HIP3™ Variable Attenuator 0.80–1.00 GHz AV101-12 Features ■ +50 dBm IP3 Typical SOI ■ Low Loss 1 dB Typical C-8 SOI C-8 ■ Attenuation 30 dB Typical ■ Good VSWR <1.5:1 Typical ■ Small SOIC-8 Package Description The AV101-12 is a current controlled variable attenuator from Alpha’s series of HIP3™ components. It is designed to meet the wide dynamic range required in spread spectrum wireless base station applications. A monolithic quadrature hybrid is teamed with a silicon PIN diode pair in a plastic surface mount package reducing size and assuring consistency from part to part. Electrical Specifications at 25°C Parameter Min. Frequency Typ. 0.80 Insertion Loss (0 mA Control Current) 1 Attenuation @ 3.0 mA Control Current (900 MHz) 18.5 VSWR All Ports 1.5 Input 3rd Order Intercept +47 Group Delay Max. Unit 1.00 GHz 1.5 dB 21.5 dB 1.8 +50 dBm 0.9 1.2 ns Typ. Max. Unit 5 8 5 µs µs mV Operating Characteristics at 25°C (0, +5 V) Parameter1 Switching Characteristics2 Condition Frequency Min. Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru (Peak) Maximum Input Power for <1 dB Attenuation Variation +15 dBm 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. 0–4 mA square wave total control current. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 6/01A 1 HIP3™ Variable Attenuator 0.80–1.00 GHz AV101-12 Typical Performance Data 1.5 0.0 Input Attenuation (dB) VSWR (:1) 800 MHz -10.0 1.4 1.3 1.2 Output 1.1 -20.0 -30.0 900 MHz -40.0 1000 MHz -50.0 -60.0 1.0 0.0000 0.0010 0.0020 0.0030 0.0040 -70.0 0.0000 0.0050 0.0010 Current (Amps) 0.0030 0.0040 1.5 0.0 1.4 -5.0 1.3 Input 0.0 mA 0.2 mA 0.9 mA -10.0 1.9 mA -15.0 2.8 mA -20.0 1.1 Output 1.0 0.0000 0.0010 0.0020 0.0030 0.0040 -25.0 0.80 0.0050 0.85 0.90 0.95 Frequency (GHz) Input/Output VSWR vs. Current @ 900 MHz Attenuation vs. Frequency 1.00 10 Diode Current (mA) 1.4 VSWR (:1) 3.5 mA Current (Amps) 1.5 Output 1.3 1.2 Input 1.1 1.0 0.0000 2 0.0050 Attenuation vs. Current Attenuation (dB) VSWR (:1) Input/Output VSWR vs. Current @ 800 MHz 1.2 0.0020 Current (Amps) 0.0010 0.0020 0.0030 0.0040 0.0050 1 0.1 0.01 400 600 800 1000 Current (Amps) Diode Voltage (mV) Input/Output VSWR vs. Current @ 1000 MHz Typical PIN Diode Current vs. Voltage Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 6/01A HIP3™ Variable Attenuator 0.80–1.00 GHz Pin Out AV101-12 Connection Diagram 680 Ω CONTROL CURRENT RF OUT 220 pF 220 pF 100 nH 100 nH CONTROL CURRENT 1 8 CONTROL CURRENT GND 2 7 GND CONTROL CURRENT RF IN 6 GND 5 4 RF In 3 GND RF Out SOIC-8 PIN 8 0.050 (1.27 mm) BSC Absolute Maximum Ratings Characteristic Value RF Input Power 0.5 W CW, 4 W @ 12.5% Duty Cycle Control Current 50 mA per Diode Operating Temperature -40 to +85°C Storage Temperature -40 to +85°C Maximum Reverse Diode Voltage -10 V Electrostatic Discharge 0.244 (6.20 mm) 0.228 (5.80 mm) PIN 1 INDICATOR 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 +125 V Note: Operating this device above any of these parameters may cause irreversible damage. 0.197 (5.00 mm) 0.189 (4.80 mm) 0.010 (0.25 mm) 0.004 (0.10 mm) Recommended Board Layout 0.158 (4.00 mm) 0.150 (3.80 mm) 0.010 (0.25 mm) 0.007 (0.17 mm) 8˚ MAX. 0.1630 0.0200 DIA. VIA 4 PLACES 0.0555 TYP. 0.0190 TYP. Material is 10 mil FR4. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 6/01A 3