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HWS429
GaAs DC-3 GHz SPDT Terminated Switch
October 2005 V2
Features
* Low Insertion Loss : 0.40 dB @ 0.87 GHz
QFN12L (3 x 3 mm)
0.50 dB @ 2.5 GHz
* High Isolation: 55 dB @ 0.87 GHz
47 dB @ 2.5 GHz
* 50 or 75 Ohm Systems * Low DC Power Consumption * Miniature QFN12L (3x3 mm) Plastic Lead (Pb)
Free Package Compliant
* RoHS (Restrict of Hazardous Substances)
Description
The HWS429 is a GaAs SPDT terminated (non-reflective) switch operating at DC-3 GHz in a low cost QFN12L (3x3 mm) plastic lead (Pb) free package. The HWS429 features low insertion loss and high isolation with very low DC power consumption and can be used in both 50 ohm and 75 ohm systems. Typical applications include CATV and basestation systems for either SPDT or SPST functions.
Electrical Specifications at 25 with 0, +3V Control Voltages, 50 Ohm system C
Parameter Insertion Loss Isolation Return Loss Input Power for One dB Compression Input Third Order Intermodulation Intercept Point Switching Time Control Current Test Conditions DC-1.5 GHz 1.5-3.0 GHz DC-1.5 GHz 1.5-3.0 GHz DC-3.0 GHz 0.5-3.0 GHz 0.5-3.0 GHz 35 Min. Typ. 0.4 0.5 53 43 15 26 45 50 30 300 Max. Unit dB dB dB dB dB dBm dBm ns uA
0.8
Note: All measurements made in a 50 ohm system with related application circuits and 0/+3V control voltages, unless otherwise specified.
Hexawave Inc. 1F, 2 Prosperity Road II, Science Park, Hsinchu, Taiwan. TEL 886-3-578-5100 FAX 886-3-577-0512 http://www.hw.com.tw All specifications are subject to change without notice.
HWS429
GaAs DC-3 GHz SPDT Terminated Switch
October 2005 V2
Typical Performance Data With Application Circuit A @ +25 C
Insertion Loss vs Frequency
0.0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 0.0 0.5 1.0 1.5 Frequency(GHz) 2.0 2.5
Typical Performance Data With Application Circuit B @ +25 C
Insertion Loss vs Frequency
0.0 -0.2 -0.4 -0.6 -0.8 -1.0 1.0 1.5 2.0 2.5 3.0 Frequency(GHz) 3.5 4.0
Isolation vs Frequency
-30 -35
Isolation(dB)
Isolation vs Frequency
-20 -25
-45 -50 -55 -60 0.0 0.5 1.0 1.5 Frequency(GHz) 2.0 2.5
Isolation(dB)
-40
Insertion Loss(dB)
Insertion Loss(dB)
-30 -35 -40 -45 -50 1.0 1.5 2.0 2.5 3.0 Frequency(GHz) 3.5 4.0
Return Loss vs Frequency
0 -5 Return Loss (dB) -10 -15 -20 -25 -30 -35 0.0 0.5 1.0 1.5 2.0 2.5 Frequency (GHz)
RFC RF1, RF2 Off RF1, RF2 On
Return Loss vs Frequency
0 -5
Return Loss (dB)
RFC RF1, RF2 Off RF1, RF2 On
-10 -15 -20 -25 -30 -35
1.0 1.5 2.0 2.5 3.0 3.5 4.0 Frequency (GHz)
Hexawave Inc. 1F, 2 Prosperity Road II, Science Park, Hsinchu, Taiwan. TEL 886-3-578-5100 FAX 886-3-577-0512 http://www.hw.com.tw All specifications are subject to change without notice.
HWS429
GaAs DC-3 GHz SPDT Terminated Switch
October 2005 V2
Absolute Maximum Ratings
Parameter RF Input Power Control Voltage Operating Temperature Storage Temperature Absolute Maximum +32 dBm @ +5V +6V -40 to +85C C -65 to +150 C C
Logic Table for Switch On-Path
VC1 0 1 VC2 1 0 RFC-RF1 Insertion Loss Isolation RFC-RF2 Isolation Insertion Loss
`1' = +3V to +5V `0' = 0V to +0.2V
Pin Out (Top View)
VC1
12
RFC
11
VC2
10 9
GT1 1
GT3
GT2 2
8
GT4
RF1 3
4 5 6
7
RF2
GND
GND
Exposed pad in the bottom must be connected to ground by via holes.
Application Circuits
VC1 RFC VC2
C8
C5
GND
C9
12 1
C1
11
10 9
C2
2
C3
8
C4
RF1
C6
3 4 5 6
7
C7
RF2
Component Values: Circuit A C1, C2 47pF C3, C4 330pF C5, C6, C7 1000pF C8, C9 47pF
B 2pF 4pF 47pF 47pF Note: Circuit A and B are optimized for DC-1.5 GHz and 1.5-3.0 GHz, respectively.
Hexawave Inc. 1F, 2 Prosperity Road II, Science Park, Hsinchu, Taiwan. TEL 886-3-578-5100 FAX 886-3-577-0512 http://www.hw.com.tw All specifications are subject to change without notice.

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