ALPHA PS094-315 Datasheet
Alpha Industries, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email sales@alphaind.com • www.alphaind.com 1
Specifications subject to change without notice. 1/02A
LGA Packaged Phase Shifter
for GSM Base Stations
Features
■ Designed for GSM 942.5 ± 17.5 MHz Band
■ 100 Degree Phase Shift Range
■ 1.5 Degree Phase Deviation
■ 0.3 dB Insertion Loss Deviation
■ 0–12 V Control Voltage Range
■ Specified 33 dBm IP3
■ Small Footprint LGA Package
PS094-315
Description
The PS094-315 is a voltage controlled phase shifter
specifically designed for use in power amplifier distortion
compensation circuits centered at 942.5 MHz in GSM
band base stations. Its characteristics are specified in a
35 MHz bandwidth. The PS094-315 employs a monolithic
quadrature hybrid and a pair of selected silicon varactor
diodes to achieve 100 degree phase shift and low insertion
loss.The PS094-315 is packaged in the small outline LGA
(Land Grid Array) surface mount package with the internal
elements affixed to an organic BT substrate.
Parameter Condition Min. Typ. Max. Unit
Frequency Range (BW) F
O =
942.5 925 960 MHz
Phase Shift At FO, CV= 12 V 100 Deg.
Phase Deviation in BW CV= 0–12 V 1.5 2.0 Deg.
Control Voltage (CV) Range 0 12 V
Control Current CV= 12 V 1 µA
Insertion Loss in BW CV= 0 V 2.3 dB
I.L. Deviation in BW CV= 0–12 V 0.3 dB
I.L. Variation At FO, CV= 0–12 V 0.75 dB
VSWR in BW 1.8
IM3 PIN= 8 dBm, 900/905 MHz, CV= 0 V -50 dBc
IP3 Derived from IM3 33 dBm
Electrical Specifications at 25°C
2 Alpha Industries, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 1/02A
LGA Packaged Phase Shifter for GSM Base Stations PS094-315
Insertion Loss vs.
Frequency and Control Voltage
Frequency (GHz)
Insertion Loss (dB)
-2.5
-2.4
-2.3
-2.2
-2.1
-2.0
-1.9
-1.8
-1.7
-1.6
-1.5
0.92 0.93 0.94 0.95 0.96
0 V
4 V
8 V
12 V
Input/Output Return Loss vs.
Frequency and Control Voltage
Frequency (GHz)
Return Loss (dB)
-40
-35
-30
-25
-20
-15
-10
-5
0
0.92
0.93 0.94 0.95 0.96
0 V
4 V
8 V
12 V
Insertion Loss Flatness vs. Control Voltage
042 681012
Flatness (dB)
Control Voltage (V)
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
Phase vs. Frequency and Control Voltage
Frequency (GHz)
Phase Shift (Degrees)
0
20
40
60
80
100
120
0.92 0.93 0.94 0.95 0.96
0 V
4 V
8 V
12 V
Phase Flatness vs. Control Voltage
042 681012
Flatness (Degrees)
Control Voltage (V)
-2.5
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
2.5
042681012
IP3 (dBm)
Control Voltage (V)
IP3 vs. Control Voltage
RF
1
= 0.900 GHz, RF2 = 0.905 GHz @ 8 dBm
30
32
34
36
38
40
42
44
46
48
50
Typical Performance Data
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