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 UMTS 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 UMTS Base Stations
AV133-315
Description
The AV133-315 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 UMTS base
station applications centered at 2140 MHz. The AV133315 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 at 1.6 mA typical
control current at maximum attenuation.The AV133-315
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
UMTS Frequency Range (BW) FO± 12.5 MHz 2110 2170 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 2140/2145 MHz, CV= 0 V 43 dBm
IM3 8 dBm -70 dBc
Electrical Specifications at 25°C
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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 UMTS Base Stations AV133-315
Insertion Loss vs. Frequency and
Control Voltage — UMTS Band
-50
-40
-30
-20
-10
0
2.11 2.12 2.13 2.14 2.15 2.16 2.17
Frequency (GHz)
Loss (dB)
0 V
4 V
8 V
12 V
Input/Output Return Loss vs. Frequency
and Control Voltage — UMTS Band
-40
-35
-30
-25
-20
-15
-10
2.11 2.12 2.13 2.14 2.15 2.16 2.17
Frequency (GHz)
Return Loss (dB)
0 V
4 V
8 V 12 V
Insertion Loss Flatness vs.
Control Voltage — UMTS Band
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0
042681012
Flatness (dB)
Control Voltage (V)
Phase vs. Frequency and
Control Voltage — UMTS Band
0
2
4
6
8
10
12
14
2.11 2.12 2.13 2.14 2.15 2.16 2.17
Frequency (GHz)
Phase (Degrees)
8 V
11 V
0 V
4 V
3rd Order Intermod
Intercept vs. Control Voltage
RF
1
= 2.140 GHz, RF2 = 2.145 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 UMTS Base Stations AV133-315
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
-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
AV133
Pin Out (Bottom View)
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