PE43665数据手册pSemi中文资料规格书

描述 Description

The PE43665 is a 75Ω, high-linearity, 6-bit RF digital step attenuator (DSA) covering a 31.5 dB attenuation range in 0.5 dB steps. The PE43665 provides both a parallel (latched or direct mode) and serial CMOS control interface, operates on a single 3V supply and maintains high attenuation accuracy over frequency and temperature. It also has a unique control interface that allows the user to select an initial attenuation state at power-up. The PE43665 exhibits very low insertion loss and low power consumption. This functionality is delivered in a 4 × 4 mm QFN footprint.

特性 Features

• 75Ω impedance
• Attenuation: 0.5 dB steps to 31.5 dB
• Low distortion for CATV and multi-carrier applications
• Flexible parallel and serial programming interfaces
• Unique power-up state selection
• Positive CMOS control logic
• High attenuation accuracy and linearity over temperature and frequency
• Very low power consumption
• Single-supply operation
• Package: 20-lead 4 × 4 mm QFN