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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

                                                                                                Available in single and 4-channel modules


Model          No. of Channels Fmin (MHz) Fmax (MHz) Range (dB) Step (dB) Max I.L. (dB) Pmax (dBm) Interface     
4205A-127 1 0.3 6000 127.75 0.25 12.8 23 USB/Parallel/I²C/SPI/UART
4205A-95.5 1 0.3 6000 95.75 0.25 9.0 23 USB/Parallel/I²C/SPI/UART
4205B-95.5 1 0.3 8000 95.75 0.25 11 28 USB/Parallel/I²C/SPI/UART
4205A-63.5 1 0.3 6000 63.75 0.25 6.5 23 USB/Parallel/I²C/SPI/UART
4205A-31.5 1 0.3 6000 31.75 0.25 4.2 23 USB/Parallel/I²C/SPI/UART
4209-40-31.5-X 1 100 40000 31.5 0.5 6.0 28 USB/Parallel/I²C/SPI/UART
4209-30-31.5-1 1 100 30000 31.5 0.5 4.8 28 USB/Parallel/I²C/SPI/UART
4209-18-31.5 1 100 18000 31.5 0.5 3.4 28 USB/Parallel/I²C/SPI/UART
4209-40-63-X 1 100 40000 63 0.5 11.8 28 USB/Parallel/I²C/SPI/UART
4209-30-63-1 1 100 30000 63 0.5 8.0 28 USB/Parallel/I²C/SPI/UART
4209-18-63 1 100 18000 63 0.5 6.0 28 USB/Parallel/I²C/SPI/UART
4226-63 1 800 3000 63 1 3.7 24 Parallel
4228-103 1 800 3000 103 1 5.5 24 Parallel
4228-63.75 1 800 2500 63.75 0.25 4.5 24 Parallel
4238-103 1 10 2500 103 1 9.25 30 Parallel
4238-63.75 1 10 2500 63.75 0.25 9.25 30 Parallel
4246-63 1 10 2500 63 1 10 36 Parallel
4248-103 1 10 2500 103 1 13 36 Parallel
4248-63.75 1 10 2500 63.75 0.25 13 36 Parallel
4204-95.5 (75 Ω) 1 35 3000 95.5 0.5 4.5 28 USB/Parallel/I²C/SPI/UART
4400-8-31/5 4 100 8000 31.5 0.5 4.3 28 USB & Ethernet
4400-8-94/5 4 100 8000 94.5 0.5 6.9 28 USB & Ethernet
4401-8-31/5 4 100 8000 31.5 0.5 8.3 28 USB & Ethernet
4401-8-95/75 4 100 8000 95.75 0.5 11 28 USB & Ethernet
APITech Weinschel’s 4-Channel Programmable Attenuators operate over the 0.3 to 8000 MHz frequency range, and offer attenuation ranges up to 95 dB. These connectors are ideal for MU-MIMO Wireless Testing and Fading test simulation environments.