Preliminary GaAs IC 30 dB Voltage Variable Attenuator Single Positive 3 V Control 1.7–2.5 GHz AV110-73 Features SOT-6 ■ Single Positive 3 V Control Voltage 0.074 (1.90 mm REF.) ■ 33 dB Attenuation Range @ 1.9 GHz ■ Excellent Linearity Performance 0.126 (3.20 mm) 0.087 (2.20 mm) PIN 6 0.071 (1.80 mm) 0.052 (1.30 mm) PIN 1 INDICATOR PIN 1 Description The AV110-73 GaAs IC FET voltage variable attenuator provides 33 dB attenuation range at 1900 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. It operates with supply voltage of +3 V and control voltage of 0 V to +3 V in a low cost SOT-6 package. The RF ports require 25 pF DC blocking capacitors. 0.020 (0.51 mm) 0.014 (0.350 mm) 0.037 (0.95 mm) REF. 0.057 (1.45 mm) 0.035 (0.90 mm) 0.006 (0.15 mm) 0.000 (0.00 mm) 0.012 (0.30 mm) TYP. 5.0˚ ± 1˚ 0.014 (0.26 mm) 0.004 (0.10 mm) 5.0˚ ± 1˚ 0.122 (3.10 mm) 0.106 (2.70 mm) 0.022 (0.61 mm) 0.004 (0.10 mm) Electrical Specifications at 25°C (VS = 3 V) Parameter1 Frequency Min. Typ. Max. Unit Insertion Loss (VC = 0 V) 1.7–2.0 GHz 2.0–2.5 GHz 3.5 3.8 dB dB Maximum Attenuation (VC = 3 V)2 1.7–2.0 GHz 2.0–2.5 GHz 33 28 dB dB VSWR (I/O)3 1.7–2.5 GHz 2.0:1 Operating Characteristics at 25°C (VS = 3 V) Parameter1 Condition Switching Characteristics Rise, On (10/90% or 50% CTL to 90% RF) Fall, Off (90/10% RF or 50% CTL to 10% RF) Intermodulation Intercept Point (IIP3)3 For Two-tone Input Power +0 dBm Frequency Min. Typ. Max. 0.9 GHz Control Voltage (VC) 12 0.0 dBm VS Supply Voltage (VS) 3 Control Current (IC) Supply Current (IS) 0.2 x VC 150 Unit µS µS 1.0 0.3 V mA µA 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. Maximum attenuation includes insertion loss. 3. For worst case state. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 10/99A 1 GaAs IC 30 dB Voltage Variable Attenuator Single Positive 3 V Control 1.7–2.5 GHz AV110-73 Typical Performance Data @ 1.9 GHz 0 2.0 -5 1.9 1.8 -10 1.7 -15 VSWR Attenuation (dB) (Unless Otherwise Specified) -20 -25 1.6 1.5 Input 1.4 1.3 -30 1.2 -35 1.1 -40 Output 1.0 0 0.5 1.0 1.5 2.0 2.5 0 3.0 0.5 VControl (V) 1.5 2.0 2.5 VSWR vs. Control Voltage Absolute Maximum Ratings 0 -5 Characteristic -10 -15 Value RF Input Power 50 mW > 500 MHz Supply Voltage +7 V Control Voltage +3.3 V -20 Operating Temperature -40°C to +85°C -25 Storage Temperature -65°C to +150°C ΘJC -30 25°C/W Note: Exceeding these parameters may cause irreversible damage. -35 0 0.5 1.0 1.5 2.0 2.5 3.0 VControl (V) Attenuation vs. Control Voltage @ 2400 MHz Pin Out 1 6 2 5 J1 CBL GND VC CBL 4 3 VS J2 GND DC blocking capacitors (CBL) supplied externally. CBL = 25 pF for 1900 MHz operation. 2 3.0 VC (V) Attenuation vs. Control Voltage @ 1900 MHz Attenuation (dB) 1.0 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 10/99A