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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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F1952 데이터시트(PDF) 1 Page - Renesas Technology Corp |
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F1952 데이터시트(HTML) 1 Page - Renesas Technology Corp |
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1 / 21 page  © 2021 Renesas Electronics Corporation 1 Sep 28, 2021 DESCRIPTION This document describes the specification for the F1951 Digital Step Attenuator. The F1951 is part of a family of Glitch-FreeTM DSAs optimized for the demanding requirements of communications Infrastructure. These devices are offered in a compact 4x4 QFN package with 50 Ω impedances for ease of integration into the radio system. COMPETITIVE ADVANTAGE Digital step attenuators are used in Receivers and Transmitters to provide gain control. The F1951 is a 6- bit step attenuator optimized for these demanding applications. The silicon design has very low insertion loss and low distortion (+65 dBm IP3I.). The device has pinpoint accuracy and settles to final attenuation value within 400 nsec. Most importantly, the F1951 includes Renesas’ Glitch-FreeTM technology which results in less than 0.6 dB of overshoot ringing during MSB transitions. This is in stark contrast to competing DSAs that glitch as much as 10 dB during MSB transitions (see p.10). Lowest insertion loss for best SNR Glitch-FreeTM when transitioning – won’t damage PA or ADC Extremely accurate with low distortion APPLICATIONS • Base Station 2G, 3G, 4G, TDD radiocards • Repeaters and E911 systems • Digital Pre-Distortion • Point to Point Infrastructure • Public Safety Infrastructure • WIMAX Receivers and Transmitters • Military Systems, JTRS radios • RFID handheld and portable readers • Cable Infrastructure PART# MATRIX Part# Freq range (MHz) Resolution / Range (dB) Control IL (dB) Pinout F1951 100 - 5000 0.50 / 31.5 Serial Only -1.2 HITT F1950 150 - 5000 0.25 / 31.5 Serial Only -1.3 PE F1952 100 – 4000 0.50 / 15.5 Serial Only -0.9 HITT FEATURES • Glitch-FreeTM, < 0.6 dB transient overshoot • Spurious Free Design • 3 V to 5.25 V supply • Attenuation Error < 0.2 dB @ 2 GHz • Low Insertion Loss < 1.2 dB @ 2 GHz • Excellent Linearity +65 dBm IP3I • Fast settling time, < 450 ns • Class 2 JEDEC ESD (> 2kV HBM) • Serial Interface 31.5 dB Range • Stable Integral Non-Linearity over temperature • 4x4 mm Thin QFN 24 pin package BLOCK DIAGRAM RF1 Bias VDD DEC RF2 RSTb CLK SPI CSb SDI SDO ORDERING INFORMATION F1951NBGI8 0.8 mm height package Green Industrial Temp range Tape & Reel Glitch-FreeTM Glitch-FreeTM |
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