HWS379 데이터 시트보기 (PDF) - Hexawave, Inc
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HWS379 Datasheet PDF : 4 Pages
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HWS379
GaAs DC-6 GHz DP4T Switch
September 2005 V4
Application Information (Continued)
Simplified Application Block Diagram Between HWS379 and WLAN 802.11 a/b/g RFIC
ANT2
ANT1
Antenna
Select
Band
Select
Antenna
SelectInv
Band
SelectInv
VC1 VC3 VC2 VC4
RF1
RF2
RF3
RF4
HWS379 DP4T Switch
WLAN 802.11a/b/g
RFIC
HB_RX
LB_RX
HB_TX
LB_TX
Note:
1. VC1 and VC3 are used for antenna selection, while VC2 and VC4 are used for band selection.
2. LB_RX stands for low-band(2.5 GHz band) receiving port and HB_TX stands for high-band(5.85 GHz
band) transmitting port.
3. RF paths between switch and RFIC may include amplifiers, filters, and baluns.
Logic Table for Switch On-Path
VC1
VC3
(AntennaSelect) (AntennaSelectInv)
0
1
VC2
(BandSelect)
1
1
0
1
0
1
0
1
0
0
VC4
(BandSelectInv)
0
0
1
1
ANT1
RF1(HB_RX)
RF3(HB_TX)
RF2(LB_RX)
RF4(LB_TX)
ANT2
RF3(HB_TX)
RF1(HB_RX)
RF4(LB_TX)
RF2(LB_RX)
Hexawave Inc. 2 Prosperity Road II, Science-Based Industrial 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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