GaAs IC 15 dB Voltage Variable Attenuator Single Control DC–2 GHz AF002N2-32 Features SOT-143 ■ Single Voltage Control, Positive or Negative Voltage 0.120 (3.05 mm) 0.105 (2.67 mm) 0.075 (1.91 mm) ■ Low Cost SOT-143 Package 0.055 (1.40 mm) 0.047 1.19 mm) ■ 15 dB Dynamic Range 0.098 (2.49 mm) 0.083 (2.11 mm) ■ Non-Reflective 0.021 (0.53 mm) 0.015 (0.38 mm) 0.037 (0.94 mm) 0.030 (0.76 mm) Description The AF002N2-32 is a single control non-reflective IC FET VVA ideal for AGC applications. Its low DC drain characteristic and size make it suitable for PCS and portable cellular markets. A positive control voltage may be used by adding 2 DC blocking capacitors (CBL) and 1 bypass capacitor (CBP). 0.006 (0.15 mm) 0.003 (0.08 mm) 0.035 (0.89 mm) 8˚0’ MAX. 0.010 (0.25 mm) 0.005 (0.13 mm) 0.004 (0.19 mm) 0.001 (0.03 mm) Electrical Specifications at 25°C (0, -5 V) Parameter1 Insertion Loss (V1 = -5 Frequency2 V)3 Min. DC–0.5 GHz DC–1.0 GHz DC–2.0 GHz Attenuation (V1 = 0 V) DC–0.5 GHz DC–1.0 GHz DC–2.0 GHz VSWR (V1 = 0 to -5 V) DC–2.0 GHz 18 14 10 Typ. Max. Unit 3.1 3.3 3.5 3.3 3.5 3.8 dB dB dB 20 16 12 dB dB dB 2.0:1 2.2:1 Typ. Max. Operating Characteristics at 25°C (0, -5 V) Parameter Condition Frequency Switching Characteristics4 Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru Input Power for 1 dB Compression For All Attenuation Levels Control Voltages VLow = 0 to -0.2 V @ 20 µA Max. VHigh = -5 V @ 50 µA Max. to -8 V @ 200 µA Max. VS = VHigh ± 0.2 V 0.05 GHz 0.90 GHz Min. Unit 7 10 20 ns ns mV -3 0 dBm dBm 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. DC = 300 kHz. 3. Insertion loss changes by 0.003 dB/°C. 4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 3/99A 1 GaAs IC 15 dB Voltage Variable Attenuator Single Control DC–2 GHz AF002N2-32 Typical Performance Data (0, -5 V) F = 500 MHz -5 5 4 -4 +85˚C -3 dB 3 -40˚C 2 -2 1 -1 0 DC 1 3 2 9 12 15 18 21 Attenuation (dB) Insertion Loss vs. Frequency Attenuation vs. Control Voltage 40 Absolute Maximum Ratings Characteristic 35 IP3 (dBm) 6 Frequency (GHz) Value RF Input Power 10 mW > 500 MHz 0/-8 V 4 mW @ 50 MHz 0/-8 V Control Voltage +0.2 V, -10 V 30 25 Two Tone Testing at 70 and 71 MHz PIN = 0 dBm 20 15 3 6 9 12 15 Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C ΘJC 25°C/W Note: Operating this device above any of these parameters may cause irreversible damage. 18 Attenuation (dB) 21 Pin Out Attenuation vs. IP3 J1 CBL CBL 3 4 Truth Table J2 Negative Voltage Operation V1 Attenuation J1–J2 -5 Insertion Loss 0 Full Attenuation 1 2 V1 VS Positive Voltage Operation 10 kΩ V1 Attenuation J1–J2 VHigh Full Attenuation 0 Insertion Loss CBP GND External components for positive voltage operation only. CBL = 100 pF. VHigh = +5 V to +8 V (VS = VHigh ± 0.2 V). Optimum Tuning for Maximum Attenuation 2 F (MHz) CBP Typical Maximum Attenuation 130 220 pF 21 730 15 pF 21 1925 1.6 pF 21 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 3/99A