AV109-73 ALPHA | Alldatasheet
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Technical content
Features
I Single Positive 3 V Control Voltage I 35 dB Attenuation Range @ 0.9 GHz I Excellent Linearity Performance SOT-6 AV109-73 0.074 (1.90 mm REF.) 0.071 (1.80 mm) 0.052 (1.30 mm) 0.037 (0.95 mm) REF. 0.122 (3.10 mm) 0.106 (2.70 mm) 0.006 (0.15 mm) 0.000 (0.00 mm) 0.057 (1.45 mm) 0.035 (0.90 mm) 0.020 (0.51 mm) 0.014 (0.350 mm) 0.126 (3.20 mm) 0.087 (2.20 mm) PIN 6 PIN 1 PIN 1 INDICATOR 0.022 (0.61 mm) 0.004 (0.10 mm) 0.014 (0.26 mm) 0.004 (0.10 mm) 0.012 (0.30 mm) TYP. 5.0˚ ± 1˚ 5.0˚ ± 1˚
Description
The AV109-73 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. 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. In addition, an external grounding capacitor is required. Parameter1 Frequency Min. Typ. Max. Unit Insertion Loss (VC = 0 V) 0.8–1.0 GHz 3.3 dB Maximum Attenuation (VC = 3 V)2 0.8–1.0 GHz 35 dB VSWR (I/O)3 0.5–2.5 GHz 2.0:1 Electrical Specifications at 25°C (VS = 3 V) Operating Characteristics at 25°C (VS = 3 V) 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. Maximum attenuation includes insertion loss. 3. For worst case state. Preliminary
GaAs IC 35 dB Voltage Variable Attenuator Single Positive 3 V Control 0.8–1.0 GHz AV109-73 2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 10/99A 2.52.0 3.01.5 VC (V) Attenuation vs. Control Voltage Attenuation (dB) 0 0.5 1.0 -40 -35 -30 -25 -20 -15 -10 VC (V) VSWR vs. Control Voltage VSWR 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 Input Output Typical Performance Data @ 0.9 GHz (Unless Otherwise Specified) GND VS CBL GND VC CBL CBP 12 3 65 4 Characteristic Value RF Input Power 50 mW > 500 MHz Supply Voltage +7 V Control Voltage +3.3 V Operating Temperature -40 °C to +85°C Storage Temperature -65 °C to +150°C ΘJC 25°C/W Absolute Maximum Ratings Pin Out DC blocking capacitors (CBL) and RF bypass capacitors (CBP) supplied externally. CBL = 25 pF for 900 MHz operation. CBP = 38 pF for 900 MHz operation.Note: Exceeding these parameters may cause irreversible damage.