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M/A-COM Announces 1-Bit Digital Attenuator for CATV Applications

Wed, 08/24/2011 - 7:53am

M/A-COM Technology Solutions  introduced a 1-Bit digital attenuator for CATV and set-top box (STB) front end applications. The MAAD-010305 is a 15 dB step GaAs MMIC digital attenuator. It is designed to condition cable input signals to the STB. The device is ideally suited for use where high accuracy, very low power consumption, and low intermodulation products are required.

“We are very pleased to continue the expansion of our 75 O product portfolio with the introduction of this highly linear, 15 dB digital attenuator,” said Graham Board, Product Manager. “This device is ideally suited for use in high volume, cost sensitive customer premises equipment.”

The table below outlines typical part number performance:

Parameters 

Units

MAAD-010305

Insertion Loss dB  0.3
Attenuation dB 15
Input Return Loss dB 14
Output Return Loss dB 14
Input IP3 dBm 46
P1dB dBm 20
CTB (157 Channels, PIN = 35 dBmV/Ch) dBc 70
CSO(157 Channels, PIN = 35 dBmV/Ch) dBc 66
Transients mV 20
Package   SOT-25


The MAAD-010305 is fabricated as a monolithic GaAs integrated circuit using a mature pHEMT process. The process features full chip passivation for performance and reliability. The attenuator is designed for operation from DC to 1.1 GHz. It is packaged in a RoHS compliant lead free SOT-25, five-lead surface mount plastic package. The MAAD-010305 is characterized by low insertion loss and allows for positive and negative voltage control, complimented by 75 O impedance.

Production quantities and samples of MAAD-010305 are available from stock. Final datasheets and additional product information can be obtained from the M/A-COM Tech website at www.macomtech.com


M/A-COM Technology Solutions: www.macomtech.com

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