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
HIP3TM Variable Attenuator
for UMTS Base Stations
Features
23 dB Attenuation Range
1.5 dB Insertion Loss, 1.5 SWR
012 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 HIP3TM 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 AV133-
315 employs a monolithic quadrature hybrid and a pair of
silicon PIN diodes to achieve the specified low distortion
performance. It operates from 012 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)
F
O
12.5 MHz
2110
2170
MHz
Control Voltage (C
V
) Range
0
12
V
Insertion Loss in BW
C
V
= 0 V
1.5
dB
Attenuation Range
At F
O
, C
V
= 12 V
23
dB
VSWR in BW
1.5
IP3
2140/2145 MHz, C
V
= 0 V
43
dBm
IM3
8 dBm
-70
dBc
Electrical Specifications at 25C
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
HIP3TM 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
0
4
2
6
8
10
12
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, RF
2
= 2.145 GHz @ 8 dBm
0
4
2
6
8
10
12
Control Voltage (V)
IP3 (dBm)
30
32
34
36
38
40
42
44
46
48
50
Total Current vs. Control Voltage
0
6
3
9
12
Control Voltage (V)
Total Current (mA)
0
0.5
1.0
1.5
2.0
Typical Performance Data
HIP3TM 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
C
1
C
2
C
3
A
1
A
2
A
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 +85C
Storage Temperature
-40 to +85C
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
C
1
C
2
C
3
A
1
A
2
A
3
IN/OUT
GND
IN/OUT
GND
GND
Vcontrol
Vcontrol
GND
AV133
Pin Out (Bottom View)
PDF 
ZIP