HE752 B O WEI 4-Bit Digital step Attenuators BOWEI INTEGRATED CIRCUITS CO.,LTD. Typical Performance I . L(dB) Insertion Loss VS. Frequency Features Range:20～200MHz ●Maximum attenuation:30dB ●Accurate attenuation ●Hermetic package DIP-14A ●Operating temperature range : -55℃ ～+85℃ Ta=+85℃ Ta=+25℃ Ta=-55℃ -1 -2 -3 -4 ●Frequency 100 10 Frequency(MHz) VSWR VS. Frequency Specifications( measured in a 50Ωsystem ,Vcc=±5V, TA=-55℃～+85℃) Unit Typical Guaranteed Frequency Range fL～fH MHz 20～200 15～200 Insertion loss I.L dB 4.0 3.0 Attenuation Range A dB 30.0±2 .0 30 .0±0.8 Attenuation step Att dB 2 2 Attenuation Accuracy – dB VSWR – 2.0:1 1.5:1 V co – TTL – Switching speed T on t us – １．２（Ｔｏｎ） １．２（Ｔｏｆｆ） Control Current Icc mA – 10 VSWR Control voltage VSWRi 1.4 1.2 1.0 10 200 100 Frequency(MHz) Attenuation VS. Frequency 0 ±0.3(2,4,8 dB) ±0.1 ±0.2 ±0.4(16 dB) 2dB 4dB 8dB 10 16dB 20 30 30dB 200 100 10 Frequency(MHz) Absolute Maximum Ratings DC Supply: +6VDC Input Power:+20dBm Storage Temp:+125℃ VSWRo 1.6 Attenuation(dB) Symbol VSWR 1.8 Parameter 200 PIN Connection 8 7 6 5 4 3 2 1 9 10 11 12 13 14 15 16 DIP-16 Application Notes 1 . Specificed frequency rang,attenuation packages are available 2 . Interexchangable input and output ports 3 . Logic 0:Insertion Loss ; Logic 1:Attenuation 4 . Specified attenuation step (3,6,12,24dB) is available 5.ESD observe handing precautions 6.Please add power first when use,make sure control port contact with low level PIN Function 2 3 5 6 PIN Function 2dB 4 V CC 4dB 14 RFi 8dB 8 RFo 9-13 GND 1, 7 N/C 16dB HEXXX ● TEL:+86-311-87091891 87091887 ● FAX:+86-311-87091282 ● http://www.cn-bowei.com ● E-mail:[email protected] 21