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CHT4012-QDG/20 United Monolithic Semiconductors
Attenuator - Digitally Controlled
MFG Part Number: CHT4012-QDG

The CHT4012-QDG is a DC-6GHz monolithic 6-bit digital attenuator with a LSB = 0.5dB offering a high dynamic range and a high accuracy, the RMS amplitude error is typically as low as 0.3dB.  The circuit provides low insertion loss 2.5dB associated to input and output return losses better than 13dB.  A CMOS and TTL compatible interface is available on chip.

It is designed for a wide range of applications, from military to commercial communication systems.  The circuit is manufactured with a pHEMT process, 0.25µm gate length, via holes through the substrate, air bridges and electron beam gate lithography.  It is supplied in RoHS compliant SMD package.

Key AttributesValue
Frequency Range : Minimum Frequency0 MHz
Frequency Range : Maximum Frequency6000 MHz
Control Accuracy6 Bits
Step Size0.5 dB
Attenuation Control Range (dB31.5 dB
Insertion Loss2.5 dB
P1dB20 dBm
Input IP3
Control Type (TTL, -5V)CMOS/TTL
Package TypeQFN
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