ALPHA AV133-315 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
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
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
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