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F1978 Digital Step Attenuator

F1978 Description

6-Bit, 75Ω Digital Step Attenuator 5MHz to 3GHz F1978 Datasheet .
The F1978 Digital Step Attenuator (DSA) is a product in IDT’s Glitch-FreeTM DSA Family, which is optimized for the demanding requirements of CATV and.

F1978 Features

* Frequency: 5MHz to 3000MHz
* Serial and 6-bit parallel interface
* 31.5dB control range
* 0.5dB step
* Glitch-FreeTM technology, low transient overshoot
* 3.0V to 5.25V supply
* 1.8V or 3.3V control logic
* Attenuator step error: 0.1dB at 1GHz
* Low insertion lo

F1978 Applications

* The silicon design has very low insertion loss and low distortion (+64dBm IIP3). The device has pinpoint attenuation accuracy. Most importantly, the F1978 includes IDT’s Glitch-FreeTM technology, which results in low overshoot and ringing during most significant bit (MSB) transitions.
* Glitch-

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