TGP2108-SM
2.5-4GHz 6-Bit Digital Phase Shifter
Product Description
The Qorvo TGP2108-SM is a packaged 6-bit digital phase
shifter fabricated on Qorvo’s high performance 0.15 um
GaAs pHEMT process. It operates over 2.5-4 GHz while
providing 360 of phase coverage with a LSB of 5.625. The
TGP2108-SM offers an exceptional RMS phase error of <2
0
and amplitude error of <0.4 dB over most of the operational
band. With other equally impressive small signal and
linearity characteristics, the TGP2108-SM delivers superior
performance for your S-band phased array applications.
Housed in a small 5 x 5 mm plastic overmold QFN package,
DC blocked on both ports with bi-directional operation and
the use of positive only control logic, the TGP2108-SM
supports ease of use and simply system integration. Low
DC power consumption also provides the system designer
more flexibility in the overall power management of the
system.
The device is lead-free and RoHS compliant.
Evaluation Boards are available upon request.
Product Features
Frequency Range: 2.5 to 4 GHz
6-Bit Digital Phase Shifter
Bi-Directional
360° Coverage, LSB = 5.625°
RMS Phase Error: < 2° (2.7 – 3.7 GHz)
< 5° (other frequencies)
RMS Amplitude Error: < 0.4 dB
Insertion Loss: 5 dB
Return Loss: 15 dB
Input P1dB: 29 dBm
Input IP3: 45 dBm
Control Voltage: 0 /+3V to +5 V
QFN Package Dimensions: 5.0 x 5.0 x 0.85 mm
Performance is typical across frequency. Please
reference electrical specification table and data plots for
more details.
Block Diagram
Applications
S-Band Radar
In
5
0
4
11
0
22
0
45
0
90
0
180
0
15
Out
6
7
8
9
10
11
12
Ordering Information
Part No.
TGP2108-SM
ECCN
EAR99
Description
2.5-4GHz 6-Bit Digital
Phase Shifter
Data Sheet Rev. B - Sept. 22, 2016
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TGP2108-SM
2.5-4GHz 6-Bit Digital Phase Shifter
Electrical Specifications
Test conditions unless otherwise noted: 25°C. Control Voltage (REF, 5
0
, 11
0
, 22
0
, 45
0
, 90
0
, 180
0
) = 0/+5 V; See Bias Truth Table.
Parameter
Operational Frequency Range
Insertion Loss
Input Return Loss
Output Return Loss
RMS Phase Error
RMS Amplitude Error
Phase
5°
355°
Freq.
(GHz)
Min
2.5
Typical
Max
4
7.5
8.5
Units
GHz
dB
dB
dB
deg
dB
5
15
15
<2
<5
5
4
12
11
11
20
21
22
43
41
42
44
88
84
85
88
178
172
175
184
355
342
346
358
< 0.4
6
5
13
12
12
22
24
25
46
44
45
46
92
88
89
91
184
177
180
188
6
355
356
10
29
45
0.002
2.7 – 3.7
Others
2.5, 3.5, 4
3
2.5
3
3.5, 4
2.5, 3
3.5
4
2.5
3
3.5
4
2.5
3
3.5
4
2.5
3
3.5
4
2.5
3
3.5
4
5°
11°
22°
45°
Relative Phase
90°
180°
355°
8
7
16
14
15
26
28
29
52
48
49
50
99
95
96
98
196
189
192
200
26
13
16
30
degree
Input P1dB
Input IP3 (Spacing = 10 MHz, Pin/Tone = 8 dBm)
Insertion Loss Temperature Coefficient
dBm
dBm
dB/°C
Data Sheet Rev. B - Sept. 22, 2016
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TGP2108-SM
2.5-4GHz 6-Bit Digital Phase Shifter
Recommended Operating Conditions
Parameter
Control Voltage (REF, 5
0
, 11
0
, 22
0
, 45
0
, 90
0
, 180
0
)
Current (I
REF
, I
CTRL
)
Temperature Range
Supply Current (I
S
)
Electrical specifications are measured at specified test conditions.
Specifications are not guaranteed over all recommended operating conditions.
