Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Features
24
0.1 µF
Ordering Information
D6
D5
D4
21
20 19
4
RFIN
5
GND
6
See
Detail
7
8
9 10
11
12
GND
GND
6-Bit
Phase Shifter
GND
3
GND
2
0.1 µF
18
GND
P/S
GND
17
SEROUT
16
GND
15
GND
14
RFOUT
13
GND
RFIN
RFOUT
-22.5 deg.
-45 deg.
-90 deg.
-180 deg.
Pin Configuration2
1
VEE
13
GND
2
P/S
14
RFOUT
3
GND
15
GND
4
GND
16
GND
5
RFIN
17
SEROUT
6
GND
18
VCC
7
GND
19
D6
8
GND
20
D5
9
GND
21
D4
Part Number
Package
10
GND
22
D3 or LE
MAPS-010145-TR0500
500 piece reel
11
GND
23
D2 or CLK
MAPS-010145-001SMB
Sample Test Board
12
GND
24
D1 or SERIN
1. Reference Application Note M513 for reel size information.
1
22
Phase Shifter Detail
Description
1
23
1
• Aerospace & Defense
• Wireless Networking & Communication...
The MAPS-010145 is ideally suited for use where
high phase accuracy with minimum loss variation
over the phase shift range are required. The 4 mm
PQFN package provides a smaller footprint than is
typically available for a digital phase shifter with an
internal driver. Typical applications include
communications antennas and phased array radars.
D3 or LE
VCC
(+5 V)
Applications
The MAPS-010145 is a GaAs pHEMT 4-bit digital
phase shifter with an integrated CMOS driver in a
4 mm PQFN plastic surface mount package. Step
size is 22.5° providing phase shift from 0° to 360° in
22.5° steps. This design has been optimized to
minimize variation in attenuation over the phase shift
range.
D2 or CLK
D1 or SERIN
VEE
(-5 V)
GND
•
•
•
•
•
Functional Schematic
4 Bit Digital Phase Shifter
360° Coverage with LSB = 22.5°
Integrated CMOS Driver
Serial or Parallel Control
Low DC Power Consumption
Minimal Attenuation Variation over Phase Shift
Range
50 Ω Impedance
EAR99
Lead-Free 4 mm 24-Lead PQFN Package
RoHS* Compliant
Bidirectional
GND
•
•
•
•
•
•
2. The exposed pad centered on the package bottom must be
connected to RF, DC and thermal ground.
* Restrictions on Hazardous Substances, compliant to current RoHS EU directive.
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Electrical Specifications:
Freq. = 3.5 - 6.0 GHz, T A = 25°C, Z0 = 50 Ω, VCC = +5.0 V, VEE = -5.0 V
Operating Power 3
3.5 - 6.0 GHz
dBm
—
—
+25
Insertion Loss
(Any Phase State)
Any Phase State
dB
—
5.0
6.5
Attenuation Variation
Across All Phase States
dB
—
±1
—
RMS Attenuation Error 4
All Values Relative to Insertion Loss at
Reference Phase
dB
—
0.4
—
RMS Phase Error 4
All Values Relative to Reference Phase
deg
—
3
—
Phase Accuracy 5
Relative to Reference Loss State
22.5 Degree Bit
45 Degree Bit
90 Degree Bit
180 Degree Bit
Sum of All Bits
deg
—
± 1.7
± 1.0
± 2.0
± 3.5
± 2.5
—
VSWR
RF Input
RF Output
Ratio
—
1.8:1
1.8:1
—
1 dB Compression
Reference State
dBm
—
27
—
Input IP3
Two-tone inputs up to +5 dBm
dBm
—
45
—
TRISE, TFALL
10% to 90% RF, 90% to 10% RF
ns
—
50
—
VCC
VEE
—
V
3.0
-5.5
—
-5.0
5.5
-3.0
VIL
VIH
LOW-level input voltage
HIGH-level input voltage
V
0.0
0.7 x VCC
—
0.3 x VCC
VCC
lIN (Input Control Current)
VIN = VCC or GND
µA
—
1
—
VOH
VOL
For serial out; IOH = -100 µA
For serial out; IOL = 100 µA
V
VCC - 0.2
—
—
—
0.2
ICC
(Quiescent Supply Current)
VCONTROL = VCC or GND
µA
—
—
2
IEE
VEE min to max
VIN = VIL or VIH
mA
-1.0
-0.1
—
3. Maximum operating power is the maximum power where the specifications are guaranteed.
4. RMS is calculated across all 15 amplitude or phase states. Refer to application section for further discussion of this method.
