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| ADS-51V-1000 31 dB DIGITAL ATTENUATOR 50 to 1500 MHz / 0 to 31 dB Attenuation / Monotonic / 5-Bit Direct TTL Drive / +5V Supply V Package Outline - 24 pin Dual In Line TRUTH TABLE Attenuation Setting, dB Reference 1 2 4 8 16 Control Input ``6" ''7" ``8" ''9" ``5" 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 GENERAL SPECIFICATIONS 50 - 1500 MHz 0 - 31 dB 1 dB 0.5 dB/bit max. 1.0 dB max. Attenuation Accuracy: 0.5 dB at fo Insertion Loss: 5 dB max. Phase Variation: 10 typ. at fo VSWR: 1.7:1 max. Impedance: 50 nom. Switching Delay Time: 2 s typ. (50% control transition to 10/90% RF) Frequency Range: Attenuation Range: Minimum Step Size: Attenuation Flatness: ``1" = Logic High TTL ``0" = Logic Low TTL Switching Transients: Bias Requirement: 20 mV typ. +5 VDC @ 100 mA nom. (50% control transition to 10/90% RF) Input Intercept Point: +32 dBm typ. Power Input 0.25 W max. Weight, nominal: 0.4 oz (11 g) Operating Temperature:-- 55 to +85C NOTES: 1. Tolerance on 3 place decimals .010(.25) except as noted. 2. Dimensions in inches over millimeters. 3. Lead dimensions apply only at body. 4. All unmarked terminals are ground. 30Apr96 General Notes: 1. The ADS-51V-1000 is a 50 to 1,500 MHz constant impedance 5-bit digital attenuator designed to be driven directly from TTL logic. PIN diode switched attenuator pads are activated by Advanced FactTM C-MOS, TTL compatible logic drivers, allowing high speed operation without need of a negative supply. Careful design of thick film resistive pads and detailed selection of suitable PIN diodes provide a wide bandwidth with minimal phase shift. 2. Screened versions with extended reliability components are available for applications requiring the highest reliability. For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531 |
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