sales@freflex.com

Digitally Controlled Attenuators

Freflex supplies broad band and high dynamic range digital controlled attenuators at frequencies up to 40GHz. The step can be 0.25dB and attenuation range can be 100dB or even more. Our digital controlled attenuators are widely used in many areas.

Features:
  • Broadband
  • High Dynamic Range
  • Customization on demand
Applications:
  • Wireless
  • Radar
  • Laboratory Test
Digitally Controlled Attenuators
Part Number Frequency (GHz) Attenuation
Range (dB)
Control Bits Step (dB) Accuracy (+/-) Insertion Loss
(dB, max.)
VSWR Switching Time
(nS,max.)
Power
(dBm,max.)
Lead Time
(Weeks)
FDA-0-6000-30-1 DC~6 0~30 - 1 3~5% typ. 2 1.5 - 20 3~6
FDA-0-18000-11-1 DC~18 0~11 - 1 ±1dB 0.6+0.09/GHz 1.75 20ms 30 3~6
FDA-0-18000-30-10 DC~18 0~30 - 10 1.3dB 1.9 1.5 - 30 3~6
FDA-0-18000-110-10 DC~18 0~110 - 10 ±4.5dB 0.6+0.09/GHz 1.75 20ms 30 3~6
FDA-0-26500-11-1 DC~26.5 0~11 - 1 ±1.15dB 2.5 1.8 20ms 30 3~6
FDA-0-26500-90-10 DC~26.5 0~90 - 10 ±2.95dB 2.5 1.8 20ms 50 3~6
FDA-0-40000-11-1 DC~40 0~11 - 1 ±1.2dB 3 1.85 20ms 30 3~6
FDA-0-40000-90-10 DC~40 0~90 - 10 ±5% 3 1.85 20ms 30 3~6
FDA-0-50000-11-1 DC~50 0~11 - 1 ±1.35dB 3.5 1.85 20ms 30 3~6
FDA-0-50000-35-5 DC~50 0~35 - 5 1.4dB 2.6 1.6 20ms 30 3~6
FDA-0-50000-65-5 DC~50 0~65 - 5 ±1.5dB 4 1.6 20ms 30 3~6
FDA-0-50000-90-10 DC~50 0~90 - 10 ±5.5% 4 2.2 20ms 30 3~6
FDA-9K-20000-31.5-0.5 9K~20 0~31.5 - 0.5 ±1dB typ. 6 2 - 25 3~6
FDA-0.1-5000-110-1 0.0001~5 0~110 7 1 ±3dB 8 2.5 500 30 3~6
FDA-10-18000-31.5-0.5 0.01~18 0~31.5 - 0.5 ±1dB 5.5 2 1μs 25 3~6
FDA-10-18000-63-1 0.01~18 0~63 - 1 ±1.5dB typ. 7.5 2 20 25 3~6
FDA-10-18000-63.5-0.5 0.01~18 0~63.5 7 0.5 ±2dB 5 2.5 - - 3~6
FDA-10-18000-63.75-0.25 0.01~18 0~63.75 8 0.25 ±2dB 6 2.5 - - 3~6
FDA-10-20000-63.75-0.25 0.01~20 0~63.75 - 0.25 ±1.5dB typ. 8 2 20 25 3~6
FDA-20-6000-31.5-0.5 0.02~6 0~31.5 - 0.5 ±0.5dB typ. 6 2 - 25 3~6
FDA-20-18000-31.5-0.5 0.02~18 0~31.5 - 0.5 ±1dB typ. 5.5 2 - 25 3~6
