Features
Broad Bandwith Specified up to 18 GHz
Usable up to 26 GHz
Integrated Bias Network
Low Insertion Loss / High Isolation
Rugged, Fully Monolithic, Glass Encapsulated Construction
Description
The MA4SW210B-1 and MA4SW310B-1 devices are
SP2T and SP3T broad band switches with integrated bias
networks utilizing M/A-COM's HMIC
TM
(Heterolithic
Microwave Integrated Circuit) Process, US Patent
5,268,310. This process allows the incorporation of silicon
pedestals that form series and shunt diodes or vias by
imbedding them in low loss, low dispersion glass. By using
small spacing between elements, this combination of silicon
and glass gives HMIC devices low loss and high isolation
performance with exceptional repeatability through low
millimeter frequencies.
Large bond pads facilitate the use of low inductance ribbon
bonds, while gold backside metalization allows for manual
or automatic chip bonding via 80Au/20Sn, Sn62/Pb36/Ag2
solders or electrically conductive silver epoxy.
Monolithic Pin Diode Switches with
Integrated Bias Network
MA4SW210B
-
1, MA4SW310B
-
1
V3.00
Chip Layout
MA4SW210B-1
MA4SW310B-1
Absolute Maximum Ratings
1
@T
A
= 25 C (unless otherwise
specified)
Parameter
Absolute Maximum
Operating Temperature
-65 C to +125 C
Storage Temperature
65 C to +150 C
RF C.W. Incident Power @ +/- 20mA
+30 dBm
D.C. Bias Current
+/- 40 mA
1. Exceeding any one or combination of these limits may cause
permanent damage.
Monolithic Pin Diode Switches w/Integrated Bias Network
MA4SW210B-1, MA4SW310B-1
V 3.00
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.
Visit www.macom.com for additional data sheets and product information.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
2
MA4SW210B-1 (SP2T)
Electrical Specifications @
T
A
= +25 C, +/ 20 mA Bias Current
Parameter
Frequency
Minimum
Nominal
Maximum
Units
Insertion Loss
6 GHz
0.60
1.0
dB
12 GHz
0.80
1.1
dB
18 GHz
1.25
2.25
dB
Isolation
6 GHz
47.5
51.4
dB
12 GHz
41.4
45.1
dB
18 GHz
36.2
40.4
dB
Input Return Loss
6 GHz
18.5
20.5
dB
12 GHz
12.9
18.2
dB
18 GHz
19.0
14.0
dB
Switching Speed
1
-
50.0
ns
MA4SW310B-1 (SP3T)
Electrical Specifications @
T
A
= +25 C, +/ 20 mA Bias Current
Parameter
Frequency
Minimum
Nominal
Maximum
Units
Insertion Loss
6 GHz
0.58
1.16
dB
12 GHz
0.76
1.38
dB
18 GHz
1.04
1.81
dB
Isolation
6 GHz
49.0
58.6
dB
12 GHz
41.4
48.5
dB
18 GHz
36.0
42.5
dB
Input Return Loss
6 GHz
16.3
19.9
dB
12 GHz
13.0
19.4
dB
18 GHz
10.9
17.3
dB
Switching Speed
1
-
50.0
ns
Operation of the MA4SW 210B-1
and 310B-1
Operation of the MA4SW210B-1 and MA4SW 310B-1 PIN
Switches is achieved by simultaneous application of DC
currents to the bias pads. The required levels for the
different states are shown in the tables below.
The control currents should be supplied by constant current
sources. The nominal 40
- 60
pull-up resistor voltage
@ J4 and J5 for 20 mA is usually -1V for +20 mA is
usually +1 V.
Driver Connections MA4SW210B-1
Control Level
(DC Current) at
Condition
of RF
Output
Condition
of RF
Output
J4
J5
J1 - J2
J1 - J3
-20 mA
+20 mA
Low Loss
Isolation
+20 mA
-20 mA
Isolation
Low Loss
1 Typical Switching Speed measured from 10% to 90% of detected RF signal driven by TTL compatible drivers using RC
Output Spiking Network, R = 50 200
, C = 390 560 pF.
