AT90-1263

Digital Attenuator, 31 dB, 5-Bit, TTL Driver, DC-4.0 GHz V 6.00 AT90-1263 Features n n n n n n n CSP-1 Attenuation: 1.0dB Steps to 31dB Single Positive Supply Contains internal DC to DC converter Low DC Power Consumption Small Footprint, JEDEC Package Integral TTL Driver 50 ohm Impedance Description M/A-COM's AT90-1263 is a GaAs FET 5-bit digital attenuator with integral TTL driver. Step size is 1.0 dB providing 31dB total attenuation range. This device is in an FQFP-N plastic surface mount package. The AT90-1263 is ideally suited for use where accuracy, fast speed, very low power consumption and low costs are required. Electrical Specifications TA = +25°C Parameter Insertion Loss Attenuation Accuracy Test Conditions — Individual Bits 1-2-4-8-16 dB Any Combination of Bits 1 to 31 dB VSWR Switching Speed 1 dB Compression Input IP3 +Vcc Logic “0” Logic “1” Icc Full Range 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% — — Two-tone inputs up to +5 dBm — Sink Current is 20 µA max. Source Current is 20 µA max. Vcc min to max, Logic “0” or “1” Frequency DC - 4.0 GHz DC - 3.0 GHz DC - 4.0 GHz DC - 4.0 GHz DC - 4.0 GHz — — 50 MHz 0.5 - 4.0 GHz 50 MHz 0.5-4.0 GHz — — — — Units dB dB dB dB Ratio nS nS dBm dBm dB dB V V V mA Min — — — — — — — — — — — 4.75 0.0 2.0 — Typical 3.5 — — — 2.0:1 75 20 +21 +29 +35 +48 5.0 — — 6 Max 3.8 ±(.3 +5% of atten setting) ±(.4 +6% of atten setting) ±(.5 +7% of atten setting) 2.2:1 150 50 — — — — 5.25 0.8 5.0 10 Digital Attenuator, 31 dB, 5-Bit, T...