PE43705中文资料UltraCMOS® RF Digital Step Attenuator数据手册pSemi规格书

描述 Description

The PE43705 is a 50Ω, HaRP™ technology-enhanced, 7-bit RF digital step attenuator (DSA) designed for use in 3G/4G wireless infrastructure and other high performance RF applications. This DSA is a pin-compatible upgraded version of PE43703 with higher power handling and a wider frequency, control voltage and operating temperature range. An integrated digital control interface supports both serial and parallel programming of the attenuation, including the capability to program an initial attenuation state at power-up. Covering a 31.75 dB attenuation range in 0.25 dB, 0.50 dB, or 1 dB steps, it maintains a monotonic step response from 50 MHz through 8 GHz. PE43705 also features safe attenuation state transitions and is offered in a 32-lead 5 × 5 mm QFN package. In addition, no external blocking capacitors are required if 0V DC is present on the RF ports.

特性 Features

• Attenuation options: covers a 31.75 dB range in 0.25 dB, 0.5 dB, or 1.0 dB steps
• Safe attenuation state transitions
• High power handling
• High linearity: +58 dBm IIP3
• 1.8V control logic-compatible
• 105°C operating temperature
• Programming modes: Direct parallel, latched parallel, serial and serial addressable
• High-attenuation state @ power-up (PUP)
• ESD performance
• Packaging: 32-lead 5 × 5 mm QFN

简介

PE43705属于RF/IF射频/中频RFID的衰减器。由制造生产的PE43705衰减器衰减器旨在降低信号功率，同时尽量减少其对波形的影响。衰减值的范围为 0 dB 至 69 dB，频率范围为 0 至 86 GHz。