DATA SHEET SKY13251-349, SKY13251-349LF: SP3T Switch for Bluetooth and 802.11b, g Applications Simplified Block Diagram 802.11b, g RF3 V 3 Bluetooth Zigbee TDMA/GSM/EDGE CDMA/WCDMA Other short-range wireless applications RFC RF2 Features V 1 Positive low voltage control (0/+2.4 V) Low insertion loss (<0.5 dB 2.5 GHz) High isolation RF2, RF3 paths (29 dB 2.5 GHz RF1 V 2 and 27 dB 2.5 GHz) Miniature QFN-8 lead exposed paddle 2 x 2 mm PHEMT process Skyworks offers lead (Pb)-free, RoHS (Restriction of NEW Hazardous Substances)-compliant packaging. Available lead (Pb)-free and RoHS-compliant MSL-1 260 C per JEDEC J-STD-020 Description The SKY13251-349 is a PHEMT GaAs IC SP3T switch in a 2 x 2 mm QFN-8E package. The high isolation, low loss, small size and low cost features make this switch ideal for isolating Bluetooth from 802.11b, g and designs that require combining TDMA, GSM, EDGE, CDMA, WCDMA with other short-range wire- less applications. This switch is also available in a lead (Pb)-free package that is fully compliant with current RoHS requirements. The SKY12351-349 employs an asymmetrical design for improved performance as a transmit-receive switch. The path between the RF common (RFC) and RF1 is optimized for low loss transmit use, while the remaining two paths, RFC to RF2 and RFC to RF3, are optimized to produce higher isolation in receiver signal paths. A fully populated evaluation board is available. SSkkyywwoorrkkss SSoolluuttiioonnss,, IInncc.. PPhhoonnee 778811 337766--33000000 FFaaxx 778811 337766--33110000 ssaalleess sskkyywwoorrkkssiinncc..ccoomm wwwwww..sskkyywwoorrkkssiinncc..ccoomm 220000660099 RReevv.. EE SSkkyywwoorrkkss PPrroopprriieettaarryy IInnffoorrmmaattiioonn PPrroodduuccttss aanndd PPrroodduucctt IInnffoorrmmaattiioonn aarree SSuubbjjeecctt ttoo CChhaannggee WWiitthhoouutt NNoottiiccee.. AApprriill 1100,, 22000077 1DATA SHEET SKY13251-349, SKY13251-349LF Electrical Specifications at 25 C (0, +3 V) Z = 50 , unless otherwise noted 0 Parameter Condition Frequency Min. Typ. Max. Unit Insertion loss RFC-RF1 LF1.0 GHz 0.35 0.40 dB 1.02.0 GHz 0.40 0.50 dB 2.03.0 GHz 0.45 0.60 dB RFC-RF2, RF3 LF1.0 GHz 0.35 0.40 dB 1.02.0 GHz 0.50 0.60 dB 2.03.0 GHz 0.60 0.70 dB Isolation RFC-RF1 LF1.0 GHz 22 24 dB 1.02.0 GHz 15 18 dB 2.03.0 GHz 12 15 dB RFC-RF2, RF3 LF1.0 GHz 25 29 dB 1.02.0 GHz 23 27 dB 2.03.0 GHz 23 27 dB Return loss RFC-RF1 LF1.0 GHz 24 dB (insertion loss state) 1.02.0 GHz 25 dB 2.03.0 GHz 25 dB RFC-RF2, RF3 LF1.0 GHz 22 dB 1.02.0 GHz 19 dB 2.03.0 GHz 20 dB LF = low frequency. The low frequency limit is set by the value of the DC blocking capacitors used external to the part. Operating Characteristics at 25 C (0, +3 V) Z = 50 , unless otherwise noted 0 Parameter Condition Frequency Min. Typ. Max. Unit Switching characteristics Rise 10% to 90% RF 50 ns Fall 90% to 10% RF 25 ns On 50% V to 90% RF 50 ns CTL Off 50% V to 10% RF 50 ns CTL Input power for -1.0 dB compression V = 0/3 V 0.53 GHz 25 dBm CTL Intermodulation intercept point (IP3) Two-tones 900 MHz, 5 MHz spacing 0.53 GHz 46 dBm +10 dBm each tone Control voltages High 2.3 5.5 V Low 0 0.2 V Control port input current V = 3 V 100 A CTL V = 0 V 20 A CTL Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 April 10, 2007 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice. 200609 Rev. E