SW-442 Datasheet, PDF (2/4 Pages) Tyco Electronics – GaAs SPDT Terminated Switch DC - 3.0 GHz

SW-442
GaAs SPDT Terminated Switch
DC - 3.0 GHz
Rev. V4
Electrical Specifications: T_A = 25°C, Z₀ = 50 Ω ³, V_CTL = -3V (unless otherwise specified)
Parameter
Test Conditions
Units Min. Typ. Max.
Insertion Loss⁴
DC-1 GHz
1-2 GHz
2-3 GHz
dB
—
0.5
0.7
dB
—
0.8
1.0
dB
—
1.1
1.25
Isolation
DC-1 GHz
1-2 GHz
2-3 GHz
dB
36
38
—
dB
25
28
—
dB
21
22
—
VSWR
DC-2 GHz
2-3 GHz
Ratio
—
1.4:1 1.5:1
Ratio
—
1.6:1 1.7:1
P_1dB (2.7 V supply)
500 MHz - 3 GHz
dBm
—
24
—
P_1dB (5 V supply)
500 MHz - 3 GHz
dBm
—
28
—
IP₂ (2.7 V supply)
2-Tone 900 MHz, 5 MHz spacing, 10 dBm each tone dBm
—
80
—
IP₃ (2.7 V supply)
2-Tone 900 MHz, 5 MHz spacing, 10 dBm each tone dBm
—
50
—
T_rise, T_fall
T_on, T_off
Transients
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, 50% Control to 10% RF
In-Band
nS
—
40
—
nS
—
60
—
mV
—
10
—
Control Current
VCTL = -3V
µA
—
6
15
3. External DC blocking capacitors are required on all RF ports when using positive voltage control.
4. 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.
Absolute Maximum Ratings ^5,6
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
5. Exceeding any one or combination of these limits may cause
permanent damage to this device.
6. M/A-COM does not recommend sustained operation near
these survivability limits.
Truth Table
Mode
(Control)
V1
V2
RFC -
RF1
RFC -
RF2
Positive⁷
0 + 0.2 V
+2.5 to +8
V
+2.5 to +8
V
0 + 0.2 V
On
Off
Off
On
Negative⁸
0 + 0.2 V
-2.5 to -8 V
-2.5 to -8 V
0 + 0.2 V
Off
On
On
Off
7. External DC blocking capacitors are required on all RF ports
and GND. GND capacitors can be used with positive control
voltage to resonate lead inductance for improved isolation.
8. If negative control is used, DC blocking capacitors and GND
capacitors are not required.
2
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