Preliminary GaAs IC Reflective SPDT DC–6 GHz AS209-321 Features ■ Single Broadband Design Covers 802.11a, 802.11b and 3.5 GHz Fixed Wireless Applications ■ Positive Voltage Control (0, +5 V) ■ Low Insertion Loss Thru 6 GHz ■ High Linearity ■ QFN-12 3 x 3 mm Package ■ Low Cost Description The AS209-321 is a GaAs PHEMT reflective SPDT switch that has been designed for WLAN TX/RX applications. This device has been optimized to provide excellent performance from DC–6 GHz. The AS209-321’s high frequency, low loss and high linearity make it an ideal choice for 802.11a, 802.11b and 3.5 GHz fixed wireless LAN applications. Absolute Maximum Ratings Characteristic Value RF Input Power 1 W Max. > 500 MHz Control Voltage -0.2 V, +6 V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C Electrical Specifications at 25°C (0, +5 V) Parameter Frequency Min. Typ. Max. Unit 0.7 0.8 1.1 1.2 1.0 1.2 1.4 1.5 dB dB dB dB Insertion Loss DC–2 DC–3 DC–4 DC–6 GHz GHz GHz GHz Isolation DC–2 DC–3 DC–4 DC–6 GHz GHz GHz GHz 30 28 25 20 34 32 29 24 dB dB dB dB Return Loss (On State) DC–2 DC–3 DC–4 DC–6 GHz GHz GHz GHz 15 12 10 10 18 15 13 13 dB dB dB dB Min. Typ. Operating Characteristics at 25°C (0, +5 V) Parameter Condition Switching Characteristics Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru Input Intermodulation Intercept Point (IIP3) 0/+5 V Control Voltages VC1 or VC2 = “0” VC1 or VC2 = “1” with @ 200 µA Max. Frequency 1–4 GHz Unit ns ns mV 46 dBm 0 3.5 Alpha Industries, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 1/02A Max. 30 50 25 0.5 5.0 V V 1 GaAs IC Reflective SPDT DC–6 GHz AS209-321 Typical Performance Data (0, +5 V, CBL = 47 pF) 0 0 -0.50 -10 -0.75 Isolation (dB) Insertion Loss (dB) -0.25 -1.00 -1.25 -1.50 -1.75 -2.00 -20 J2 -30 -40 -2.25 -2.50 -50 0 1 2 3 4 5 6 7 0 2 3 4 5 6 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Isolation vs. Frequency 0 49 -5 -10 J2 -15 48 47 46 J1 -20 45 1 2 3 4 5 6 3.1 7 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Frequency (GHz) Frequency (GHz) Return Loss vs. Frequency Input IP3 vs. Frequency VC2 J1–J2 J1–J3 0 1 Insertion Loss Isolation 1 0 Isolation Insertion Loss VC1 VC1 J1 Pin Out CBL Truth Table N/C 0 VC2 J2 N/C CBL CBL N/C N/C N/C N/C N/C DC blocks required. CBL = 47 pF for operation >500 MHz. 2 7 50 Input IP3 (dBm) Return Loss (dB) 1 Alpha Industries, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 1/02A J3 GaAs IC Reflective SPDT DC–6 GHz AS209-321 Evaluation Board Layout QFN-12 0.008 (0.20 mm) SEATING PLANE 0.118 (3.00 mm) J1 PIN 1 INDICATOR 0.001 (0.02 mm) 0.118 (3.00 mm) SPDT 0.030 (0.75 mm) ± 0.002 (0.05 mm) Ground Via (Typical) VC1 VC2 0.029 (0.73 mm) EXPOSED PAD PIN 1 INDICATOR 1.250 0.018 J3 J2 0.057 (1.45 mm) SQ. + 0.004 (0.10 mm) - 0.006 (0.15 mm) 0.009 (0.23 mm) + 0.003 (0.07 mm) - 0.002 (0.05 mm) 0.0196 (0.50 mm) BSC SK39507 Rev 2 0.738 Board material: 10 mil FR4. Typical S-Parameters (Control Voltage 0/+5 V) Insertion Loss State # GHZ S DB R 50 Isolation State # GHZ S DB R 50 Freq. (GHz) S11 S11a S21 S21a S12 S12a S22 S22a S11 S11a S21 S21a S12 S12a S22 S22a 0.50 -5.5 -90.1 -1.63 -2.6 -1.63 -1.9 -5.6 -122.6 -0.8 -98.7 -38.4 6.6 -39.5 10.0 -5.5 -122.4 0.95 -11.1 -136.0 -0.72 -51.1 -0.72 -50.0 -11.1 163.9 -1.6 -170.6 -36.3 -16.4 -35.8 -15.8 -11.0 162.9 1.50 -16.9 -177.2 -0.63 -98.3 -0.63 -98.6 -16.6 81.8 -2.2 120.6 -34.6 -45.2 -34.9 -46.3 -16.9 78.9 1.90 -19.7 165.5 -0.68 -130.2 -0.68 -130.6 -19.9 15.9 -2.3 78.5 -33.3 -67.2 -34.1 -68.1 -20.6 15.0 2.40 -18.3 128.3 -0.75 -170.0 -0.75 -168.5 -19.0 -67.9 -2.3 31.9 -32.1 -94.8 -31.4 -90.3 -19.8 -67.6 2.95 -15.7 68.2 -0.84 147.6 -0.84 148.2 -15.4 -141.6 -2.3 -14.9 -31.1 -127.6 -31.5 -126.0 -15.6 -140.3 3.55 -14.7 0.0 -0.99 104.4 -0.99 103.5 -13.1 147.3 -2.3 -63.1 -29.6 -160.3 -30.8 -159.6 -14.0 153.8 4.05 -13.9 -49.6 -1.04 67.4 -1.04 66.8 -12.8 96.4 -2.3 -101.6 -28.8 175.2 -29.3 172.7 -12.3 100.0 4.40 -14.2 -85.7 -1.07 41.4 -1.07 41.4 -13.1 57.7 -2.4 -128.0 -27.4 153.3 -28.0 155.5 -12.6 58.5 4.90 -16.9 -124.1 -1.14 4.1 -1.14 4.0 -15.9 -14.0 -2.4 -165.4 -25.9 122.8 -26.5 122.9 -15.7 -9.1 5.40 -17.2 -129.9 -1.13 -34.6 -1.13 -34.6 -17.7 -119.1 -2.5 158.1 -24.9 89.9 -25.8 89.6 -16.7 -111.6 6.00 -12.0 -165.9 -1.21 -82.2 -1.21 -81.2 -12.3 133.0 -2.6 114.2 -23.2 47.8 -23.9 47.4 -11.7 135.5 6.45 -10.0 153.5 -1.45 -116.4 -1.45 -115.5 -9.5 75.7 -2.7 80.8 -22.3 16.1 -23.7 23.1 -9.0 75.7 7.00 -9.5 103.6 -2.00 -156.8 -2.00 -158.9 -8.2 11.5 -2.8 39.3 -21.2 -23.8 -23.7 -23.4 -8.0 10.6 Measured S-parameters include the evaluation board. Alpha Industries, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 1/02A 3