F1956 Overview
This document describes the specification for the F1956 Digital Step Attenuator. The F1956 is part of Renesas’ 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 pact 5 × 5 mm 32-pin package with 50Ω input and output impedance for ease of integration into the radio or RF system.
F1956 Key Features
- Serial and 7-bit Parallel Interface
- 31.75dB Range
- 0.25dB steps
- Glitch-FreeTM: low transient overshoot
- 500ns settling time
- Ultra linear > 64dBm IIP3
- Low Insertion Loss < 1.7dB at 4GHz
- Attenuation error < ±0.2dB at 4GHz
- Bi-directional RF use
- 3.3V or 5V Supply
