IDTF1916

F1956 Datasheet 7-Bit 0.25 dB Wideband Digital Step Attenuator 1 to 6000 MHz GENERAL DESCRIPTION This document describes the specification for the F1956 Digital Step Attenuator. The F1956 is part of IDT’s Glitch-FreeTM family of DSAs optimized for the demanding requirements of Base Station (BTS) radio cards and numerous other non-BTS applications. This device is offered in compact 5 mm x 5 mm 32-pin package with 50  input and output impedance for ease of integration into the radio or RF system. COMPETITIVE ADVANTAGE The F1956 offers very high reliability due to its construction from a monolithic silicon die in a QFN package. The insertion loss is very low with minimal distortion. Additionally the device is designed to have extremely accurate attenuations levels. These accurate attenuation level improves system SNR and/or ACLR by ensuring system gain is as close to targeted level as possible. Also, the very fast settling time in parallel mode is ideal for fast switching systems. Finally, the device is Glitch-FreeTM with less than 2 dB of ringing across the attenuation range in stark contrast to competing DSAs that glitch as much as 10 dB during MSB state changes.  Lowest insertion loss for best SNR  Glitch-FreeTM technology to protect PA or ADC during transitions between attenuation states.  Extremely accurate attenuation levels  Ultra low distortion  MSL1 and 2000 V HBM ESD ORDERING INFORMATION Tape & Reel F1956NBGI8 Green FEATURES  Serial & 7-bit Parallel Interfac...