5. This phase shifter is guaranteed to have monotonic phase shift.
2
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Typical Performance Curves
RFIN Return Loss vs. Frequency (All States)
RFOUT Return Loss vs. Frequency (All States)
0
0
-5
-5
-10
-10
-15
-15
-20
-20
-25
-25
-30
-30
-35
3.5
4.0
4.5
5.0
5.5
6.0
-35
3.5
4.0
4.5
5.5
6.0
RMS Amplitude Error vs. Frequency (0 degree state
reference)5
RMS Phase Error vs. Frequency5
10
1.5
8
1.2
6
0.9
4
0.6
2
0
5.0
Frequency (GHz)
Frequency (GHz)
0.3
3.5
4.0
4.5
5.0
5.5
6.0
0
Frequency (GHz)
3.5
4.5
5.0
5.5
6.0
Frequency (GHz)
Phase Error (degrees) vs. State
Amplitude Error (dB) vs. State
15
2.0
3.5 GHz
4.0 GHz
4.5 GHz
5.0 GHz
5.5 GHz
6.0 GHz
1.5
10
1.0
5
0.5
0
0.0
-0.5
-5
3.5 GHz
4.0 GHz
4.5 GHz
5.0 GHz
5.5 GHz
6.0 GHz
-10
-15
4.0
0
45
90
-1.0
-1.5
135
180
225
State (deg)
270
315
360
-2.0
0
45
90
135
180
225
270
315
360
State
3
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Typical Performance Curves
Amplitude Variation vs. Phase State
Phase Shift vs. Frequency (Major States)
0
0
-45
-2
-90
-135
-4
-180
-225
-6
-270
-315
-8
-360
-10
-405
3.5
4.0
4.5
5.0
5.5
6.0
3.5
4.0
22.5°
45°
67.5°
Absolute Maximum Ratings6,7
Input Power
3.5 - 6.0 GHz
27 dBm
VCC
-0.5 V ≤ VCC ≤ +7.0 V
VEE
-7.0 V ≤ VEE ≤ +0.5 V
D1-D4, P/S, LE, CLK or
SER IN
-0.5 V ≤ VIN ≤ VCC + 0.5 V
SER OUT
-0.5 V ≤ VOUT ≤ VCC + 0.5 V
Operating Temperature
-40ºC to +85ºC
Storage Temperature
-65ºC to +150ºC
4.5
5.0
5.5
6.0
Frequency (GHz)
Frequency (GHz)
90°
112.5°
135°
157.5°
180°
205.5°
225°
247.5°
270°
292.5°
315°
337.5°
Sample Board Header Pin Labels8
6. Exceeding any one or combination of these limits may cause
permanent damage to this device.
7. MACOM does not recommend sustained operation near these
survivability limits.
8. Sample board CAD files available by request.
Handling Procedures
Please observe the following precautions to avoid
damage:
Static Sensitivity
4
Gallium Arsenide and Silicon Integrated Circuits are
sensitive to electrostatic discharge (ESD) and can
be damaged by static electricity. Proper ESD
control techniques should be used when handling
these devices.
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Modes of Operation:
Serial and Direct Parallel
Mode Truth Table9,10
Serial Mode
The serial control interface (SERIN, CLK, LE,
SEROUT) is compatible with the SPI protocol. SPI
mode is activated when P/S is kept high. The 6-bit
serial word must be loaded with the MSB first. After
shifting in the 6 bit word, a rising edge on LE will set
the phase shifter to the desired state. While LE is
high the CLK is masked to protect the data while
implementing the change. SEROUT is SERIN
delayed by 6 clock cycles.
When P/S is low, the serial control interface is
disabled. When P/S is set high, Pins 22, 23, and 24
have the LE, CLK, and SER IN function.
1
X
Serial
0
N/A
Direct Parallel
9. There are two dummy bits (D1 & D2), that must be sent in
the serial mode. This is because the 4 bit phase shifter uses
the same driver as the 6 bit phase shifter.
10. In the parallel mode, D1 and D2 should be tied to ground or to
VCC.
Truth Table (Digital Phase Shifter)11
0
0
0
0
X
X
Reference Phase
0
0
0
1
X
X
22.5°
0
0
1
0
X
X
45°
0
1
0
0
X
X
90°
Direct Parallel Mode
1
0
0
0
X
X
180°
The parallel mode is enabled when P/S is set low. In
the direct parallel mode, the phase shifter is
controlled by the parallel control inputs directly.
When P/S is set low, Pins 22, 23, and 24 have the
D3, D2, and D1 function.
1
1
1
1
X
X
337.5°
In serial mode operation, the outputs will stay
constant while LE is kept low.
11. 0 = CMOS Low; 1 = CMOS High, X is CMOS Low or High.
