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| HWS419 ! Features * Combination of 1 DPDT and 2 SPDT switches * Low Insertion Loss : 1.30dB @ 2.50GHz * * * * * * ! July 2004 V1 QFN16L (4 x 4 mm) 1.55dB @ 5.85GHz Isolation: 26dB @ 2.50GHz 19dB @ 5.85GHz Flexible selection of 2.5/5.8GHz Tx/Rx ports Low DC Power Consumption Miniature QFN16L (4x4 mm) Plastic Package PHEMT Process Different Logic Version of HWS379 Description The HWS419 is a GaAs PHEMT MMIC DP4T switch operating at DC-6GHz in a low cost miniature QFN16L (4 x 4 mm) plastic package. The HWS419 combines one DPDT switch and two SPDT switches in a single IC and features low insertion loss and high isolation with very low DC power consumption. This switch can be used in IEEE 802.11a/b/g WLAN systems for combination of transmit/receive and antenna diversity functions. Two antenna ports can be selected for antenna diversity function and four RF ports can be arbitrary chosen for 2.5GHz band or 5.85GHz band as transmit/receive functions. Electrical Specifications at 25 with 0, +3V Control Voltages C Parameter Insertion Loss ANT ports to RF ports Isolation (SPDT part) Ex: ANT1 to RF2 when ANT1 to RF1 on Isolation (DPDT part) Ex: ANT2 to RF1 when ANT1 to RF1 on Return Loss Input Power for One dB Compression Control Current Test Conditions 0.01-6.00 GHz 2.40-2.50GHz 5.15-5.85GHz 0.01-6.00 GHz 2.40-2.50GHz 5.15-5.85GHz 0.01-6.00 GHz 2.40-2.50GHz 5.15-5.85GHz 0.01-6.00 GHz 2.40-2.50GHz 5.15-5.85GHz 2.00-6.00GHz @0/+3.0V Min. Typ. 1.60 1.30 1.55 25 26 27 19 27 19 12 20 15 30 30 300 Max. 1.50 1.85 Unit dB dB dB dB dB dB dB dB dB dB dB dB dBm A 24 17 Note: All measurements made in a 50 ohm system with 0/+3.0V control voltages, unless otherwise specified. Hexawave Inc. 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. HWS419 ! Typical Performance Data with 8pF Capacitors @ +25C Insertion Loss vs Frequency -0.8 -1.0 -1.2 -1.4 -1.6 -1.8 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Frequency(GHz) 5.5 6.0 1 16 15 14 13 12 11 10 9 5 6 7 8 B B B ! July 2004 V1 Absolute Maximum Ratings Parameter RF Input Power Control Voltage Operating Temperature Storage Temperature Absolute Maximum +32dBm @ +3V +6V -40 to +85C C -65 to +150 C C Insertion Loss(dB) Pin Out (Top View) Isolation vs Frequency -10 -15 Isolation(dB) -20 -25 -30 -35 -40 2.0 2.5 3.0 SPDT part DPDT part B 2 3 B 4 3.5 4.0 4.5 5.0 Frequency(GHz) 5.5 6.0 Note: 1. DC blocking capacitors CB=8pF are required on all RF ports. 2. Exposed pad in the bottom must be connected to ground by via holes. Return Loss vs Frequency -5 -10 Return Loss(dB) -15 -20 -25 -30 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Frequency(GHz) Logic Table for Switch On-Path VC1 0 1 0 1 VC3 1 0 1 0 VC2 1 1 0 0 VC4 0 0 1 1 ANT1 ANT2 RF1 RF4 RF2 RF3 RF4 RF1 RF3 RF2 `1' = +3V to +5V `0' = 0V to +0.2V Hexawave Inc. 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. B HWS419 ! Application Information Simplified Application Block Diagram Between HWS419 and WLAN 802.11 a/b/g RFIC Antenna Select Antenna SelectInv VC1 VC3 VC2 Band Select Band SelectInv VC4 RF1 RF2 HB_RX RF3 HB_TX RF4 LB_TX HWS419 DP4T Switch WLAN 802.11a/b/g RFIC LB_RX ! July 2004 V1 ANT2 ANT1 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(2.5GHz band) receiving port and HB_TX stands for high-band(5.85GHz 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 0 1 1 0 1 0 VC2 (BandSelect) 1 1 0 0 VC4 (BandSelectInv) 0 0 1 1 ANT1 RF1(LB_RX) RF4(LB_TX) RF2(HB_RX) RF3(HB_TX) ANT2 RF4(LB_TX) RF1(LB_RX) RF3(HB_TX) RF2(HB_RX) Hexawave Inc. 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. HWS419 ! Application Information (Continued) Simplified Application Block Diagram Between HWS419 and WLAN 802.11 a/b/g RFIC Antenna Select Antenna SelectInv VC1 VC3 VC2 Band Select Band SelectInv VC4 RF1 RF2 LB_RX RF3 LB_TX RF4 HB_TX HWS419 DP4T Switch WLAN 802.11a/b/g RFIC HB_RX ! July 2004 V1 ANT2 ANT1 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(2.5GHz band) receiving port and HB_TX stands for high-band(5.85GHz 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 0 1 1 0 1 0 VC2 (BandSelect) 1 1 0 0 VC4 (BandSelectInv) 0 0 1 1 ANT1 RF1(HB_RX) RF4(HB_TX) RF2(LB_RX) RF3(LB_TX) ANT2 RF4(HB_TX) RF1(HB_RX) RF3(LB_TX) RF2(LB_RX) Hexawave Inc. 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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