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| Preliminary PHEMT GaAs IC Dual Band Dual TX/RX Diversity Switch AS161-86 Features Six RF Ports Ideal for Dual PA Line-Ups Ideal for Dual RX Systems Differential Biasing for High Linearity MSOP-10 PIN 10 PIN 1 INDICATOR 0.118 (3.00 mm) 0.006 (0.15 mm) 0.193 (4.90 mm) 0.006 (0.15 mm) PIN 1 0.034 (0.86 mm) 0.004 (0.10 mm) 0.118 (3.00 mm) 0.006 (0.15 mm) 8-16 0-6 0.043 (1.09 mm) MAX. 0.022 (0.55 mm) 0.006 (0.15 mm) Description The AS161-86 PHEMT FET IC is a dual transfer switch. It is ideal for dual band application where TX/RX diversity is required. The switch has 4 control lines that may be positive, negative or a combination of both (differential biasing). This switch is designed for commercial wireless applications such as GSM, DCS and PCS systems. It requires DC blocks on the RF ports when positive voltage is used. 0.0197 (0.500 mm) BSC 0.009 (0.23 mm) REF. 0.006 (0.15 mm) MAX. 0.002 (0.05 mm) MIN. Electrical Specifications at 25C (+2.75 V, -4.5 V) Parameter Insertion Loss Condition TX1-Ant. 1, Ant. 2 TX2-Ant. 1, Ant. 2 RX1, RX2-Ant. 1 RX1, RX2-Ant. 2 Isolation RX1, RX2-Ant. 1 (During TX Mode) RX1, RX2-Ant. 2 (During TX Mode) VSWR Insertion Loss States Frequency 0.5-1.0 GHz 1.0-2.0 GHz 0.5-1.0 GHz 1.0-2.0 GHz 0.5-1.0 GHz 1.0-2.0 GHz 0.5-1.0 GHz 1.0-2.0 GHz 0.5-1.0 GHz 1.0-2.0 GHz 0.5-1.0 GHz 1.0-2.0 GHz 0.5-1.0 GHz 1.0-2.0 GHz 20 14 14 10 Min. Typ. 0.60 1.35 0.65 1.35 0.65 1.40 0.75 1.50 23 17 17 12 1.25:1 1.45:1 Max. 0.70 1.45 0.75 1.45 0.75 1.50 0.85 1.60 Unit dB dB dB dB dB dB dB dB dB dB dB dB Operating Characteristics at 25C (+2.75 V, -4.5 V) Parameter Switching Characteristics Condition Rise, Fall (10/90% or 90%/10% RF) On, Off (50% CTL to 90%/10% RF) Video Feedthru For Two-tone Input Power +13 dBm 34 dBm @ 900 MHz VLow = -5 < VLow < -2.75 V @50 A Typ. VHigh = -.2 < VHigh < +5 V @ 50 A Typ. Differential = 2.75 < (VHigh - VLow) < 10 V @ 100 A Typ. Frequency Min. Typ. 50 100 50 50 65 Max. Unit nS nS mV dBm dBc Intermodulation Intercept Point (IP3) 2nd and 3rd Harmonic Control Voltages Skyworks Solutions, Inc. [978] 241-7000 * Fax [978] 241-7906 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 3/99A 1 PHEMT GaAs IC Dual Band Dual TX/RX Diversity Switch AS161-86 Typical Performance Data (+2.75 V, -4.5 V) 1.6 1.4 1.2 1.6 1.4 1.2 Loss (dB) 1.0 0.8 0.6 0.4 0.2 0 0 0.5 1.0 1.5 2.0 TX2 TX1 Loss (dB) 1.0 0.8 Ant. 2 Ant. 1 0.6 0.4 0.2 0 0 0.5 1.0 1.5 2.0 Frequency (GHz) Frequency (GHz) TX-Ant. Insertion Loss 40 35 RX-Ant. Insertion Loss Truth Table TX1-Ant. 1 TX1-Ant. 2 TX2-Ant. 1 TX2-Ant. 2 RX1-Ant. 2 RX1-Ant. 1 RX2-Ant. 2 RX2-Ant. 1 VHigh VLow VLow VLow Ins. Loss Isol. Isol. Isol VLow VHigh VLow VLow Isol. Ins. Loss Isol. Isol. VLow VLow VHigh VLow Isol. Isol. Ins. Loss Isol. VLow VLow VLow VHigh Ant. 2 Isol. Isol. Isol. Ins. Loss V1 V2 V3 V4 Isolation (dB) 30 25 Ant. 1 20 15 10 5 0 0 0.5 1.0 1.5 2.0 Pin Out 10 2 Frequency (GHz) TX1 V1 ANT. 1 V3 TX2 RX1 V2 ANT. 2 V4 RX2 1 9 RX-Ant. Isolation 3 8 4 7 5 6 Switch Schematic Ant. 2 V2 V1 V4 V3 TX1 RX1 TX2 RX2 V1 V2 V3 V4 Ant. 1 2 Skyworks Solutions, Inc. [978] 241-7000 * Fax [978] 241-7906 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 3/99A |
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