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Solid State Programmable Attenuators

Weinschel brand solid state programmable attenuators are suited for both benchtop and systems integration.  

  • Available in frequencies ranging from 300 kHz to 40 GHz
  • Attenuation range up to 127 dB
  • Step size as fine as 0.25 dB
  • USB, Parallel, I2C,  UART and SPI control interfaces
Model          Fmin (MHz) Fmax (MHz) Range (dB) Step (dB) Max I.L. (dB) Pmax (dBm) Interface      Logic Level     
4205A-127 0.3 6000 127.75 0.25 12.8 23 USB/Parallel/I²C/SPI/UART TTL & CMOS
4205A-95.5 0.3 6000 95.75 0.25 9.0 23 USB/Parallel/I²C/SPI/UART TTL & CMOS
4205B-95.5 0.3 8000 95.75 0.25 11 28 USB/Parallel/I²C/SPI/UART TTL & CMOS
4205A-63.5 0.3 6000 63.75 0.25 6.5 23 USB/Parallel/I²C/SPI/UART TTL & CMOS
4205A-31.5 0.3 6000 31.75 0.25 4.2 23 USB/Parallel/I²C/SPI/UART TTL & CMOS
4209-40-31.5-X 100 40000 31.5 0.5 6.0 28 USB/Parallel/I²C/SPI/UART TTL & CMOS
4209-30-31.5-1 100 30000 31.5 0.5 4.8 28 USB/Parallel/I²C/SPI/UART TTL & CMOS
4209-18-31.5 100 18000 31.5 0.5 3.4 28 USB/Parallel/I²C/SPI/UART TTL & CMOS
4209-40-63-X 100 40000 63 0.5 11.8 28 USB/Parallel/I²C/SPI/UART TTL & CMOS
4209-30-63-1 100 30000 63 0.5 8.0 28 USB/Parallel/I²C/SPI/UART TTL & CMOS
4209-18-63 100 18000 63 0.5 6.0 28 USB/Parallel/I²C/SPI/UART TTL & CMOS
4226-63 800 3000 63 1 3.7 24 Parallel TTL
4228-103 800 3000 103 1 5.5 24 Parallel TTL
4228-63.75 800 2500 63.75 0.25 4.5 24 Parallel TTL
4238-103 10 2500 103 1 9.25 30 Parallel TTL
4238-63.75 10 2500 63.75 0.25 9.25 30 Parallel TTL
4246-63 10 2500 63 1 10 36 Parallel TTL
4248-103 10 2500 103 1 13 36 Parallel TTL
4248-63.75 10 2500 63.75 0.25 13 36 Parallel TTL
4204-95.5 (75 Ω) 35 3000 95.5 0.5 4.5 28 USB/Parallel/I²C/SPI/UART TTL & CMOS