Preliminary PHEMT GaAs IC High Power SP3T Switch DC–2 GHz AS202-321 Features MLP-12 ■ Positive Low Voltage Control (0/2.75 V Operation) 0.008 (0.20 mm) SEATING PLANE 0.118 (3.00 mm) ■ Low Insertion Loss (< 0.6 dB @ 2 GHz) PIN 1 INDICATOR 0.001 (0.02 mm) 0.118 (3.00 mm) ■ High Isolation (30 dB at 1 and 2 GHz) ■ Excellent Harmonics Performance (65 dBc @ 2.75 V 1 GHz PIN = 34 dBm) 0.029 (0.73 mm) EXPOSED PAD ■ Miniature MLP-12 Plastic Package ■ PHEMT Process 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 TX/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 RX or TX port, while the other ports have high attenuation. PIN 1 INDICATOR 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) Description 0.030 (0.75 mm) ± 0.002 (0.05 mm) 0.0196 (0.50 mm) BSC Electrical Specifications at 25°C (0, +2.75 V) Parameter Frequency Insertion Loss Ant-RF1, RF2, RF3 0.1–0.5 GHz 0.5–1.0 GHz 1.0–2.0 GHz Isolation Ant-RF1, RF2, RF3 0.1–0.5 GHz 0.5–1.0 GHz 1.0–2.0 GHz Return Loss Ant-RF1, RF2, RF3 0.1–0.5 GHz 0.5–1.0 GHz 1.0–2.0 GHz Min. 25 22 22 Typ. Max. Unit 0.55 0.60 0.80 0.75 0.80 1.10 dB dB dB 28 25 25 dB dB dB 18 18 14 dB dB dB Operating Characteristics at 25°C (0, +2.75 V) Parameter Condition Frequency Min. Typ. Max. Unit 2nd Harmonic 34 dBm In @ 2.75 V 1 GHz 72 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 Control Voltages VHigh VLow -0.25 2.60 dBc 0.030 mA 0.25 5.00 V V 0 2.75 Alpha Industries, Inc. [781] 935-5150 • Fax [978] 241-7906 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 8/01A 1 PHEMT GaAs IC High Power SP3T Switch DC–2 GHz AS202-321 2.0 0 1.6 -5 1.2 -10 0.8 -15 0.4 0 -0.4 Ant-RF1 -0.8 -1.2 Isolation (dB) -30 -50 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Isolation vs. Frequency 3.0 90 -5 -10 Ant-RF2 -15 Ant-RF3 Ant-RF1 -20 2nd and 3rd Harmonics (dBc) 0 Return Loss (dB) Ant-RF1 Ant-RF2 -35 -45 -2.0 70 60 0.5 1.0 1.5 2.0 2.5 3rd Harmonic 50 40 30 20 10 0 2.0 3.0 2.5 3.0 3.5 4.0 4.5 Frequency (GHz) Control Voltage (V) Return Loss vs. Frequency 2nd and 3rd Harmonics vs. Control Voltage Pin Out 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 CBL V2 ANT Truth Table GND 0 2nd Harmonic 80 -25 V1 Ant-RF3 -25 -40 Ant-RF2 Ant-RF3 -1.6 -20 GND Insertion Loss (dB) Typical Performance Data (0, +2.75 V, CBL = 47 pF) VLow = 0–0.2 V. VHigh = 2.75–5 V. RF1 CBL V1 V3 N/C RF2 CBL GND V2 GND DC blocks required. CBL = 47 pF for operation >500 MHz. 2 Alpha Industries, Inc. [781] 935-5150 • Fax [978] 241-7906 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 8/01A CBL RF3