FDA-20-20000-31.5-0.5 0.02~20 0~31.5 - 0.5 ±1dB typ. 6 2 - 25 3~6
FDA-50-4000-31-1 0.05~4 0~31 5 1 ±0.5dB typ. 3 1.8 1000 24 3~6
FDA-100-6000-30-1 0.1~6 0~30 - 1 ±1.5dB typ. 5.5 2 - 30 3~6
FDA-100-18000-31.5-0.5 0.1~18 0~31.5 - 0.5 ±1dB typ. 5.5 2 - 25 3~6
FDA-100-18000-32-0.03 0.1~18 0~32 10 0.03 ±2dB 4.7 2.5 - - 3~6
FDA-100-18000-32-0.06 0.1~18 0~32 9 0.06 ±2dB typ. 5 2.5 5000 24 3~6
FDA-100-26500-31.5-0.5 0.1~26.5 0~31.5 6 0.5 ±2.5dB typ. 6 typ. 2 typ. 50 27 3~6
FDA-100-40000-31-1 0.1~40 0~31 5 1 ±2dB 9 2.2 - - 3~6
FDA-100-40000-32-0.03 0.1~40 0~32 10 0.03 ±2dB 6 2.5 - - 3~6
FDA-100-40000-32-0.06 0.1~40 0~32 9 0.06 ±2dB typ. 6 2.5 - - 3~6
FDA-100-40000-31.5-0.5 0.1~40 0~31.5 - 0.5 ±1dB 9 2.2 - 25 3~6
FDA-100-50000-31.5-0.5 0.1~50 0~31.5 6 0.5 ±2dB typ. 11 2.5 - - 3~6
FDA-500-18000-31.5-0.5 0.5~18 0~31.5 - 0.5 ±1dB typ. 5.5 2 - 25 3~6
FDA-500-18000-63.75-0.25 0.5~18 0~63.75 - 0.25 ±1.5dB typ. 7.5 2 20 25 3~6
FDA-500-40000-31.5-0.5 0.5~40 0~31.5 - 0.5 ±2dB 7 2 - 25 3~6
FDA-500-40000-63.5-0.5 0.5~40 0~63.5 - 0.5 ±2dB 11.5 1.7 - 25 3~6
FDA-1000-2000-31.5-0.5 1~2 0~31.5 - 0.5 ±0.5dB typ. 3.6 1.8 - 25 3~6
FDA-1000-2000-47.5-0.5 1~2 0~47.5 7 0.5 3% 3.5 1.5 100 27 3~6
FDA-1000-2000-63.5-0.5 1~2 0~63.5 - 0.5 ±2.5dB 5 1.7 - 25 3~6
FDA-1000-2000-63.75-0.25 1~2 0~63.75 8 0.25 ±1.5dB 1.5 1.5 - - 3~6
FDA-1000-18000-31.5-0.5 1~18 0~31.5 - 0.5 ±1dB typ. 5.5 2 - 25 3~6
FDA-1000-18000-31.5-0.5-1 1~18 0~31.5 - 0.5 ±1dB typ. 5.5 2 - 25 3~6
FDA-1000-18000-63-1 1~18 0~63 6 1 ±2dB typ. 7.5 2 100 26 3~6
FDA-1000-18000-127-0.5 1~18 0~127 - 0.5 ±2.5dB typ. 12.5 2.5 1us 25 3~6
FDA-1000-20000-63.5-0.5 1~20 0~63.5 - 0.5 ±3dB typ. 7 1.8 - 25 3~6
FDA-1000-40000-31-1 1~40 0~31 5 1 ±5% typ. 8 2 - 27 3~6
FDA-1000-40000-63.5-0.5 1~40 0~63.5 - 0.5 ±2dB typ. 11.5 2 200 25 3~6
FDA-1000-50000-31.5-0.5 1~50 0~31.5 6 0.5 ±2dB typ. 11 2.5 - - 3~6
FDA-2000-4000-63.75-0.25 2~4 0~63.75 8 0.25 ±1.5dB 2 1.5 - - 3~6
FDA-2000-4000-31.5-0.5 2~4 0~31.5 - 0.5 ±0.5dB typ. 3.8 1.8 - 25 3~6
