MASWSS0178
SPDT High Isolation Terminated Switch
0.01 - 3.0 GHz
Rev. V4
Functional Schematic 2
Features
• Positive Voltage Control: 0 / +5 V
• High Isolation: 55 dB @ 0.9 GHz
50 dB @ 1.9 GHz
• 50 Ω Internal Terminations
• Low Insertion Loss: 0.6 dB @ 0.9 GHz
0.7 dB @ 1.9 GHz
• Lead-Free MSOP-8-EP Package
• Halogen-Free “Green” Mold Compound
• 260°C Reflow Compatible
• RoHS* Compliant Version of MASWSS0024
Description
The MASWSS0178 GaAs monolithic switch provides
high isolation in a lead-free, plastic surface mount
package.
The MASWSS0178 is ideal for applications across a
broad range of frequencies including synthesizer
switching, transmit / receive switching, switch
matrices and filter banks in systems such as radio
and cellular equipment, PCS, GPS, and fiber optic
modules.
2. The exposed pad centered on the package bottom must be
connected to RF and DC ground.
Pin Configuration
Pin No.
Function
Pin No.
Function
1
Control 1
5
RF Port 2
2
Control 2
6
Ground
3
RF Common
7
Ground
4
Ground
8
RF Port 1
M/A-COM Technology fabricates the MASWSS0178
using a 1.0-micron gate length MESFET process.
The process features full chip passivation for
performance and reliability.
Absolute Maximum Ratings 3,4
Ordering Information 1
Part Number
Package
MASWSS0178
Bulk Packaging
MASWSS0178TR-3000
3000 piece reel
MASWSS0178SMB
Sample Board
1. Reference Application Note M513 for reel size information.
Parameter
Absolute Maximum
Input Power (0.5 - 3.0 GHz)
3 V Control
5 V Control
+30 dBm
+33 dBm
Operating Voltage
+8.5 Volts
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
3. Exceeding any one or combination of these limits may cause
permanent damage to this device.
4. M/A-COM Technology does not recommend sustained
operation near these survivability limits.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.43537383
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MASWSS0178
SPDT High Isolation Terminated Switch
0.01 - 3.0 GHz
Rev. V4
Electrical Specifications: TA = 25°C, VC = 0 V / 5 V, Z0 = 50 Ω 5
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Insertion Loss
0.01 - 0.5 GHz
0.5 - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
dB
—
—
—
—
0.5
0.6
0.7
0.75
—
0.7
0.8
—
Isolation
0.01 - 0.5 GHz
0.5 - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
dB
—
51
44
—
59
57
53
43
—
—
—
—
Return Loss
0.01 - 0.5 GHz6
0.5 - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
dB
—
—
—
—
20
20
20
20
—
—
—
—
Input IP2
2-Tone, 900 MHz, 5 MHz spacing
dBm
—
83
—
Input IP3
2-Tone, 900 MHz, 5 MHz spacing
dBm
—
43
—
Input P1dB Compression
VC = 0 V/5.0 V, 1 GHz
VC = 0 V/3.0 V, 1 GHz
dBm
—
—
29
17.5
—
—
Trise, Tfall
10% to 90% RF & 90% to 10% RF
ns
—
24
—
Ton, Toff
50% of VC to 10% / 90% RF
ns
—
15
—
Transients
In-band
mV
—
12
—
Control Current
VC = 5 V
µA
—
2
13
5. External DC blocking capacitors are required on all RF ports (47 pF capacitors are recommended). Use larger value capacitors for lower
frequency operation (e.g. use 10,000 pF capacitors to optimize insertion and return loss at frequencies below 50 MHz).
6. Terminated return loss is governed by blocking capacitors internal to the device; see applications plot.
Handling Procedures
Truth Table
V1
V2
RFC-RF1
RFC-RF2
0
1
Off
On
1
0
On
Off
Logic Level
Voltage Level
VLOW “0”
0 ± 0.2 V
VHIGH “1”
3.0 V to 8.0 V
Please observe the following precautions to avoid
damage:
Static Sensitivity
Gallium Arsenide Integrated Circuits are sensitive
to electrostatic discharge (ESD) and can be
damaged by static electricity. Proper ESD control
techniques should be used when handling these
devices.
2
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.43537383
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MASWSS0178
SPDT High Isolation Terminated Switch
0.01 - 3.0 GHz
Rev. V4
Typical Performance Curves
Return Loss
Insertion Loss
30
1.0
Insertion Loss (dB)
Return Loss (dB)
OUTPUT RETURN LOSS ("OFF" STATE)
25
20
INPUT RETURN LOSS ("ON" STATE)
15
0.8
0.6
0.4
0.2
0.0
10
0.5
1.0
1.5
2.0
2.5
3.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
F re que nc y ( G H z)
Frequency (GHz)
Lead-Free MSOP-8-EP†
Isolation
80
Isolation (dB)
60
40
20
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
F re que nc y ( G H z)
† Reference Application Note M538 for lead-free solder reflow
recommendations
Meets JEDEC moisture sensitivity level 1 requirements.
Plating is 100% matte tin over copper.
3
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.43537383
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MASWSS0178
SPDT High Isolation Terminated Switch
0.01 - 3.0 GHz
Rev. V4
Applications Section
Typical Performance Curves, Very Low Frequency, 10000 pF Blocking Capacitors
Insertion Loss vs. Frequency
Return Loss vs. Frequency
0.0
2.0
Return Loss - Insertion Path (dB)
-5.0
Insertion Loss (dB)
Return Loss - Termination (dB)
1.5
-10.0
-15.0
1.0
-20.0
0.5
-25.0
-30.0
0
0.1
0.2
0.3
0.4
0.5
Frequency (GHz)
0.0
0
0.1
0.2
0.3
0.4
0.5
Frequency (GHz)
Isolation vs. Frequency
70.0
65.0
Isolation (dB)
60.0
55.0
50.0
45.0
40.0
35.0
30.0
0
0.1
0.2
0.3
0.4
0.5
Frequency (GHz)
4
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
• India Tel: +91.80.43537383
• China Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.