RoHS
Compliant
SPDT High Isolation Terminated Switch
0.01 - 3.0 GHz
Features
MASWSS0178
V3
Functional Block Diagram
• 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
• 100% Matte Tin Plating over Copper
• Halogen-Free “Green” Mold Compound
• 260°C Reflow Compatible
• RoHS* Compliant Version of MASWSS0024
Description
The M/A-COM MASWSS0178 GaAs monolithic
switch provides high isolation in a lead-free, plastic
surface mount package.
Pin Configuration 2
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.
M/A-COM fabricates the MASWSS0178 using a
1.0-micron gate length MESFET process. The
process features full chip passivation for
performance and reliability.
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.
Pin
Function
Pin
Function
1
Control 1
5
RF Port 2
2
Control 2
6
Ground
3
RF Common
7
Ground
4
Ground
8
RF Port 1
2. The exposed pad centered on the package bottom must be
connected to RF and DC ground.
Absolute Maximum Ratings 3,4
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 does not recommend sustained operation near
these survivability limits.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
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.
RoHS
Compliant
SPDT High Isolation Terminated Switch
0.01 - 3.0 GHz
MASWSS0178
V3
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
dB
dB
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
dB
dB
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
dB
dB
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
—
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
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.
RoHS
Compliant
SPDT High Isolation Terminated Switch
0.01 - 3.0 GHz
MASWSS0178
V3
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
0.0
0.5
1.0
1.5
2.0
2.5
0.5
1.0
1.5
2.0
2.5
3.0
3.0
Frequency (GHz)
Frequency (GHz)
Isolation
Lead-Free MSOP-8-EP†
80
Isolation (dB)
60
40
20
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
†
Reference Application Note M538 for lead-free solder reflow
recommendations.
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.
RoHS
Compliant
SPDT High Isolation Terminated Switch
0.01 - 3.0 GHz
MASWSS0178
V3
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
0
0.1
0.2
0.3
0.4
0.5
Frequency (GHz)
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
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.