AV141-321 ALPHA | Alldatasheet
Document overview
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Technical content
Features
■ Power Control for 3.5 GHz Fixed Wireless Applications ■ Minimum 25 dB Attenuation ■ Positive 0.2–1.2 V Control Voltage ■ QFN-12 3 x 3 mm Package ■ Low Cost ■ No External Components Needed AV141-321
Description
The AV141-321 is a GaAs IC PHEMT voltage variable attenuator that has been designed for WLAN applications. Operating from 2.7–4.0 GHz, the AV141-321 is ideal for low cost applications such as 3.5 GHz fixed wireless LAN power control applications. Parameter Frequency Min. Typ. Max. Unit Maximum Attenuation (VC = 0.2 V) 2.7–4.0 GHz 25 30 dB VSWR — All Ports 2.7–4.0 GHz 1.5 1.8 Electrical Specifications at 25°C Parameter Condition Frequency Min. Typ. Max. Unit Switching Characteristics Rise, Fall (10/90% or 90/10% RF) 80 50 ns On, Off (50% CTL to 90/10% RF) 150 ns Video Feedthru 25 mV Maximum Input Power 2.7–4.0 GHz 13 dBm for < 1 dB Attenuation Variation Input 3rd Order Intercept Point (IIP3) 2.7–4.0 GHz 20 dBm Control Voltage 0.2 1.2 V Operating Characteristics at 25°C (0, +1.2 V) Characteristic Value RF Input Power 1 W Max. > 500 MHz Control Voltage -0.2 V, +6 V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C Absolute Maximum Ratings 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. For worst case state. 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. For worst case state. Preliminary
GaAs IC 25 dB Voltage Variable Attenuator 2.7–4.0 GHz AV141-321 2 Alpha Industries, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 1/02A Typical Performance Data at 25°C Frequency (GHz) Insertion Loss (dB) Insertion Loss vs. Frequency -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 Frequency (GHz) Maximum Attenuation (dB) Maximum Attenuation vs. Frequency -40 -35 -30 -25 -20 -15 -10 VC (V) Attenuation (dB) Attenuation vs. Control Voltage -40 -35 -30 -25 -20 -15 -10 VC (V) VSWR VSWR vs. Control Voltage 1.0 1.2 1.4 1.6 1.8 Input Output Frequency (GHz) VSWR Output VSWR vs. Frequency 1.0 1.2 1.4 1.6 1.8 Minimum Attenuation Maximum Attenuation Frequency (GHz) IIP3 (dBm) Input IP3 vs. Frequency
GaAs IC 25 dB Voltage Variable Attenuator 2.7–4.0 GHz AV141-321 Alpha Industries, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email sales@alphaind.com • www.alphaind.com 3 Specifications subject to change without notice. 1/02A N/C N/C N/C N/C VC N/C N/C N/C N/C12 N/C Pin Out Ground is connected to paddle on bottom. Measured S-Parameters include the evaluation board. VVA Test Board SK39506 Evaluation Board Layout Typical S-Parameters (Control Voltage 0/+1.2 V) QFN-12 0.008 (0.20 mm) SEATING PLANE0.118 (3.00 mm) PIN 1 INDICATOR PIN 1 INDICATOR 0.118 (3.00 mm) 0.001 (0.02 mm) 0.030 (0.75 mm) ± 0.002 (0.05 mm) EXPOSED PAD 0.029 (0.73 mm) 0.0196 (0.50 mm) BSC + 0.004 (0.10 mm) - 0.006 (0.15 mm) 0.009 (0.23 mm) + 0.003 (0.07 mm) - 0.002 (0.05 mm) Insertion Loss State High Attenuation State # GHZ S MA R 50 # GHZ S MA R 50 Freq. (GHz) S 11 S11a S21 S21a S12 S12a S22 S22a S11 S11a S21 S21a S12 S12a S22 S22a