MA-COM MA4VAT904

High IIP3 PIN Diode Variable Attenuator
0.80-1.0 GHz
MA4VAT904-1061T
V2
Features
•
•
•
•
•
•
1.0 dB Insertion Loss, Typical
12 dB Return Loss, Typical
25 dB Attenuation, Typical
45 dBm IIP3, Typical ( 1MHz Offset, @ +0dBm Pinc )
SOIC-8 Surface Mount Package
RoHs Compliant
Extra Features
• Covers the following Bands:
• GSM
• AMPS
• Usable Bandwidth: 0.60 GHz to 1.20 GHz
• 1.5 dB Insertion Loss, Typical
• 1.8:1 VSWR, Typical
• 18.5 dB Attenuation, Typical
SOIC-8 PIN Configuration (Topview)
PIN
Function
Description and Applications
1
DC1
M/A-COM’s MA4VAT904-1061T is a HMIC PIN Diode
Variable Attenuator which utilizes an integrated 90
degree 3dB hybrid with a pair of Silicon PIN Diodes
to perform the required attenuation function as D.C.
Voltage (Current) is applied.
2
GND
3
GND
4
RFin/out
Symetrical as RF Input/Ouput
5
RFout/in
Symetrical as RF Input/Ouput
6
GND
7
GND
8
DC2
This device operates from 0 to 1.9 Volts at 1.89 mA
typical control current for maximum attenuation. The
user can add external biasing resistors to the bias
ports for higher voltage requirements as required.
M/A-COM’s MA4VAT904-1061T PIN Diode Variable
Attenuator is designed for AGC Circuit Applications
requiring:
• Lower Insertion Loss
• Lower distortion through attenuation
• Larger dynamic range for wide spread spectrum
applications
Comments
Absolute Maximum Ratings
@ +25 °C
Parameter
Maximum Ratings
Operating Temperature
-40 °C to +85 °C
Storage Temperature
-65 °C to +150 °C
Junction Temperature
+175 °C
RF C.W. Incident Power
+33 dBm C.W.
Reversed Current @ -30 V
50nA
Control Current
50 mA per Diode
Notes:
1. All the above values are at +25 °C, unless otherwise noted.
2. Exceeding these limits may cause permanent damage.
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
High IIP3 PIN Diode Variable Attenuator
0.80-1.0 GHz
MA4VAT904-1061T
V2
Electrical Specifications @ +25 °C
Parameter
Frequency Band
Unit
Min
Typ
Max
0.80 GHz—1.00 GHz
dB
-
1.0
1.2
Input Return Loss
dB
11
12
-
Output Return Loss
dB
11
12
-
P1dB
dBm
30
-
-
Input IP3
dBm
45
49
-
Control Voltage
V
-
0 V @ OuA
-
dB
18.5
24
-
Input Return Loss @ Max Attenuation
dB
15
21
-
Output Return Loss @ Max Attenuation
dB
15
21
-
Input IP3
dBm
36
39
-
Control Voltage @ Max Attenuation
V
-
1.9 V @ 1.89 mA
-
No DC Bias RF Parameter
Insertion Loss
DC Bias RF Parameter
Maximum Attenuation
0.80 GHz—1.00 GHz
Typical RF Performance Over Industry Designated RF Frequency Bands
Band
AMPS
GSM
Freq
I. Loss
Att.
R. Loss
IIP3
Phase
-Relative-
(MHz)
(dB)
(dB)
(dB)
(dBm)
(Degree)
RX
824-849
0.9
22
12
45
-15°
TX
869-894
0.9
22
12
45
RX
880-915
1.2
20
11
45
TX
925-960
1.2
20
11
45
-20°
Notes:
1. All are typical values only.
2. Relative phase is the measured Insertion Phase difference between Insertion Loss and 15 dB Attenuation. (Please refer
to the plots below)
2
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
High IIP3 PIN Diode Variable Attenuator
0.80-1.0 GHz
MA4VAT904-1061T
V2
Plots of Typical RF Characteristics @ +25 °C
Typical Insertion Loss & Attenuation Plot
Typical Attenuation vs Voltage Plot
MA4VAT904-1061
MA4VAT904-1061
Attenuation vs Control Voltage
Typical Attenuation
0
0
-5
Attenuation (dB)
Attenuation dB)
-5
-10
-15
-20
-25
-30
0.600
0.700
0.800
0.900
1.000
1.100
-10
-15
-20
-25
1.200
-30
Frequency (GHz)
0
0V/0mA
0.77V/0.28mA
0.93V/0.48mA
1.53V/1.28mA
1.77V/1.62mA
1.89V/1.80mA
0.5
1
1.5
2
2.5
Bias Voltage (V)
1.27V/0.93mA
800MHz
Typical Return Loss @ All Attenuation Levels Plot
900MHz
1000MHz
Typical IIP3 vs Attenuation Plot
MA4VAT904-1061
MA4VAT904-1061
Typical Input Return Loss
Typical IP3 vs Bias Voltage @900MHz
(1MHz Offset, +0dBm Pin)
0
70
-5
50
-15
IP3 (dBm)
Return Loss dB)
60
-10
-20
40
30
20
-25
10
-30
0.600
0.700
0.800
0.900
1.000
1.100
1.200
0
0.0
Frequency (GHz)
0V/0mA
0.77V/0.28mA
0.93V/0.48mA
1.27V/0.93mA
1.53V/1.28mA
1.77V/1.62mA
0.5
1.0
1.5
2.0
2.5
Bias Voltage (V)
1.89V/1.80mA
Typical Relative Phase Shift Per Attenuation (Voltage) Plot
MA4VAT904-1061
Relative Phase vs Control Voltage
For Reference ONLY:
• Insertion Loss
90
•
•
•
•
Relative Phase (Degree))
70
50
30
10
-10
= 0.00 V @ 0.00 mA
5dB Attenuation
= 0.94 V @ 0.49 mA
10dB Attenuation
= 1.26 V @ 0.93 mA
15dB Attenuation
= 1.50 V @ 1.22 mA
20dB Anttenuation = 1.77V @ 1.60 mA
-30
-50
-70
-90
0
0.5
1
1.5
2
2.5
Bias Voltage (V)
800MHz
900MHz
1000MHz
3
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
High IIP3 PIN Diode Variable Attenuator
0.80-1.0 GHz
MA4VAT904-1061T
V2
Package PIN Designation, External Components, and Equivalent Circuit
Cbias
RF I N/OUT
Lb ia s
C bl o ck
Control Curren t
Rbias
C bl o ck
Lb ia s
Cbias
RF OUT/ IN
External Bias Components
Rbias= 680 Ohms ( 1.66 V, @1.50 mA )
Lbias= 150 nH
Cbias =100 pF
Cblock =100 pF
4
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.