Preliminary
HIP3™ Variable Attenuator
for AMPS and GSM Base Stations
AV131-315
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 AMPS and GSM
Base Stations
Description
The AV131-315 is a voltage controlled variable attenuator
from Skyworks’ series of HIP3™ components. It is
specifically designed and specified for use as a wide
dynamic range low distortion attenuator for AMPS and
GSM base station applications centered at 881.5 MHz and
942.5 MHz. The AV131-315 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 at 1.6 mA typical control current at
maximum attenuation. The AV131-315 is packaged in a
small outline LGA (Land Grid Array) surface mount
package with the internal elements affixed to an organic
BT substrate.
Electrical Specifications at 25°C
Parameter
AMPS Frequency Range (BW)
GSM Frequency Range (BW)
Control Voltage (C
V
) Range
Insertion Loss in BW
Attenuation Range
VSWR in BW
IP3
IM3
900/905 MHz, C
V
= 0 V
8 dBm
43
-70
C
V
= 0 V
At F
O
, C
V
= 10 V
At F
O
, C
V
= 12 V
18
23
Condition
Min.
869
925
0
Typ.
Max.
894
960
12
1.5
22
–
1.5
dBm
dBc
Unit
MHz
MHz
V
dB
dB
dB
Skyworks Solutions, Inc.
[781] 376-3000
•
Fax
[781] 376-3100
•
Email
sales@skyworksinc.com
•
www.skyworksinc.com
Specifications subject to change without notice. 3/03A
1
HIP3™ Variable Attenuator for AMPS and GSM Base Stations
AV131-315
Typical Performance Data
0
-5
0V
4V
0
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
-0.35
-0.40
12 V
-30
0.865
0.875
0.885
0.895
-0.45
-0.50
0
2
4
6
8
10
12
Loss (dB)
-10
-15
-20
-25
8V
Frequency (GHz)
Flatness (dB)
Control Voltage (V)
Insertion Loss vs. Frequency and
Control Voltage — AMPS Band
-10
-15
-20
0V
-25
-30
-35
0.865
8V
12 V
10
9
8
7
6
5
4
3
2
1
0.875
0.885
0.895
Insertion Loss Flatness vs.
Control Voltage — AMPS Band
Return Loss (dB)
4V
Phase (Degrees)
12 V
8V
4V
0.875
0.885
0.895
0V
0
0.865
Frequency (GHz)
Frequency (GHz)
Input/Output Return Loss vs. Frequency
and Control Voltage — AMPS Band
50
48
46
44
Phase vs. Frequency and
Control Voltage — AMPS Band
IP3 (dBm)
42
40
38
36
34
32
30
0
2
4
6
8
10
12
Control Voltage (V)
3rd Order Intermod vs. Control Voltage
RF
1
= 0.900 GHz, RF
2
= 0.905 GHz @ 8 dBm
2
Skyworks Solutions, Inc.
[781] 376-3000
•
Fax
[781] 376-3100
•
Email
sales@skyworksinc.com
•
www.skyworksinc.com
Specifications subject to change without notice. 3/03A
HIP3™ Variable Attenuator for AMPS and GSM Base Stations
AV131-315
0
-5
-10
4V
8V
0V
0
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
-0.35
-0.40
12 V
0.930
0.940
0.950
0.960
-0.45
-0.50
0
2
4
6
8
10
12
14
-15
-20
-25
-30
-35
0.920
Frequency (GHz)
Flatness (dB)
Loss (dB)
Control Voltage (V)
Insertion Loss vs. Frequency and
Control Voltage — GSM Band
-10
-15
12 V
10
9
8
7
6
5
4
3
2
1
-35
0.920
0.930
0.940
0.950
0.960
0
0.92
Insertion Loss Flatness vs.
Control Voltage — GSM Band
12 V
Return Loss (dB)
-20
0V
-25
-30
4V
8V
Phase (Degrees)
8V
0V 4V
0.93
0.94
0.95
0.96
Frequency (GHz)
Frequency (GHz)
Input/Output Return Loss vs. Frequency
and Control Voltage — GSM Band
50
48
2.0
Phase vs. Frequency and
Control Voltage — GSM Band
Total Current (mA)
46
44
1.5
IP3 (dBm)
42
40
38
36
34
32
30
0
2
4
6
8
10
12
14
1.0
0.5
0
0
3
6
9
12
Control Voltage (V)
Control Voltage (V)
3rd Order Intermod vs. Control Voltage
RF
1
= 0.900 GHz, RF
2
= 0.905 GHz @ 8 dBm
Total Current vs. Control Voltage
Skyworks Solutions, Inc.
[781] 376-3000
•
Fax
[781] 376-3100
•
Email
sales@skyworksinc.com
•
www.skyworksinc.com
Specifications subject to change without notice. 3/03A
3
HIP3™ Variable Attenuator for AMPS and GSM Base Stations
AV131-315
Pin Out (Bottom View)
Vcontrol
Vcontrol
GND
Connection Diagram
RF
IN/OUT
B
3
GND
A
3
IN/OUT
10 pF
C
1
GND B
1
A
1
IN/OUT
C
2
C
3
Vcontrol
10 pF
CONTROL
VOLTAGE
AV131
A
2
GND
RF
IN/OUT
10 pF
Vcontrol
Terminal No.
A
1
(Pin 1)
A
2
A
3
B
1
B
3
C
1
C
2
C
3
Terminal Name
IN/OUT
GND
IN/OUT
GND
GND
Vcontrol
GND
Vcontrol
0.126
(3.20 mm)
± 0.004
(0.10 mm)
0.063
(1.60 mm)
DETAIL A
0.193 (4.90 mm)
± 0.004 (0.10 mm)
10 pF
-315
8X 0.004
(0.100 mm)
0.107 (2.740 mm)
± 0.001
± 0.004 (0.100 mm)
(0.02 mm)
C
L
C
L
Absolute Maximum Ratings
Characteristic
RF Input Power
Control Voltage
Control Current
Operating Temperature
Storage Temperature
Maximum Reverse Diode Voltage
Electrostatic Discharge
Value
0.5 W CW, 4 W @ 12.5%
Duty Cycle
15 V
50 mA Each Diode
-40 to +85°C
-40 to +85°C
-10 V
+125 V
DETAIL
A
DETAIL B
0.030 (0.775 mm)
± 0.002 (0.050 mm)
PIN 1 INDICATOR
0.091 (2.32 mm)
± 0.003 (0.091 mm)
0.031 (0.800 mm)
± 0.002 (0.050 mm)
DETAIL C
DETAIL B
0.031 (0.800 mm)
± 0.002 (0.050 mm)
0.024 (0.600 mm)
± 0.002 (0.050 mm)
DETAIL C
MOLD
Note: Operating this device above any of these parameters may cause
irreversible damage.
0.078 (2.00 mm)
± 0.002 (0.05 mm)
0.013 (0.32 mm)
± 0.002 (0.4 mm)
SEATING
PLANE
4
Skyworks Solutions, Inc.
[781] 376-3000
•
Fax
[781] 376-3100
•
Email
sales@skyworksinc.com
•
www.skyworksinc.com
Specifications subject to change without notice. 3/03A
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