1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR
Attenuators - Digital - Chip
v01.0511
Typical Applications
The HMC939 is ideal for: • Fiber Optics & Broadband Telecom ...
Description
Attenuators - Digital - Chip
v01.0511
Typical Applications
The HMC939 is ideal for: Fiber Optics & Broadband Telecom Microwave Radio & VSAT Military Radios, Radar & ECM Space Applications
HMC939
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 40 GHz
Features
1.0 dB LSB Steps to 31 dB Single Positive Control Line Per Bit ±1.0 dB Typical Bit Error High Input IP3: +43 dBm Die Size: 2.29 x 0.95 x 0.1 mm
Functional Diagram
General Description
The HMC939 die is a broadband 5-bit GaAs IC digital attenuator MMIC chip. Covering 0.1 to 40 GHz, the insertion loss is less than 5 dB typical. The attenuator bit values are 1.0 (LSB), 2, 4, 8, 16 for a total attenuation of 31 dB. Attenuation accuracy is excellent at less than ±1.0 dB typical step error with an IIP3 of +43 dBm. Five control voltage inputs, toggled between +5V and 0V, are used to select each attenuation state.
0-1
Electrical Specifications, TA = +25° C, With Vdd = +5V, Vss = -5V & VCTL = 0/ +5V
Parameter
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