AS202-321 ALPHA | Alldatasheet
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Features
■ Positive Low Voltage Control (0/2.75 V Operation) ■ Low Insertion Loss (< 0.6 dB @ 2 GHz) ■ High Isolation (30 dB at 1 and 2 GHz) ■ Excellent Harmonics Performance (65 dBc @ 2.75 V 1 GHz P IN = 34 dBm) ■ Miniature MLP-12 Plastic Package ■ PHEMT Process MLP-12 AS202-321 0.008 (0.20 mm) SEATING PLANE0.118 (3.00 mm) PIN 1 INDICATOR PIN 1 INDICATOR 0.118 (3.00 mm) 0.001 (0.02 mm) 0.030 (0.75 mm) ± 0.002 (0.05 mm) EXPOSED PAD 0.029 (0.73 mm) 0.0196 (0.50 mm) BSC + 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)Description The AS202-321 is a PHEMT GaAs IC SP3T antenna switch operating in the 900 MHz and 1800 MHz frequency bands. Switching between the antenna and T X/RX ports is accomplished with 3 control inputs. When the control inputs are driven with the appropriate voltages, a low insertion loss path is provided from an antenna port to an R X or T X port, while the other ports have high attenuation. Parameter Frequency Min. Typ. Max. Unit Insertion Loss Ant-RF1, RF2, RF3 0.1–0.5 GHz 0.55 0.75 dB 0.5–1.0 GHz 0.60 0.80 dB 1.0–2.0 GHz 0.80 1.10 dB Isolation Ant-RF1, RF2, RF3 0.1–0.5 GHz 25 28 dB 0.5–1.0 GHz 22 25 dB 1.0–2.0 GHz 22 25 dB Return Loss Ant-RF1, RF2, RF3 0.1–0.5 GHz 18 dB 0.5–1.0 GHz 18 dB 1.0–2.0 GHz 14 dB Electrical Specifications at 25°C (0, +2.75 V) Preliminary Parameter Condition Frequency Min. Typ. Max. Unit 2nd Harmonic 34 dBm In @ 2.75 V 1 GHz 72 dBc 3rd Harmonic 34 dBm In @ 2.75 V 1 GHz 65 dBc 2nd Harmonic 32 dBm In @ 2.75 V 2 GHz 70 dBc 3rd Harmonic 32 dBm In @ 2.75 V 2 GHz 65 dBc Gate Leakage Current 34 dBm In @ 2.75 V 0.030 mA Control Voltages V High -0.25 0 0.25 V VLow 2.60 2.75 5.00 V Operating Characteristics at 25°C (0, +2.75 V)
PHEMT GaAs IC High Power SP3T Switch DC–2 GHz AS202-321 2 Alpha Industries, Inc. [781] 935-5150 • Fax [978] 241-7906 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 8/01A RF1 GND RF2 GND ANT GND N/C RF3 GND CBLCBL CBL CBL Pin Out Typical Performance Data (0, +2.75 V, C BL = 47 pF) Insertion Loss vs. Frequency Frequency (GHz) Insertion Loss (dB) -2.0 -1.6 -1.2 -0.8 -0.4 0.4 0.8 1.2 1.6 2.0 Ant-RF1 Ant-RF2 Ant-RF3 Isolation vs. Frequency Frequency (GHz) Isolation (dB) -50 -45 -40 -35 -30 -25 -20 -15 -10 Ant-RF1Ant-RF2 Ant-RF3 Return Loss vs. Frequency Frequency (GHz) Return Loss (dB) -25 -20 -15 -10 Ant-RF1 Ant-RF2 Ant-RF3 2nd and 3rd Harmonics vs. Control Voltage Control Voltage (V) 2nd and 3rd Harmonics (dBc) 2nd Harmonic 3rd Harmonic V1 V2 V3 Ant-RF1 Ant-RF2 Ant-RF3 VHigh VLow VLow Ins. Loss Isolation Isolation VLow VHigh VLow Isolation Ins. Loss Isolation VLow VLow VHigh Isolation Isolation Ins. Loss Truth Table VLow = 0–0.2 V. VHigh = 2.75–5 V. DC blocks required. CBL = 47 pF for operation >500 MHz.