
0
5
10
15
20
2.4 2.8 3.2 3.6 4 4.4
PHASE ERROR (degrees)
FREQUENCY (GHz)
-4
-3
-2
-1
0
1
2
3
4
2.4 2.8 3.2 3.6 4 4.4
NORMALIZED LOSS (dB)
FREQUENCY (GHz)
0
50
100
150
200
250
300
350
400
2.4 2.8 3.2 3.6 4 4.4
RELATIVE PHASE SHIFT (degrees)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
2.4 2.8 3.2 3.6 4 4.4
RETURN LOSS (dB)
FREQUENCY (GHz)
-30
-25
-20
-15
-10
-5
0
2.4 2.8 3.2 3.6 4 4.4
RETURN LOSS (dB)
FREQUENCY (GHz)
Relative Phase Shift
Major States Including All Bits
HMC648LP6 / 648LP6E
v03.1109
GaAs MMIC 6-BIT DIGITAL
PHASE SHIFTER, 2.9 - 3.9 GHz
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 - 46
PHASE SHIFTERS - DIGITAL - SMT
Relative Phase Shift,
RMS, Average, Max, All States Input IP3, Major States Only
Input IP2, Major States Only Input P1dB, Major States Only
RMS Phase Error vs. Temperature
Insertion Loss vs. Temperature,
Major States Only
10
15
20
25
30
35
40
2.9 3.1 3.3 3.5 3.7 3.9
P1dB (dBm)
FREQUENCY (GHz)
60
70
80
90
100
110
120
2.9 3.1 3.3 3.5 3.7 3.9
IP2 (dBm)
FREQUENCY (GHz)
-12
-10
-8
-6
-4
-2
0
2.9 3.1 3.3 3.5 3.7 3.9
INSERTION LOSS (dB)
FREQUENCY (GHz)
-10
-5
0
5
10
15
20
2.9 3.1 3.3 3.5 3.7 3.9
+25C
+85C
-40C
RELATIVE PHASE SHIFT (degrees)
FREQUENCY (GHz)
30
35
40
45
50
55
60
2.9 3.1 3.3 3.5 3.7 3.9
IP3 (dBm)
FREQUENCY (GHz)
-10
-5
0
5
10
15
20
2.9 3.1 3.3 3.5 3.7 3.9
RMS
AVERAGE
MAX
RELATIVE PHASE SHIFT (degrees)
FREQUENCY (GHz)
HMC648LP6 / 648LP6E
v03.1109
GaAs MMIC 6-BIT DIGITAL
PHASE SHIFTER, 2.9 - 3.9 GHz
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 - DIGITAL - SMT
10 - 47
Phase Error vs. State
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Absolute Maximum Ratings
Input Power (RFIN) 33 dBm (T= +85 °C)
Bias Voltage Range (Vdd) -0.2 to +12V
Bias Voltage Range (Vss) +0.2 to -12V
Channel Temperature (Tc) 150 °C
Thermal Resistance
(channel to ground paddle) 120 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
Truth Table
Control Voltage
State Bias Condition
Low (0) 0 to 0.2 Vdc
High (1) Vdd ±0.2 Vdc @ 35 µA Typ.
Control Voltage Input Phase Shift
(Degrees)
RFIN - RFOUT
Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6
0000 0 0 Reference*
1000 0 0 5.625
0100 0 0 11.25
0010 0 0 22.5
0001 0 0 45.0
0000 1 0 90.0
0000 0 1 180.0
1111 1 1 354.375
Any combination of the above states will provide a phase shift approxi-
mately equal to the sum of the bits selected.
*Reference corresponds to monotonic setting
Bias Voltage & Current
Vdd Idd
5.0 5.2mA
Vss Iss
-5.0 5.2mA
-15
-10
-5
0
5
10
15
20
0 45 90 135 180 225 270 315 360
PHASE ERROR (degrees)
STATE (degrees)
2.9 GHz
3.1, 3.3, 3.5, 3.7, 3.9 GHz
HMC648LP6 / 648LP6E
v03.1109
GaAs MMIC 6-BIT DIGITAL
PHASE SHIFTER, 2.9 - 3.9 GHz
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 - 48
PHASE SHIFTERS - DIGITAL - SMT
Outline Drawing
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]
HMC648LP6 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H648
XXXX
HMC648LP6E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H648
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
HMC648LP6 / 648LP6E
v03.1109
GaAs MMIC 6-BIT DIGITAL
PHASE SHIFTER, 2.9 - 3.9 GHz
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 - DIGITAL - SMT
10 - 49
Pin Number Function Description Interface Schematic
1 Vdd Voltage supply.
2, 20 GND These pins and exposed ground paddle
must be connected to RF/DC ground.
3 RFIN This port is DC coupled and matched to 50 Ohms.
4 - 18 N/C
The pins are not connected internally; however, all data
shown herein was measured with these pins connected to
RF/DC ground externally.
19 RFOUT This port is DC coupled and matched to 50 Ohms.
22 - 24,
26 - 28
BIT6, BIT5, BIT4,
BIT3, BIT2, BIT1
Control Input. See truth table
and control voltage tables.
25 Vss Voltage supply.
Pin Descriptions
HMC648LP6 / 648LP6E
v03.1109
GaAs MMIC 6-BIT DIGITAL
PHASE SHIFTER, 2.9 - 3.9 GHz
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 - 50
PHASE SHIFTERS - DIGITAL - SMT
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 117720 [1][3]
Item Description
J1 - J2 PCB Mount SMA RF Connector
J3 Header 2mm, 16 Pin
C1, C2 1000pF Capacitor, 0402 Pkg.
U1 HMC648LP6(E) 6-Bit Digital Phase Shifter
PCB [2] 117718 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
[3] Please refer to part’s pin description and functional diagram for
pin out assignments on evaluation board.
HMC648LP6 / 648LP6E
v03.1109
GaAs MMIC 6-BIT DIGITAL
PHASE SHIFTER, 2.9 - 3.9 GHz
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 - DIGITAL - SMT
10 - 51
Notes:
HMC648LP6 / 648LP6E
v03.1109
GaAs MMIC 6-BIT DIGITAL
PHASE SHIFTER, 2.9 - 3.9 GHz
