Changeover Switch. SW-425 Datasheet

SW-425 Switch. Datasheet pdf. Equivalent

Part SW-425
Description 3 Watt Cellular T/R and Antenna Changeover Switch
Feature 3 Watt Cellular T/R and Antenna Changeover Switch, DC - 3.0 GHz www.DataSheet4U.com SW-425 SW-425 .
Manufacture Tyco Electronics
Total Page 3 Pages
Datasheet
Download SW-425 Datasheet



SW-425
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SW-425
SW-425
3 Watt Cellular T/R and Antenna
Changeover Switch, DC - 3.0 GHz
Features
Low Cost Plastic SOT-26 Package
Low Insertion Loss <0.6dB @ 1900 MHz
Low Power Consumption <20µA @ +3V
Very High Intercept Point: 53 dBm IP3
Both Positive and Negative 2.5 to 8 V Control
For CDMA, W-CDMA, TDMA, GSM, PCS and DCS
Applications
SOT-26 Plastic Package
XX#Y
Description
M/A-COM’s SW-425 is a GaAs monolithic switch in a low cost
SOT-26 surface mount plastic package. The SW-425 is ideally
suited for applications where very low power consumption
(<10µA@5V), low intermodulation products and very small size
are required. Typical applications include Internal/External antenna
select switch for portable telephones and data radios. In addition,
because of its low loss, good isolation and inherent speed, the
SW-425 can be used as a conventional T/R switch or as an antenna
diversity switch. The SW-425 can be used in power applications up
to 3 watts in systems such as celluar PCS, CDMA, W-CDMA,
TDMA, GSM and other analog/digital wireless communications
systems.
The SW-425 is fabricated using a new 0.5 micron gate length GaAs
PHEMT process. The process features full chip passivation for
increased performance and reliability.
PIN1
Ordering Information
Part Number
Package
SW-425 PIN
SW-425TR
SOT-26 Plastic Package
Forward Tape and Reel 1
SW-425RTR
Reverse Tape and Reel1
Electrical Specifications TA = 25°C
1. Reference Application Note M513 for reel size information.
Parameter
Insertion Loss
Insertion Loss
Insertion Loss
Isolation
Isolation
Isolation
VSWR
P1dB (3V supply)
P1dB (5V supply)
Input IP2
Input IP3
Harmonics
2nd
3rd
Harmonics
Trise, Tfall
Ton, Toff
Transients
2nd
3rd
Gate Leakage Current
Test Conditions
DC - 1 GHz
1- 2 GHz
2 - 3 GHz
DC - 1 GHz
1 - 2 GHz
2 - 3 GHz
DC - 3 GHz
500 MHz - 3 GHz
500 MHz - 3 GHz
2-Tone, 5 MHz spacing,
0.9 GHz
+10 dBm (+13 dBm total) VCTL=3V
2-Tone, 5 MHz spacing,
0.9 GHz
+10 dBm (+13 dBm total) VCTL=3V
Pin 30 dBm |VCTL| = 3V
Pin 33 dBm |VCTL| = 5V
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, Control to 10% RF
In-Band
VCTL = 3 V
Units
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBc
dBc
nS
nS
mV
µA
Min.
18
13
10
32
34
62
48
65
45
65
65
Typ.
0.4
0.55
0.7
20
15
12
1.2:1
34
36
70
53
70
48
75
75
60
20
20
10
Max.
0.5
0.65
0.8
1.4:1
20
V2.00
M/A-COM Division of AMP Incorporated 3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
3 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.



SW-425
3 Watt Cellular T/R and Antenna Changeover Switch, DC - 3.0 GHz
Absolute Maximum Ratings1
Parameter
Max. Input Power (0.5 - 3.0 GHz)
3 V Control
5 V Control
Operating Temperature
Absolute Maximum
+36 dBm
+38 dBm
-40°C to +85°C
Storage Temperature
-65°C to +150°C
1. Exceeding any one or combination of these limits may cause
permanent damage.
Functional Diagram
VA RFC
VB
SW-425
Truth Table
Mode
(Control)
Positive1
Postitive/
Negative1,2
Negative3
Control
A
0±0.2V
+2.5 to +8V
-Vc±0.2V
+Vc
0±0.2V
-2.5V to -8V
Control
B
+2.5 to +8V
0±0.2V
+Vc
-Vc±0.2V
-2.5V to -8V
0±0.2V
RFC - RF1 RFC - RF2
Off On
On Off
Off On
On Off
On Off
Off On
1. External DC blocking capacitors are required on all RF ports.
39pF capacitors used for positive control voltage.
2. |-VCTL|, VCTL 8 V
3. If negative control is used, DC blocking capacitors are not required
on RF Ports.
Handling Procedures
The following precautions should be observed to avoid damage:
Static Sensitivity
Gallium arsenide Integrated Circuits are ESD sensitive and can
be damaged by static electricity. Proper ESD techniques should
be used when handling these devices.
PIN 1
RF1
GND
PIN Configuration
PIN No.
Function
1 RF1
2 GND
3 RF2
4 VB
5 RFC
6 VA
RF2
Description
RF in/out
RF Ground
RF in/out
V Control B
RF COMMON
V Control A
M/A-COM Division of AMP Incorporated 3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
3 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00





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