F1956 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 pact 5 mm x 5 mm 32-pin package with 50 input and output impedance for ease of integration into the radio or RF system.
F1956 Key Features
- Serial & 7-bit Parallel Interface
- 31.75 dB Range
- 0.25 dB steps
- Glitch-FreeTM: low transient overshoot
- 500 ns settling time
- Ultra linear > 64 dBm IIP3
- Low Insertion Loss < 1.7 dB @ 4 GHz
- Attenuation error < ±0.2 dB @ 4 GHz
- Bi-directional RF use
- 3.3 V or 5 V Supply