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Preliminary GaAs IC 35 dB Voltage Variable Attenuator Single Positive Control 0.5-2.5 GHz AV103-12 Features Single Positive +5 V Control Voltage 35 dB Attenuation Range @ 0.9 GHz Less Than 1 dB Attenuation Change Over Temperature Excellent Linearity Performance PIN 1 INDICATOR 0.244 (6.20 mm) 0.228 (5.80 mm) SOIC-8 PIN 8 0.050 (1.27 mm) BSC PIN 1 0.068 (1.73 mm) MAX. 0.020 (0.51 mm) MAX. 0.049 (1.24 mm) 0.016 (0.41 mm) 0.016 MAX. (0.41 mm) x 45 CHAMFER Description The AV103-12 GaAs IC FET voltage variable attenuator provides 35 dB attenuation range at 900 MHz controlled by a single positive voltage. The VVA has a linear transfer curve of 9 dB/V slope, with input and output VSWR better than 2.1:1 over all states. Its attenuation range at 1900 MHz is 33 dB. It operates with supply voltage of +5 V and control voltage of 0 V to +5 V in a low cost SOIC-8 package. The RF ports require 100 pF DC blocking capacitors. 0.197 (5.00 mm) 0.189 (4.80 mm) 0.010 (0.25 mm) 0.004 (0.10 mm) 0.158 (4.00 mm) 0.150 (3.80 mm) 0.010 (0.25 mm) 0.007 (0.17 mm) 8 MAX. Electrical Specifications at 25C (VS = 5 V) Parameter1 Insertion Loss (VC = 5 V) Frequency 0.5-1.0 GHz 1.0-2.0 GHz 2.0-2.5 GHz 0.5-0.8 0.8-1.0 1.0-1.7 1.7-2.0 2.0-2.5 GHz GHz GHz GHz GHz 28 31 30 29 28 Min. Typ. 2.5 2.8 3.2 32 35 34 33 32 2.1:1 Max. 2.7 3.0 3.4 Unit dB dB dB dB dB dB dB dB Maximum Attenuation (VC = 0 V)2 VSWR (I/O)3 0.5-2.5 GHz Operating Characteristics at 25C (VS = 5 V) Parameter1 Switching Characteristics Intermodulation Intercept Point (IIP3)3 Control Voltage (VC) Supply Voltage (VS) Control Current (IC) Supply Current (IS) 1. All measurements made in a 50 system, unless otherwise specified. 2. Maximum attenuation includes insertion loss. 3. For worst case state. Condition Rise, On (10/90% or 50% CTL to 90% RF) Fall, Off (90/10% RF or 50% CTL to 10% RF) For Two-tone Input Power 0 dBm Frequency Min. Typ. 130 60 Max. Unit nS nS dBm 0.9 GHz 0 12 VS 5.0 1.1 x VC 150 V V mA A Skyworks Solutions, Inc. [781] 376-3000 * Fax [781] 376-3100 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 12/99A 1 GaAs IC 35 dB Voltage Variable Attenuator Single Positive Control 0.5-2.5 GHz AV103-12 Typical Performance Data @ 0.9 GHz (Unless Otherwise Specified) 0 0 5 Insertion Loss (dB) Attenuation (dB) -1 -2 -3 -4 -5 0.5 1.0 1.5 2.0 2.5 10 15 20 25 30 35 40 0.5 1.0 1.5 2.0 2.5 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Maximum Attenuation vs. Frequency 0 5 2.4 2.2 2.0 Attenuation (dB) 10 VSWR 15 20 25 30 35 40 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 1.8 1.6 1.4 Output VSWR 1.2 1.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Input VSWR VC VC Attenuation vs. Control Voltage VSWR vs. Control Voltage 35 30 3 Attenuation Normalized to 25C 2 Attenuation (dB) IIP3 (dBm) 25 20 15 10 5 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 1 0 -1 +85C -2 -3 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 -20C +70C VC VC Input IP3 vs. Control Voltage Attenuation vs. Control Voltage Over Temperature 2 Skyworks Solutions, Inc. [781] 376-3000 * Fax [781] 376-3100 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 12/99A GaAs IC 35 dB Voltage Variable Attenuator Single Positive Control 0.5-2.5 GHz AV103-12 Absolute Maximum Ratings Characteristic RF Input Power Supply Voltage Control Voltage Value 50 mW > 500 MHz +4 to +8 V -0.2 V, +6.5 V (Do not allow control voltage to exceed VS voltage.) -55C to +125C -65C to +150C 25C/W Pin Out GND GND J2 1 2 8 GND 7 CBL GND J1 3 6 Operating Temperature Storage Temperature JC CBL 20 k 4 5 VS VC Note: Exceeding these parameters may cause irreversible damage. DC blocking capacitors (CBL) supplied externally. CBL = 100 pF for operation >500 MHz. Skyworks Solutions, Inc. [781] 376-3000 * Fax [781] 376-3100 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 12/99A 3 |
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