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| GaAs IC 15 dB Voltage Variable Attenuator Single Control DC-2 GHz AF002N2-32 Features s Single Voltage Control, Positive or Negative Voltage s Low Cost SOT-143 Package s 15 dB Dynamic Range s Non-Reflective 0.037 (0.94 mm) 0.030 (0.76 mm) 0.055 (1.40 mm) 0.047 1.19 mm) 0.098 (2.49 mm) 0.083 (2.11 mm) SOT-143 0.120 (3.05 mm) 0.105 (2.67 mm) 0.075 (1.91 mm) 0.021 (0.53 mm) 0.015 (0.38 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) 80' MAX. 0.010 (0.25 mm) 0.005 (0.13 mm) 0.035 (0.89 mm) 0.004 (0.19 mm) 0.001 (0.03 mm) Electrical Specifications at 25C (0, -5 V) Parameter1 Insertion Loss (V1 = -5 V)3 Frequency2 DC-0.5 GHz DC-1.0 GHz DC-2.0 GHz DC-0.5 GHz DC-1.0 GHz DC-2.0 GHz DC-2.0 GHz 18 14 10 Min. Typ. 3.1 3.3 3.5 20 16 12 2.0:1 2.2:1 Max. 3.3 3.5 3.8 Unit dB dB dB dB dB dB Attenuation (V1 = 0 V) VSWR (V1 = 0 to -5 V) Operating Characteristics at 25C (0, -5 V) Parameter Switching Characteristics4 Condition Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru For All Attenuation Levels 0.05 GHz 0.90 GHz Frequency Min. Typ. 7 10 20 -3 0 Max. Unit ns ns mV dBm dBm Input Power for 1 dB Compression Control Voltages VLow = 0 to -0.2 V @ 20 A Max. VHigh = -5 V @ 50 A Max. to -8 V @ 200 A Max. VS = VHigh 0.2 V 1. All measurements made in a 50 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 sales@alphaind.com * 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 4 3 -5 -4 -3 -40C 2 1 -2 -1 0 DC 1 2 3 6 9 12 15 18 21 +85C dB Frequency (GHz) Attenuation (dB) Insertion Loss vs. Frequency 40 35 Attenuation vs. Control Voltage Absolute Maximum Ratings Characteristic RF Input Power Value 10 mW > 500 MHz 0/-8 V 4 mW @ 50 MHz 0/-8 V +0.2 V, -10 V -40C to +85C -65C to +150C 25C/W IP3 (dBm) 30 Control Voltage 25 20 15 3 6 9 Two Tone Testing at 70 and 71 MHz PIN = 0 dBm 12 15 18 21 Operating Temperature Storage Temperature JC Note: Operating this device above any of these parameters may cause irreversible damage. Attenuation (dB) Pin Out J1 CBL 4 3 CBL J2 Attenuation vs. IP3 Truth Table Negative Voltage Operation V1 -5 0 Attenuation J1-J2 Insertion Loss Full Attenuation VS 10 k 1 2 V1 CBP Positive Voltage Operation V1 VHigh 0 VHigh = +5 V to +8 V (VS = VHigh 0.2 V). Attenuation J1-J2 Full Attenuation Insertion Loss GND External components for positive voltage operation only. CBL = 100 pF. Optimum Tuning for Maximum Attenuation F (MHz) 130 730 1925 CBP 220 pF 15 pF 1.6 pF Typical Maximum Attenuation 21 21 21 2 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 3/99A |
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