HMC290E

ATTENUATORS - DIGITAL - SMT v01.0605 5 Typical Applications The HMC290 / HMC290E is ideal for: Cellular PCS, ISM, MMDS WLL Handset & BaseStation Functional Diagram HMC290 / 290E 2 dB LSB GaAs MMIC 2-BIT DIGITAL ATTENUATOR, 0.7 - 4.0 GHz 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 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. 5 - 36 Electrical Specifications, TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated) Parameter Frequency Min. Typical Max. Insertion Loss 0.7 - 1.4 GHz 1.4 - 2.3 GHz 2.3 - 2.7 GHz 2.7 - 4.0 GHz 0.5 0.7 0.5 0.8 0.6 0.9 0.8 1.2 Attenuation Range 0.7 - 4.0 GHz 6 Return Loss (RF1 & RF2, All Atten. States) 0.7 - 2.7 GHz 16 20 2.7 - 4.0 GHz 15 18 Attenuation Accuracy: (Referenced to Inserti...