Monolithic Pin Diode Switches w/Integrated Bias Network
MA4SW210B-1, MA4SW310B-1
V 3.00
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.
Visit www.macom.com for additional data sheets and product information.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
3
Handling Considerations
Cleanliness
These chips should be handled in a clean environment. Do
not attempt to clean chips after installation.
Electro-Static Sensitivity
The MA4SW210B-1 and MA4SW310B-1 Series PIN
Diode Switches are ESD, Class 1 sensitive. The proper
ESD handling procedures should be used.
Wire Bonding
Thermosonic wedge wire bonding using 0.003" x 0.00025"
ribbon or 0.001" diameter gold wire is recommended. A stage
temperature of 150
o
C and a force of 18 to 22 grams should be
used. Ultrasonic energy should be adjusted to the minimum
required. RF bonds should be as short as possible.
Mounting
These chips have TiPtAu back metal. They can be die
mounted with a gold-tin eutectic solder preform or
conductive epoxy. Mounting surface must be clean and flat.
Eutectic Die Attachment
An 80/20 gold-tin eutectic solder preform is recommended
with a work surface temperature of 255
o
C and a tool tip
temperature of 265
o
C. When hot gas is applied, the tool tip
temperature should be 290
o
C. The chip should not be
exposed to temperatures greater than 320
o
C for more than
20 seconds. No more than three seconds should be required
for attachment.
Electrically Conductive Epoxy Die
Attachment
Assembly should be preheated to 125-150
o
C. A minimum
amount of epoxy should be used, approximately 1 to 2 mils
thickness. A thin epoxy fillet should be visible around the
perimeter of the chip after placement. Cure epoxy per
manufacturer's schedule time-temperature schedule.
Driver Connections MA4SW310B-1
Control Level (DC Current) at
Condition of
RF Output
Condition of
RF Output
J5
J6
J1 - J2
J1 - J3
-20 mA
+20 mA
Low Loss
Isolation
+20 mA
-20 mA
Isolation
Low Loss
Condition of
RF Output
J1 - J4
Isolation
Isolation
J7
+20 mA
+20 mA
+20 mA
+20 mA
-20 mA
Isolation
Isolation
Low Loss
Monolithic Pin Diode Switches w/Integrated Bias Network
MA4SW210B-1, MA4SW310B-1
V 3.00
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.
Visit www.macom.com for additional data sheets and product information.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
4
Typical Performance Curves - MA4SW210B-1
Return Loss vs. Frequency
Insertion Loss vs. Frequency
Isolation vs. Frequency
-40
-35
-30
-25
-20
-15
-10
-5
0
0
2
4
6
8
10
12
14
16
18
20
22
24
26
FREQUENCY, GHz
RETURN LOSS, dB
-70
-60
-50
-40
-30
-20
-10
0
0
2
4
6
8
10
12
14
16
18
20
22
24
26
FREQUENCY, GHz
ISOLATION, dB
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
0
2
4
6
8
10
12
14
16
18
20
22
24
26
FREQUENCY, GHz
INSERTION LOSS, dB
Monolithic Pin Diode Switches w/Integrated Bias Network
MA4SW210B-1, MA4SW310B-1
V 3.00
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.
Visit www.macom.com for additional data sheets and product information.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
5
Typical Performance Curves - MA4SW310B-1
Return Loss vs. Frequency
Insertion Loss vs. Frequency
Isolation vs. Frequency
(MA4SW310B-1)
-40
-35
-30
-25
-20
-15
-10
-5
0
0
2
4
6
8
10
12
14
16
18
20
22
24
26
FREQUENCY, GHz
RETURN LOSS, dB
-70
-60
-50
-40
-30
-20
-10
0
0
2
4
6
8
10
12
14
16
18
20
22
24
26
FREQUENCY, GHz
ISOLATION, dB
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
0
2
4
6
8
10
12
14
16
18
20
22
24
26
FREQUENCY, GHz
INSERTION LOSS, dB
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