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| Preliminary PHEMT GaAs IC High Power Transfer Switch DC-6 GHz AS218-000 Applications 0.012 (0.31 mm) 0.028 (0.72 mm) 0.032 (0.81 mm) 0.024 (0.60 mm) 0.029 (0.73 mm) 0.033 (0.84 mm) WLAN 802.11a, b, g Diversity Outline Drawing Features Operating Frequency DC-6 GHz Positive Low Voltage Control (0/+3 V Operation) Low Insertion Loss PHEMT Process 0.035 (0.90 mm) 0.027 (0.68 mm) 0.003 (0.08 mm) SQ. TYP. 0.005 (0.13 mm) 0.000 0.000 0.004 (0.11 mm) 0.009 (0.24 mm) Description The AS218-000 is a broadband transfer switch designed to combine T/R and antenna diversity switching functions on a single IC.The device is designed to handle high power and maintain high linearity at low control voltages. This low cost switch is ideal for Wi-Fi systems and is capable of covering both the 2.4 and 5 GHz bands. Dimensions in inches (mm). Chip thickness = 0.008 0.001 (0.20 0.025 mm). Electrical Specifications at 25C (0, +3 V) Parameter1 Insertion Loss2,4 Condition Ant 1, Ant 2 to TX, RX Frequency 0.10-6.00 GHz 2.40-2.50 GHz 5.15-5.85 GHz 0.10-6.00 GHz 2.40-2.50 GHz 5.15-5.85 GHz 0.10-6.00 GHz 2.40-2.50 GHz 5.15-5.85 GHz 17 32 17 Min. Typ. 1.6 1.2 1.4 19 37 19 10 15 20 Max. 1.8 1.4 1.6 Unit dB dB dB dB dB dB dB dB dB Isolation Ant 1, Ant 2 to TX, RX Return Loss3 Ant 1, Ant 2 to TX, RX Operating Characteristics at 25C (0, +3 V) Parameter 2nd and 3rd Harmonic P1 dB IIP3 Control Voltages 1. All measurements made in a 50 system. 2. Insertion loss changes by 0.003 dB/C. Condition 23 dBm Input @ 0,+3 V 20 dBm Per Tone 22 dBm Per Tone VLow = 0-0.2 V @ 20 A Max. VHigh = 3-5 V @ 200 A Max. Frequency 2-6 GHz 2-6 GHz 2-3 GHz 5-6 GHz Min. Typ. 63 33 54 47 Max. Unit dBc dBm dBm dBm 3. Return loss for insertion loss state. 4. TX and RX paths can be used interchangeably. Skyworks Solutions, Inc. [781] 376-3000 * Fax [781] 376-3100 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 2/03A 1 PHEMT GaAs IC High Power Transfer Switch DC-6 GHz AS218-000 Typical Performance Data (0, +3 V) 0 -0.2 -0.4 -0.6 -0.8 -1.0 -1.2 -1.4 -1.6 -1.8 -2.0 -2.2 -2.4 -2.6 -2.8 -3.0 0 1 2 3 4 5 6 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 0 1 2 3 4 5 6 Insertion Loss (dB) Frequency (GHz) Isolation (dB) Frequency (GHz) Insertion Loss vs. Frequency 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 0 1 2 3 4 5 6 Isolation vs. Frequency Pin Out (Top View) TX RX Return Loss (dB) V1 ANT 1 ANT 2 V2 Frequency (GHz) Return Loss vs. Frequency DC blocking caps required on RF lines for positive voltage operation. Bond pad metalization: gold. Backside metalization: none. Bond pad dimensions: 0.003 (0.075 mm) x 0.003 (0.075 mm). See application note, Handling GaAs MMIC Die. Truth Table V1 0 1 "1" = +3 to +5 V. "0" = 0 to +0.2 V. V2 1 0 Insertion Loss Path Ant 1 to TX, Ant 2 to RX Ant 2 to TX, Ant 1 to RX 2 Skyworks Solutions, Inc. [781] 376-3000 * Fax [781] 376-3100 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 2/03A |
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