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F1958 - 7-Bit 0.25dB Digital Step Attenuator

IDT

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Datasheet Details

Part number	F1958
Manufacturer	IDT
File Size	5.10 MB
Description	7-Bit 0.25dB Digital Step Attenuator
Datasheet	F1958-IDT.pdf

F1958 Product details

Description

The F1958 is part of IDT’s Glitch-FreeTM family of DSAs optimized for the demanding requirements of Base Station (BTS) radio cards and numerous other applications.

Features

Serial and 7-bit parallel interface.
31.75dB range.
0.25dB steps.
Glitch-FreeTM: low transient overshoot.
500ns settling time for 0.25dB steps.
Ultra linear > 63dBm IIP3.
Low insertion loss < 1.7dB at 4GHz.
Attenuation error < ±0.2dB at 4GHz.
Bi-directional RF use.
3.3V or 5V supply.
-40°C to +105°C operating temperature.
4mm x 4mm Thin QFN 24-pin package Block Diagram Figure 1. Block Diagram RF1 Glitch-FreeTM RF2 Bias Decoder SPI.

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Published: Apr 8, 2019 |