AV105-12 ALPHA | Alldatasheet

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Technical content

Features

■ Single Positive +5 V Control Voltage ■ 35 dB Attenuation Range @ 0.9 GHz ■ Excellent Linearity Performance SOIC-8 AV105-12 0.049 (1.24 mm) 0.016 (0.41 mm) 0.016 MAX. (0.41 mm) x 45˚ CHAMFER PIN 1 0.197 (5.00 mm) 0.189 (4.80 mm) 0.068 (1.73 mm) MAX. 0.010 (0.25 mm) 0.004 (0.10 mm) 0.010 (0.25 mm) 0.007 (0.17 mm) 0.158 (4.00 mm) 0.150 (3.80 mm) MAX. 0.020 (0.51 mm) MAX. 0.244 (6.20 mm) 0.228 (5.80 mm) 0.050 (1.27 mm) BSCPIN 8 PIN 1 INDICATOR

Description

The AV105-12 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 8 dB/V slope, with input and output VSWR better than 1.4:1 over all states. Its attenuation range at 1900 MHz is 31 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 25 pF DC blocking capacitors. Parameter1 Frequency Min. Typ. Max. Unit Insertion Loss (VC = 5 V) 0.5–1.0 GHz 2.8 3.1 dB 1.0–2.0 GHz 3.2 3.6 dB 2.0–2.5 GHz 3.5 3.8 dB Maximum Attenuation (VC = 0 V)2 0.5–0.8 GHz 25 33 dB 0.8–1.0 GHz 35 38 dB 1.0–1.7 GHz 32 35 dB 1.7–2.0 GHz 28 31 dB 2.0–2.5 GHz 26 30 dB VSWR (I/O)3 0.5–2.5 GHz 1.8:1 Electrical Specifications at 25°C (VS = 5 V) Operating Characteristics at 25°C (VS = 5 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 Control 0.5–2.5 GHz AV105-12 2 Alpha Industries, Inc.[781] 935-5150 • Fax [617]824-4579• Emailsales@alphaind.com • www .alphaind.com Specifications subject to change without notice.3/99A 2.52.0 Frequency (G H z) Insertion Loss vs. Frequency Insertion Loss (dB) 0.5 1.0 1.5 4 53 VC (V) A ttenuation vs. C ontrol Voltage Attenuation (dB) 0 1 2 -40 -35 -30 -25 -20 -15 -10 2.52.0 Frequency (G H z) M axim um A ttenuation vs. Frequency M axim um Attenuation (dB) 0.5 1.0 1.5 -45 -40 -35 -30 -25 -20 -15 -10 Typical Performance Data @ 0.9 GHz (Unless Otherwise Specified) 4 53 VC (V) VSW R vs. C ontrol Voltage VSW R 0 1 2 1.00 1.10 1.20 1.30 1.40 1.50 Input O utput 4 53 VC (V) Input IP3 vs. C ontrol Voltage IIP3 (dBm ) 0 1 2 4.0 5.03.0 VC (V) A ttenuation vs. C ontrol Voltage O ver Tem perature Attenuation (dB) 0 1.0 2.0 -3.0 -2.0 -1.0 1.0 2.0 3.0 Attenuation N orm alized to 25˚C 85˚C -20˚C

GaAs IC 35 dB Voltage Variable Attenuator Single Positive Control 0.5–2.5 GHz AV105-12 Alpha Industries, Inc.[781] 935-5150 • Fax [617]824-4579• Emailsales@alphaind.com • www .alphaind.com 3 Specifications subject to change without notice.3/99A 1234 8765 G N D G N D G N D VS VC G N D C BL C BL Characteristic Value RF Input Pow er 50 mW > 500 MHz Supply Voltage +4 to +8 V Control Voltage -0.2 V < VC < VS +0.2 V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C Θ JC 25°C/W Absolute Maximum Ratings Pin Out DC blocking capacitors (CBL) supplied externally. C BL = 25 pF for operation >500 MHz. Note:Exceeding these parameters may cause irreversible damage.