IDT (Integrated Device Technology) F1958 7-Bit Digital Step Attenuator
IDT (Integrated Device Technology) F1958 7-Bit Digital Step Attenuator (DSA) is optimized for the demanding requirements of Base Transceiver Station (BTS) radio boards and numerous other non-BTS applications. The F1958 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. The F1958 features extremely accurate attenuations levels, ensuring system gain is as close to the targeted level as possible. The F1958 DSA also features IDT Glitch-Free™ technology, which protects power amplifiers or ADC (Analog-to-Digital Converters) during transitions between attenuation states.
Features
Frequency: 1MHz to 6GHzSerial and 7-bit parallel interfaces7-bit, 0.25dB step, 31.75dB control rangeGlitch-Free™ Technology reduces transient glitches by up to 95%3.0V to 5V supplyAttenuation error: ±0.2dB at 4GHzLow insertion loss: 1.7dB at 4GHzUltra-linear IIP3: +63dBmStable integral non-linearity over temperature
Applications
3G/4G/4G+ Base Transceiver Station (BTS) systemsDistributed Antenna Systems (DAS)Remote radio heads
Documents
IDT Digital Step Attenuators Overview
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