Page 1
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
HIP3™ Variable Attenuator
for DCS and PCS Base Stations
Features
■ 23 dB Attenuation Range
■ 1.5 dB Insertion Loss, 1.5 SWR
■ 0–12 V Control Voltage
■ 43 dBm IP3
■ Small Footprint LGA Package
■ Designed for DCS/PCS Base Station
Applications
AV132-315
Description
The AV132-315 is a voltage controlled variable attenuator
from Alpha’s series of HIP3™ components. It is
specifically designed and specified for use as a wide
dynamic range low distortion attenuator for DCS and PCS
base station applications centered at 1837.5 MHz and
1960 MHz. The AV132-315 employs a monolithic
quadrature hybrid and a pair of silicon PIN diodes to
achieve the specified low distortion performance. It
operates from 0–12 V with 1.6 mA typical control current
at maximum attenuation. The AV132-315 is packaged in
a 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
DCS Frequency Range (BW) 1805 1870 MHz
PCS Frequency Range (BW) FO± 30.0 MHz 1930 1990 MHz
Control Voltage (CV) Range 0 12 V
Insertion Loss in BW CV= 0 V 1.5 dB
Attenuation Range At FO, CV= 12 V 23 dB
VSWR in BW 1.5
IP3 1900/1905 MHz, CV= 0 V 43 dBm
IM3 8 dBm -70 dBc
Electrical Specifications at 25°C
Page 2
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
HIP3™ Variable Attenuator for DCS and PCS Base Stations AV132-315
Insertion Loss vs. Frequency and
Control Voltage — DCS Band
Frequency (GHz)
Loss (dB)
-25
-20
-15
-10
-5
0
1.805 1.830 1.855 1.880
0 V
4 V
8 V
12 V
Input/Output Return Loss vs. Frequency
and Control Voltage — DCS Band
Frequency (GHz)
Return Loss (dB)
-35
-30
-25
-20
-15
-10
1.805 1.830 1.855 1.880
0 V
4 V
8 V
12 V
Insertion Loss Flatness vs.
Control Voltage — DCS Band
042681012
Flatness (dB)
Control Voltage (V)
-0.50
-0.45
-0.40
-0.35
-0.30
-0.25
-0.20
-0.15
-0.10
-0.05
0
Phase vs. Frequency and
Control Voltage — DCS Band
Frequency (GHz)
Phase (Degrees)
0
2
4
6
8
10
12
1.805 1.830 1.855 1.880
0 V
4 V
8 V
12 V
IP3 vs. Control Voltage
RF
1
= 1.900 GHz, RF2 = 1.905 GHz @ 8 dBm
042681012
Control Voltage (V)
IP3 (dBm)
30
32
34
36
38
40
42
44
46
48
50
Total Current vs. Control Voltage
063912
Control Voltage (V)
Total Current (mA)
0
0.5
1.0
1.5
2.0
Typical Performance Data
Page 3
HIP3™ Variable Attenuator for DCS and PCS Base Stations AV132-315
Alpha Industries, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email sales@alphaind.com • www.alphaind.com 3
Specifications subject to change without notice. 1/02A
Insertion Loss vs. Frequency and
Control Voltage — PCS Band
Frequency (GHz)
Loss (dB)
-25
-20
-15
-10
-5
0
1.93 1.94 1.95 1.96 1.97 1.98 1.99
0 V
4 V
8 V
12 V
Input/Output Return Loss vs. Frequency
and Control Voltage — PCS Band
Frequency (GHz)
Return Loss (dB)
-35
-30
-25
-20
-15
-10
1.93
1.94 1.95 1.96 1.97 1.98 1.99
0 V
4 V
8 V
12 V
Insertion Loss Flatness vs.
Control Voltage — PCS Band
042681012
Control Voltage (V)
Flatness (dB)
-0.50
-0.45
-0.40
-0.35
-0.30
-0.25
-0.20
-0.15
-0.10
-0.05
0
Phase vs. Frequency and
Control Voltage — PCS Band
Frequency (GHz)
Phase (Degrees)
0
2
4
6
8
10
12
1.93 1.94 1.95 1.96 1.97 1.98 1.99
0 V
4 V
8 V
12 V
3rd Order Intermod vs. Control Voltage
RF
1
= 1.900 GHz, RF2 = 1.905 GHz @ 8 dBm
042681012
Control Voltage (V)
Intermod (dBm)
30
32
34
36
38
40
42
44
46
48
50
Page 4
4 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
HIP3™ Variable Attenuator for DCS and PCS Base Stations AV132-315
-315
B
3
B
1
C1C2C
3
A1A2A
3
0.091 (2.32 mm)
0.193 (4.90 mm)
A
1
B
1
0.126
(3.20 mm)
0.079 (2 mm)
ENCAP
0.014 (0.36 mm)
SUBSTRATE
0.000
0.037 (1.00 mm)
0.047 (1.20 mm)
0.079 (2.00 mm)
0.031
(0.775 mm)
0.166 (4.22 mm)
0.135 (3.42 mm)
0.193 (4.90 mm)
0.081 (2.05 mm)
0.058 (1.48 mm)
0.027 (0.68 mm)
0.000
0.112 (2.85 mm)
0.054 (1.370 mm)
0.024 (0.60 mm)
Vcontrol
CONTROL
VOLTAGE
10 pF
10 pF
10 pF
Vcontrol
RF
IN/OUT
RF
IN/OUT
10 pF
Connection Diagram
Characteristic Value
RF Input Power 0.5 W CW, 4 W @ 12.5%
Duty Cycle
Control Voltage 15 V
Control Current 50 mA Each Diode
Operating Temperature -40 to +85°C
Storage Temperature -40 to +85°C
Maximum Reverse Diode Voltage -10 V
Electrostatic Discharge +125 V
Absolute Maximum Ratings
Note: Operating this device above any of these parameters may cause
irreversible damage.
Terminal No. Terminal Name
A
1
IN/OUT
A
2
GND
A
3
IN/OUT
B
1
GND
B
3
GND
C
1
Vcontrol
C
2
GND
C
3
Vcontrol
B
3
B
1
C1C2C
3
A1A2A
3
IN/OUT
GND
IN/OUT
GND GND
Vcontrol
Vcontrol
GND
AV132
Pin Out (Bottom View)
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