Value / Range
0/+5 V
< 0.3 mA
-40 to +85
0
C
100 uA typical
Bias Truth Table
Logic “0” = 0 V, Logic “1” = +3V or +5 V
Phase Shifter
0° (Reference)
5°
11°
22°
45°
90°
180°
355°
5
0
0
1
0
0
0
0
0
1
11
0
0
0
1
0
0
0
0
1
22
0
0
0
0
1
0
0
0
1
45
0
0
0
0
0
1
0
0
1
90
0
0
0
0
0
0
1
0
1
180
0
0
0
0
0
0
0
1
1
REF
1
1
1
1
1
1
1
1
Data Sheet Rev. B - Sept. 22, 2016
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TGP2108-SM
2.5-4GHz 6-Bit Digital Phase Shifter
Performance Plots – Small Signal
Test conditions unless otherwise noted: 5V and 3V, 25 °C
RMS Phase Error vs. Freq. vs. Temp
V
REF
= 5 V, All Phase States
RMS Phase Error vs. Freq.
V
REF
= 3 V, All Phase States
16
16
RMS Phase Error (degrees)
14
12
10
8
6
4
2
RMS Phase Error (degrees)
-40C
+25C
14
12
10
8
6
4
2
+25C
+85C
0
2
2.5
3
3.5
Frequency (GHz)
4
4.5
0
2
2.5
3
3.5
Frequency (GHz)
4
4.5
RMS Amplitude Error vs. Freq vs. Temp.
V
REF
= 5 V, All Phase States
RMS Amplitude Error vs. Freq.
V
REF
= 3 V, All Phase States
1.4
1.4
RMS Amplitude Error (dB)
1.2
1.0
0.8
RMS Amplitude Error (dB)
-40C
+25C
+85C
+25C
1.2
1.0
0.8
0.6
0.4
0.2
0.6
0.4
0.2
0.0
2
2.5
3
3.5
Frequency (GHz)
4
4.5
0.0
2
2.5
3
3.5
Frequency (GHz)
4
4.5
Avg. Insertion Loss vs. Freq. vs. Temp.
V
REF
= 5 V, All Phase States
Avg. Insertion Loss vs. Freq.
V
REF
= 3 V, All Phase States
-2
-3
-4
-2
-3
-4
S21 (dB)
S21 (dB)
-40C
+25C
+85C
-5
-6
-7
-8
-9
-5
-6
-7
-8
-9
+25C
-10
2
2.5
3
3.5
Frequency (GHz)
4
4.5
-10
2
2.5
3
3.5
Frequency (GHz)
4
4.5
Data Sheet Rev. B - Sept. 22, 2016
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TGP2108-SM
2.5-4GHz 6-Bit Digital Phase Shifter
Performance Plots – Small Signal (Cont.)
Test conditions unless otherwise noted: 5V and 3V, 25 °C
Avg. IRL vs. Freq. vs.Temp.
V
REF
= 5 V, All Phase States
Avg. IRL vs. Freq.
V
REF
= 3 V, All Phase States
0
-5
-10
0
-5
-10
S11 (dB)
S11 (dB)
-40C
+25C
+85C
-15
-20
-25
-15
-20
-25
+25C
-30
2
2.5
3
3.5
Frequency (GHz)
4
4.5
-30
2
2.5
3
3.5
Frequency (GHz)
4
4.5
IRL vs. Freq.
V
REF
= 5 V, All Phase States, 25
0
C
IRL vs. Freq.
V
REF
= 3 V, All Phase States, 25
0
C
0
-5
-10
0
-5
-10
S11 (dB)
S11 (dB)
-15
-20
-25
Peak
Average
-15
-20
-25
Peak
Average
-30
2
2.5
3
3.5
Frequency (GHz)
4
4.5
-30
2
2.5
3
3.5
Frequency (GHz)
4
4.5
Avg. ORL vs. Freq. vs. Temp
V
REF
= 5 V, All Phase States
Avg. ORL vs. Freq.
V
REF
= 3 V, All Phase States
0
-5
-10
0
-5
-10
S22 (dB)
S22 (dB)
-40C
-15
-20
-25
-15
-20
-25
+25C
+25C
+85C
-30
2
2.5
3
3.5
Frequency (GHz)
4
4.5
-30
2
2.5
3
3.5
Frequency (GHz)
4
4.5
Data Sheet Rev. B - Sept. 22, 2016
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5 of 18
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