MASW-007221
GaAs SPDT Switch
DC - 3.0 GHz
Rev. V1
Electrical Specifications: TA = 25°C, VCTL = 0, -2.3 volts (unless otherwise specified) , Z0 = 50
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Insertion Loss 5
DC - 1 GHz
1 - 2 GHz
2 - 3 GHz
dB
—
0.35
0.5
dB
—
0.45
0.6
dB
—
0.56
0.8
Isolation
DC - 1 GHz
1 - 2 GHz
2 - 3 GHz
dB
20
22
—
dB
15
17
—
dB
10
12
—
VSWR
DC - 3 GHz
Ratio
—
1.2:1
1.4:1
P1dB (2.3V supply)
500 MHz - 3 GHz
dBm
—
21
—
P1dB (3V supply)
Input IP2
Input IP3
Trise, Tfall
Ton, Toff
500 MHz - 3 GHz
2-Tone 900 MHz, 5 MHz spacing (3.0 V)
2-Tone 900 MHz, 5 MHz spacing (3.0 V)
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, Control to 10% RF
dBm
—
27
—
dBm
—
81
—
dBm
—
52
—
ns
—
25
—
ns
—
25
—
Transients
In-Band
mV
—
25
—
Control Current
VCTL = -2.3 V
µA
—
4
15
4. External DC blocking capacitors are required on all RF ports when using positive voltage control.
5. Insertion loss can be optimized by varying the DC blocking capacitor value, e.g. 1000 pF for 100 MHz - 1 GHz, 39 pF for 0.5 GHz - 3 GHz.
Truth Table
Mode
(Control)
V1
V2
RFC - RFC -
RF1 RF2
Lead-Free SC-70 (SOT-363) †
0 ± 0.2 V +2.3 to +8 V Off
On
Positive 6
+2.3 to +8 V 0 ± 0.2 V
On
Off
0 ± 0.2 V -2.3 V to -8 V On
Off
Negative 7
-2.3 V to -8 V 0 ± 0.2 V
Off
On
6. External DC blocking capacitors are required on all RF ports.
1000 pF capacitors used for positive control voltage. For
higher frequency operation, smaller value DC blocking ca-
pacitors can be substituted.
7. If negative control is used, DC blocking capacitors are not
required on RF ports.
Qualification
Qualified to M/A-COM specification REL-201,
Process Flow –2.
Handling Procedures
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.
† Reference Application Note M538 for lead-free solder reflow
recommendations.
2
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