器件名称:
HE411B
功能描述:
Voltage Variable Attenuators
文件大小:
68.56KB 共1页
简 介:
B O WEI BOWEI INTEGRATED CIRCUITS CO.,LTD. HE411B Voltage Variable Attenuators Typical Performance Attenuation VS. Frequency 0 10 20 30 40 50 60 70 0 100 200 300 400 500 0V 15V 1.5V 0.8V 0.7V Features ●Thin film coustraction ●Hermetic package TO-8B ●Operating temperature range : -55℃ ～+85℃ Attenuation(dB) Frequency(MHz) Specifications( measured in a 50Ωsystem ,Vcc=+15V, TA=-55℃～+85℃) Parameter Frequency Range Attenuation(Max) Insertion loss DC Supply DC Current Control voltage Control Current Symbol fL～fH VSWR VS. Frequency 2.2 Unit MHz dB Guaranteed 20～500 31 1. 8 2. 0: 1 Typical – 1. 5 1. 4: 1 +15 14 0～15 0～7 0 15V 0 100 200 300 400 500 2.0 IL VCC ICC VCO ICO dB – V mA V mA VSWR AMax 33 1.8 1.6 1.4 1.2 1.0 VSWRi VSWRo VSWR of input/output VSWR – – – – Frequency(MHz) Attenuation VS. Temperature Attenuation(dB) Absolute Maximum Ratings DC Supply: +18VDC Input Power:+20dBm Storage Temp:+125℃ 5 4 3 1 2 6 1.5V 12 1V 18 Ta=+25℃ Ta=+85℃ Ta= - 55℃ TO- 8B Application Notes 1.Functional schematic shown as following,which include an internal coupling capacitor. 2.Interexchangable input and output ports 3.Cascaded with amplifier can be used as VGC amplifier 4.See assembly section for mounting method 1 2 5 4 0 100 200 300 400 500 Frequency(MHz) 0 Attenuation VS.Control voltage Attenuation(dB) 15 HExxx 3 1.VCC 2.RF input 3.GND 4.RF output 5.VCO 30 f=500MHz 45 f=100MHz 0 3 6 9 12 15 Control voltage(V) ● TEL:+86-311-87091891 87091887 ● FAX:+86……