Serial Interface Timing Characteristics
tSCK
Min. Serial Clock Period
100
100
100
ns
tCS
Min. Control Set-up Time
20
20
20
ns
tCH
Min. Control Hold Time
20
20
20
ns
tLS
Min. LE Set-up Time
10
10
10
ns
tLEW
Min. LE Pulse Width
10
10
10
ns
tLH
Min. Serial Clock Hold Time from LE
10
10
10
ns
tLES
Min. LE Pulse Spacing
630
630
630
ns
5
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Functionality
Modes of Operation: Serial and Direct Parallel
Serial Input Interface Timing Diagram
tLS
tLEW
tLH
SERIAL
CLK
LE
tLES
CONTROL
WORD
D5
MSB
D4
tCS
D1
D0
LSB
tCH
Lead Free 4 mm 24-Lead PQFN †
†
Reference Application Note S2083 for lead-free solder reflow recommendations.
Meets JEDEC moisture sensitivity level 1 requirements.
Plating is 100% matte tin over copper.
6
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Application Section
Phase shifters such as this product are bidirectional. All prior data in the datasheet shows S(2,1), but the following
pages illustrate typical S(1,2) performance.
By inspection of the posted S-Parameters, one can observe that this device will work bidirectionally. Considering
the MMIC topology, this is an expected feature.
Insertion Loss (S12), All States
Insertion Loss (S21), All States
7
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Application Section
Below is a comparison of unwrapped, normalized phase in both directions.
Insertion Phase (S21), All States
Insertion Phase (S12), All State
8
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Application Section
To be complete in reviewing phase shifter performance in both directions, error metrics should be discussed.
With phase shifters, both phase and amplitude error are described. Amplitude error describes the state-to-state
amplitude variation. Phase error describes the delta-from ideal phase observed in each state.
Amplitude error can be calculated in two ways. The first is with respect to the 0° or reference state. This can be
called cross-error. Another, and perhaps more widely accepted method for calculating amplitude error, is to compare it by frequency to the mean amplitude of all the states as is calculated here. [1]
Amplitude Error (dB) vs. State (S12)
While the above shows amplitude error at particular frequencies vs phase shifter state, another common way to
look at this parameter is error vs frequency.
Amplitude Error Compared to Average Amplitude (S12)
9
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Application Section
Phase error is calculated as the difference between the requested or ideal phase and actual insertion phase. For
example, if 22.5° of shift is desired, and 23.5° is observed, the delta, or error, is 1°.
Phase Error (°) vs. State (S12)
Phase Error (°) vs. Frequency as shown below:
Phase Error compared to ideal (S12)
Following many traces, trying to consider how that will impact a system is difficult. A simpler method is adopted:
RMS Error. It is important to use the right convention when applying an RMS calculation to phase shifter insertion
phase. We compare the raw errors with the mean (error) below.
If we use only the raw phase errors in an RMS error calculation the result will be pessimistic. This is because the
average of the phase errors is not typically zero. Ignoring the mean error would result in an RMS Error that differs
depending on chosen reference state. [1]
[1]
10
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
Application Section
This graph shows RMS Phase Error in both directions. The traces overlay.
RMS
Phase
Error
& S12)
RMS
Phase
Error
(S21 (S21
and S12)
4.5
4
3.5
Degrees
3
2.5
2
1.5
1
0.5
0
3.5
4
4.5
5
Frequency (GHz)
RMS Phase Error (S12) (dB)
5.5
6
RMS Phase Error (S21) (dB)
For RMS Error applied to amplitude, both methods are shown below. One method derives error vs the reference
(0°) state, and the other method calculates error vs the mean insertion loss. Forward and reverse conditions
overlay.
RMS Amplitude Error Referencing the Average & the 0°States (S21 & S12)
References:
[1] “RMS Phase & Amplitude Calculation for Phase-shifters”, 10-12-2008 T.Fattorini, MACOM DesignGuide
11
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151
Digital Phase Shifter, 4-Bit,
3.5 - 6.0 GHz
MAPS-010145
Rev. V4
MACOM Technology Solutions Inc. (“MACOM”). All rights reserved.
These materials are provided in connection with MACOM’s products as a service to its customers and may be
used for informational purposes only. Except as provided in its Terms and Conditions of Sale or any separate
agreement, MACOM assumes no liability or responsibility whatsoever, including for (i) errors or omissions in these
materials; (ii) failure to update these materials; or (iii) conflicts or incompatibilities arising from future changes to
specifications and product descriptions, which MACOM may make at any time, without notice. These materials
grant no license, express or implied, to any intellectual property rights.
THESE MATERIALS ARE PROVIDED "AS IS" WITH NO WARRANTY OR LIABILITY, EXPRESS OR IMPLIED,
RELATING TO SALE AND/OR USE OF MACOM PRODUCTS INCLUDING FITNESS FOR A PARTICULAR
PURPOSE, MERCHANTABILITY, INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHT, ACCURACY OR
COMPLETENESS, OR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES WHICH MAY
RESULT FROM USE OF THESE MATERIALS.
MACOM products are not intended for use in medical, lifesaving or life sustaining applications. MACOM
customers using or selling MACOM products for use in such applications do so at their own risk and agree to fully
indemnify MACOM for any damages resulting from such improper use or sale.
12
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007151