FDA-2000-18000-15-1 2~18 0~15 4 1 4% 7 2.2 500 20 3~6
FDA-2000-18000-31.5-0.5 2~18 0~31.5 - 0.5 ±1dB typ. 5.5 2 - 25 3~6
FDA-2000-18000-50-0.1 2~18 0~50 - 0.1 ±2dB typ. 7 2.5 500 typ. 24 3~6
FDA-2000-18000-60-0.1 2~18 0~60 - 0.1 5% typ. 6 2 - 20 3~6
FDA-2000-18000-60-10 2~18 0~60 3 10 4% 14 2.2 500 20 3~6
FDA-2000-18000-63.75-0.25 2~18 0~63.75 - 0.25 ±1.5dB typ. 7.5 2 - 25 3~6
FDA-2000-40000-31.5-0.5 2~40 0~31.5 - 10 ±2dB typ. 7 2 1000 25 3~6
FDA-4000-8000-31.5-0.5 4~8 0~31.5 - 0.5 ±0.8dB typ. 4.2 1.8 - 25 3~6
FDA-4000-8000-63.75-0.25 4~8 0~63.75 8 0.25 ±2dB typ. 2.5 1.8 - - 3~6
FDA-4000-32000-31.5-0.5 4~32 0~31.5 - 0.5 ±2dB typ. 5.5 2 1000 25 3~6
FDA-4000-32000-63.5-0.5 4~32 0~63.5 - 0.5 ±2dB typ. 10 2 200 25 3~6
FDA-6000-6400-30-1 6~6.4 0~30 - 1 ±(1+9%)dB 5.5 2 - 30 3~6
FDA-6000-18000-31.5-0.5 6~18 0~31.5 - 0.5 ±1dB typ. 5.5 2 - 25 3~6
FDA-7000-9000-32-0.25 7~9 0~32 - 0.25 ±2dB 5.5 2 - 24 3~6
FDA-8000-12000-31-1 8~12 0~31 5 1 ±2% 3.5 1.5 100 27 3~6
FDA-8000-12000-31.5-0.5 8~12 0~31.5 - 0.5 ±0.8dB typ. 4.7 2 - 25 3~6
FDA-8000-12000-63.75-0.25 8~12 0~63.75 8 0.25 ±2dB 2.8 1.8 - - 3~6
FDA-8000-12000-110-10 8~12 0~110 4 10 3~5% typ. 8 1.5 - 20 3~6
FDA-8000-18000-63.75-0.25 8~18 0~63.75 - 0.25 ±1.5dB typ. 7.5 2 - 25 3~6
FDA-8200-12400-61-1 8.2~12.4 0~61 6 1 4% 7 2.2 500 30 3~6
FDA-8500-9500-31.5-0.25 8.5~9.5 0~31.5 - 0.25 3~5% typ. 5.5 2 - 30 3~6
FDA-9000-10000-47.5-0.5 9~10 0~47.5 7 0.5 3% 5.5 1.8 100 27 3~6
FDA-12000-18000-63.75-0.25 12~18 0~63.75 8 0.25 ±2.5dB 3.7 2.5 - - 3~6
FDA-18000-40000-31.5-0.5 18~40 0~31.5 6 0.5 6% 8 2.5 500 27 3~6
FDA-18000-40000-50-0.05 18~40 0~50 10 0.05 ±2dB 9 2.5 - - 3~6
FDA-18000-50000-31.5-0.5 18~50 0~31.5 6 0.5 ±2dB typ. 11 2.5 20 typ. 25 3~6
FDA-19000-34000-63.5-0.5 19~34 0~63.5 7 0.5 2dB typ. 13 typ. 2 1μs typ. 25 3~6
FDA-26500-40000-50-0.1 26.5~40 0~50 - 0.1 ±2.5dB typ. 9 2.5 5000 typ. 24 3~6
FDA-30000-40000-30-0.5 30~40 0~30 - 0.5 3~5% typ. 5.5 1.5 - 25 3~6
FDA-35000-40000-60-0.5 35~40 0~60 7 0.5 - 15 1.5 - 15 3~6