器件名称: 288MS8E
功能描述: 2 dB LSB GaAs MMIC 3-BIT DIGITAL ATTENUATOR, 0.7 - 3.7 GHz
文件大小: 261.15KB 共6页
简 介:HMC288MS8 / 288MS8E
v01.0705
2 dB LSB GaAs MMIC 3-BIT DIGITAL ATTENUATOR, 0.7 - 3.7 GHz
Typical Applications
Features
2 dB LSB Steps to 14 dB Single Positive Control Per BIT Monotonic: ±03 dB Bit Error Typical Miniature MSOP-8 Package, 14.8mm2
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ATTENUATORS - SMT
The HMC288MS8 / HMC288MS8E is ideal for: Cellular PCS, ISM, MMDS WLL applications
Functional Diagram
General Description
The HMC288MS8 & HMC288MS8E are broadband 3bit positive control GaAs IC digital attenuators in 8 lead MSOP surface mount plastic packages. Covering 0.7 to 3.7 GHz, the insertion loss is typically less than 1.2 to 1.8 dB. The attenuator bit values are 2 (LSB), 4, and 8 dB for a total attenuation of 14 dB. Accuracy is excellent at ± 0.3 dB typical with an IIP3 of up to +51 dBm. Three bit control voltage inputs, toggled between 0 and +3 to +5V, are used to select each attenuation state at less than 50 uA each. A single Vdd bias of +3 to +5V applied through an external 5K Ohm resistor is required while occupying less than 14.8 mm2.
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 - 3.7 GHz 0.7 - 3.7 GHz 0.7 - 1.4 GHz 1.4 - 2.3 GHz 2.3 - 2.7 GHz 2.7 - 3.7 GHz 14 11 10 9 Min. Typical 1.0 1.3 1.5 1.7 14 17 15 14 12 Max. 1.4 1.7 2.0 2.3 Units dB dB dB dB dB dB dB dB dB
Insertion Loss
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to……
