器件名称: 290E
功能描述: 2 dB LSB GaAs MMIC 2-BIT DIGITAL ATTENUATOR, 0.7 - 4.0 GHz
文件大小: 241.71KB 共6页
简 介:HMC290 / 290E
v01.0605
2 dB LSB GaAs MMIC 2-BIT DIGITAL ATTENUATOR, 0.7 - 4.0 GHz
Typical Applications
Features
2 dB LSB Steps to 6 dB Single Positive Control Per BIT +/-0.2 dB Typical Bit Error Miniature SOT 26 Package: 9 mm2
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ATTENUATORS - SMT
The HMC290 / HMC290E is ideal for: Cellular PCS, ISM, MMDS WLL Handset & BaseStation
Functional Diagram
General Description
The HMC290 & HMC290E are broadband 2 - bit positive control GaAs IC digital attenuators in 6 lead SOT26 surface mount plastic packages. Covering 0.7 to 4 GHz, the insertion loss is typically less than 0.7 dB. The attenuator bit values are 2 (LSB) and 4 dB for a total attenuation of 6 dB. Accuracy is excellent at ± 0.2 dB typical with an IIP3 of up to +52 dBm. Two bit control voltage inputs, toggled between 0 and +3 to +5 volts, are used to select each attenuation state at less than 50 uA each. A single Vdd bias of +3 to +5 volts applied through an external 5K Ohm resistor is required. Occupying less than 9 mm2, this is the smallest 2 - bit digital attenuator available.
Electrical Specifications,
TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Parameter Frequency 0.7 - 1.4 GHz 1.4 - 2.3 GHz 2.3 - 2.7 GHz 2.7 - 4.0 GHz 0.7 - 4.0 GHz 0.7 - 2.7 GHz 2.7 - 4.0 GHz 16 15 Min. Typical 0.5 0.5 0.6 0.8 6 20 18 Max. 0.7 0.8 0.9 1.2 Units dB dB dB dB dB dB dB
Insertion Loss
Attenuation Range Return Loss (RF1 & RF2, All Atten. States) Attenuation Accuracy: (Referenced to Insertion Loss) 2,……
