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| GaAs 30 dB IC Voltage Variable Dual Control Attenuator DC-6 GHz AT006N3-00 Features s 30 dB Range s Low DC Drain s Fast Switching s Capable of Meeting MIL-STD Requirements5 0.940 0.840 Chip Outline 0.100 0.556 1.014 0.601 Description The AT006N3-00 chip is a GaAs FET MMIC non-reflective bridged "T" attenuator that provides over 30 dB of "matched" attenuation. The input and output VSWR is less than 1.5:1 maximum under all attenuation values. Applications for these fast attenuators are AGC circuits and variable level control in high reliability and telecommunications systems. 0.100 0.000 0.000 0.319 0.793 1.115 Electrical Specifications at 25C Parameter1 Insertion Loss2 Dimensions indicated in mm. All DC (V) pads are 0.1 x 0.1 mm and RF In, Out pads are 0.07 mm wide. Chip thickness = 0.1 mm. Frequency4 DC-1.0 GHz DC-2.0 GHz DC-4.0 GHz DC-6.0 GHz DC-1.0 GHz DC-2.0 GHz DC-4.0 GHz DC-6.0 GHz DC-2.0 GHz DC-4.0 GHz DC-6.0 GHz Min. Typ. 0.8 1.0 1.2 1.5 Max. 1.0 1.2 1.4 1.7 Unit dB dB dB dB dB dB dB dB Attenuation Range 30 29 26 25 38 35 32 30 1.2:1 1.4:1 1.5:1 1.3:1 1.5:1 1.6:1 VSWR (I/O) Operating Characteristics at 25C Parameter Switching Characteristics Condition Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru3 0-10 dB 11-20 dB 21-30 dB 31-Max. 0.1 dB 1.0 dB VLow = 0 to -0.2 V @ 20 A Max. VHigh = -5 V @ 50 A Max. 4. DC = 300 kHz. 5. See Quality/Reliability section. Frequency Min. Typ. 7 10 20 Max. Unit ns ns mV dB dB dB dB dBm dBm Attenuation Flatness DC-6 GHz 0.5 1.0 1.5 2.0 -8 (-4) -3 (0) Compression Point for all Attenuation Levels 50 MHz (> 500 MHz) Control Voltages 1. All measurements made in a 50 system, unless otherwise specified. 2. Insertion loss changes by 0.003 dB/C. 3. 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 30 dB IC Voltage Variable Dual Control Attenuator DC-6 GHz AT006N3-00 Typical Performance Data F = 1 GHz, VP1 = -3.5 V 0 50 40 30 20 10 0 DC V1 V2 Control Voltages (V) V1 (Series) -2.0 -3.0 V2 (Shunt) -4.0 -5.0 0 5 10 15 20 25 30 35 Attenuation (dB) -1.0 1 2 3 4 5 6 Relative Attenuation (dB) Frequency (GHz) Relative Attenuation vs. Control Voltages F = 50 MHz Attenuation (By State) vs. Frequency PIN at 1.0 dB Compression (dBm) 20 15 10 5 0 -5 0 5 10 15 20 25 30 Absolute Maximum Ratings Characteristic RF Input Power (RF In) Control Voltage (VC) Operating Temperature (TOP) Storage Temperature (TST) Thermal Resistance (JC) Value 10 mW > 500 MHz 4 mW @ 50 MHz +0.2 V, -10 V -55C to +125C -65C to +150C 25C/W Chip Layout V1 V2 V1 (ALT.) Attenuation (dB) Attenuation vs. 1.0 dB Compression Point Switch Schematic 50 J1 50 J2 J1 J2 GND GND GND V1 V2 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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