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| Preliminary GaAs IC 35 dB Voltage Variable Attenuator Single Positive 3 V Control 0.5-2.5 GHz AV106-12 Features s Single Positive +3 V Control Voltage s 35 dB Attenuation Range @ 0.9 GHz s 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 Description The AV106-12 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 12 dB/V slope, with input and output VSWR better than 2:1 over all states. Its attenuation range at 1900 MHz is 25 dB. It operates with supply voltage of +3 V and control voltage of 0 V to +3 V in a low cost SOIC-8 package. The RF ports require 25 pF DC blocking capacitors. 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 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 = 3 V) Parameter1 Insertion Loss (VC = 0 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 25 34 28 25 23 Min. Typ. 3.4 3.5 3.8 32 37 33 30 26 1.8:1 Max. 3.6 3.8 4.2 Unit dB dB dB dB dB dB dB dB Maximum Attenuation (VC = 3 V)2 VSWR (I/O)3 0.5-2.5 GHz Operating Characteristics at 25C (VS = 3 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. 1.0 0.3 Max. Unit S S dBm 0.9 GHz 0.0 10 VS 3 0.2 x VC 150 V V mA A Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 3/99A 1 GaAs IC 35 dB Voltage Variable Attenuator Single Positive 3 V Control 0.5-2.5 GHz AV106-12 Typical Performance Data @ 0.9 GHz (Unless Otherwise Specified) 0.0 0 Maximum Attenuation (dB) 0.5 1.0 1.5 2.0 2.5 -0.5 -5 -10 -15 -20 -25 -30 -35 -40 0.50 1.00 1.50 2.00 2.50 Insertion Loss (dB) -1.0 -1.5 -20. -2.5 -3.0 -3.5 -4.0 -4.5 -5.0 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency 0 -5 Maximum Attenuation vs. Frequency 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 Output 0 0.5 1.0 1.5 2.0 2.5 3.0 Input Attenuation (dB) -10 -15 -20 -25 -30 -35 -40 0 0.5 1.0 1.5 2.0 2.5 3.0 VC (V) VSWR VC (V) Attenuation vs. Control Voltage 30 25 5 4 VSWR vs. Control Voltage Attenuation Normalized to 25C 85C 70C 25C Insertion Loss (dB) 3 2 1 0 -1 -2 -3 -4 -5 IIP3 (dBm) 20 15 10 5 0 0 0.5 1.0 1.5 2.0 2.5 3.0 -20C 0 0.5 1.0 1.5 2.0 2.5 3.0 VC (V) VC (V) Input IP3 vs. Control Voltage Attenuation vs. Control Voltage Over Temperature 2 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 3/99A GaAs IC 35 dB Voltage Variable Attenuator Single Positive 3 V Control 0.5-2.5 GHz AV106-12 Absolute Maximum Ratings Characteristic RF Input Power Supply Voltage Control Voltage Operating Temperature Storage Temperature JC Value 50 mW > 500 MHz +7 V +3.3 V -40C to +85C -65C to +150C 25C/W Pin Out GND GND J2 1 2 8 GND 7 CBL GND J1 3 6 CBL VS 4 5 Note: Exceeding these parameters may cause irreversible damage. VC DC blocking capacitors (CBL) supplied externally. CBL = 25 pF for operation >500 MHz. Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 3/99A 3 |
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