ETC SW-349

Preliminary Specifications
GaAs SPST Single Positive Control Matched Switch
0.5 - 1.5 GHz
SW-349
V3.00
Features
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SO-8
Single Supply Voltage +3 V to +5 V
Single Control +3 V to +5 V
Matched Input and Output
Low Distortion 47 dBm IP3 @ 0.5 GHz with +5 V
Low Power Consumption <10 mA @ 5 V typ.
Low Cost Plastic SOIC-8 Package
The SW-349 is a GaAs MMIC matched SPST switch in a low
cost plastic SOIC 8-lead package. This switch is designed
for high isolation from 0.5-1.5 GHz, with typical isolation
greater than 40 dB @ 0.9 GHz. The SW-349 requires external DC blocks on the RF ports. The SW-349 is ideally suited
for applications where very low power consumption (<10
mA @ 5 V) and low intermodulation products are required.
Typical applications include switching and blanking for
radio and cellular equipment, wireless LANs, GPS equipment and other RF control circuits.
The SW-349 is fabricated with a GaAs MMIC using a mature
1-micron process. The process features full chip passivation
for increased performance and reliability.
Test Conditions 1
500-1500 MHz
500 - 1500 MHz
750 - 960 MHz
VSWR
Trise, Tfall
Ton , Toff
Transients
1 dB Compression
Input IP2
Orientation
mark
PIN 1
.1890-.1968
(4.80-5.00)
-A-
.0532-.0688
(1.35-1.75)
0°-8°
-C.0040-.0098
(0.10-0.25)
.013-.020 TYP.
(0.33-0.51)
.050(1.27) BSC.
.0099-0.0196
x 45° Chamfer
(0.25-0.50)
.016-.050
(0.40-1.27)
.0075-0.0098
(0.19-0.25)
.010(0.25) M C A M B S
8- Lead SOP outline dimensions
Narrow body .150
(All dimensions per JEDEC No. MS-012-AA, Issue C)
Dimensions in ( ) are in mm.
Unless Otherwise Noted: .xxx = ± 0.010 (.xx = ± 0.25)
.xx = ± 0.02 (.x = ±0.5)
Ordering Information
Part Number
SW-349 PIN
SW-349TR
SW-349RTR
Package
SOIC 8-Lead Plastic
Foward Tape & Reel *
Reverse Tape & Reel *
*If specific reel size is required, consult factory for part number
assignment.
Electrical Specifications, TA = +25°C
Parameter
Insertion Loss
Isolation
.2284-.2440
(5.80-6.20)
.010(0.25) M B M
.1497-.1574
(3.80-4.00)
-B-
.004 (0.10)
Description
Input IP3
PIN 8
Units
dB
dB
dB
Min.
20
35
Typ.
0.9
Max.
1.2
38
500 - 750 MHz
750 - 960 MHz
960 - 1500 MHz
10%-90% RF, 90% - 10% RF
50% Control to 90% RF, 50% Control to 10% RF
In Band
Vctl = +5 V
500 MHz
Vctl = +3 V
500 MHz
Vctl = +5 V 2
Vctl = +3 V 2
µS
µS
mV
dBm
dBm
dBm
dBm
1.5:1
1.3:1
1.2:1
1
2
20
26
20
47
44
Vctl = +5 V 2
Vctl = +3 V 2
dBm
dBm
60
56
1.7:1
1.4:1
1.3:1
1. All measurements are in a 50 ohm system. DC blocks are required on RF1 and RF2. Vin Low = 0V ±0.2V, Vin High = VS ±0.2V, VS = +3 to +5V.
For inputs under 20 dBm, hot switching can be used.
2. Two tone +5 dBm each (+8 dBm total) F1 = 900 MHz, F2 = 900.05 MHz.
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North America:
1
Tel. (800) 366-2266
Fax (800) 618-8883
■
Asia/Pacific: Tel. +81 3 3263 8761
Fax +81 3 3263 8769
■
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
GaAs SPST Single Positive Control Matched Switch
SW-349
V3.00
Absolute Maximum Ratings1
Parameter
Functional Schematic1
Absolute Maximum
RF Input Power @ +3 V
RF Input Power @ +5 V
Supply Voltage (Vs)
Control Voltage (Vctl)
Operating Temperature
Storage Temperature
+23 dBm
+29 dBm
+8 V
Vs+0.2 V
-40°C to +85°C
-65°C to +150°C
RF2
8
GND
7
1
GND
2
3
4
Vs
RF1
GND
GND
5
Vctl
6
1. Operation of this device above any one of these parameters
may cause permanent damage.
Truth Table
Control Input
+Vctl
Vin Low
Vin High
RF1-RF2
ON
OFF
2. DC Blocks are required on RF1 and RF2.
Vin Low = 0 to +0.2 V @ 5 µA typ.
Vin High = Vs ± 0.2 V @ 10 µA typ.
Typical Performance @ +25°C
OUTPUT VSWR vs FREQUENCY
1.6
55
1.5
50
1.4
VSWR
ISOLATION (dB)
ISOLATION vs FREQUENCY
60
45
40
Off
1.2
35
1.1
30
1.0
25
0.5
0.7
0.9
1.1
1.3
1.5
0.5
0.7
0.9
INSERTION LOSS vs FREQUENCY OVER TEMPERATURE
1.0
1.5
0.8
1.4
VSWR
1.6
+85°C
-40°C
+25°C
0.4
1.3
1.5
1.3
1.5
INPUT VSWR vs FREQUENCY
1.2
0.6
1.1
FREQUENCY (GHz)
FREQUENCY (GHz)
INSERTION LOSS (dB)
On
1.3
Off
1.3
1.2
On
0.2
1.1
0.0
1.0
0.50
0.75
1.00
1.25
1.50
0.5
0.7
0.9
FREQUENCY (GHz)
1.1
FREQUENCY (GHz)
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
2
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
■
Asia/Pacific: Tel. +81 3 3263 8761
Fax +81 3 3263 8769
■
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020