7 Bit Digital Attenuator Model TAD5009 Attenuation Range: 12.7 dB 50 to 250 MHz Features Maximum Ratings 50 - 250 MHz 12.7 dB Attenuation Range Integral TTL Driver Operating Temp. -55˚C to +85˚C Environmental Screening available Ambient Operating Temperature . . . . . . . . . . . -55˚C to +100˚C Storage Temperature . . . . . . . . . . . . . . . . . . . . . -65˚C to +125˚C Case Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125˚C DC Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6 Volts Continuous RF Input Power . . . . . . . . . . . . . . . . . . . . +20 dBm Pin Layout Specifications Frequency Insertion Loss (dB) Attenuation Range (dB) Steps (dB) TYPICAL Ta = 25˚C MIN/MAX Ta = -55˚C to +85˚C 50 - 250 MHz 50 - 250 MHz 3 4.2 0.1 - 12.7 0.1 - 12.7 0.1, 0.2, 0.4, 0.8, 1.6, 3.2, 6.4 0.1, 0.2, 0.4, 0.8, 1.6, 3.2, 6.4 Gnd Gnd Gnd Gnd Gnd Gnd Gnd Gnd Gnd Gnd Gnd Gnd Gnd Gnd RF2 Max. 1.25:1 1.5:1 Max. Switching Speed (µsec) 2.5 5 Max. Switching Transients (V) 0.8 1.0 Max. DC Bias +5 10 +5 15 Max. Vdc mA Gnd Gnd ± (0.05 dB + 2%) Max. ± (0.20 dB + 2%) Max. ± (0.30 dB + 3%) Max. 0.1 to 0.8 dB Accuracy 0.9 to 6.3 dB 6.4 to 12.7 dB VSWR Gnd RF1 Note: Care should always be taken to effectively ground the case of each unit TAD5009 +5V Gnd Gnd 3.2 dB Gnd 1.6 dB Gnd 0.2 dB Gnd 0.1 dB Gnd 0.4 dB Gnd 0.8 dB Gnd 6.4 dB Gnd Gnd Gnd Truth Table Control Input 7 Line TTL 1 0 Attenuator Setting Attenuate Thru Attenuators CHARACTERISTIC Packaging Options (see Appendix) 38 Pin DIP (DP-8) Typical Performance Data Insertion Loss (dB) VSWR 8 2.0 6 4 1.5 2 0 Start 50 MHz Stop 250 MHz 1.0 Start 50 MHz Stop 250 MHz SPECTRUM MICROWAVE • 2144 Franklin Drive N.E. • Palm Bay, Florida 32905 • Phone: (888) 553-7531 • Fax: (888) 553-7532 www.specwave.com SPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58 819