CHT3029-99F - United Monolithic Semiconductors

CHT3029-99F DC-35GHz 4 Bit Digital Attenuator

The CHT3029-99F is a very wide band digital attenuator, which integrates 4 bits with a LSB of 1dB and provides a dynamic range of 15dB from DC to 35GHz. 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 .

Features

■ Broadband performances: DC-35GHz
■ Insertion Loss (state 0): 4.5dB
■ RMS attenuation error: 0.2dB
■ Return Losses: 12dB
■ DC bias: V+=5V and V-=-5V
■ No internal DC Block at Input and Output RF accesses
■ Chip size 2.61 x 1.56mm² Main Electrical Characteristics Tamb.= +25°C Symbol Freq IL Rms_att_er Dyn Parameter Frequency range Insertion Loss RMS of attenuation error Dynamic Min Typ Max Unit DC 35 GHz 4.5 dB 0.2 dB 15 dB Ref. : DSCHT302.