آر اف (فرکانس رادیویی) و بی‌سیم سایر آی سی‌ و ماژول‌های آر اف

Product Attributes

Introduction

The QE202 is a versatile 1x Active EMI management IC designed to provide system wide reduction of Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI) from clock and data sources. The QE202 allows significant system cost savings by reducing the number of circuit board layers, ferrite beads, shielding and other passive components that are traditionally required to pass EMI regulations. The QE202 family of mobile active EMI management ICs is unique in its design and is based on the phase controlled active EMI management technology. This allows operation on aperiodic as well periodic signals. By the precise placement of the edges of the reconstructed input signal, the peak energy of the output is distributed over a wider and controlled energy band thereby significantly lowering system EMI compared to the typical narrow band signal produced by oscillators and most frequency generators. The QE202 has an input frequency range of 10MHz to 38MHz over a wide voltage range of 1.65V to 3.6V. The device can be placed in a “power save mode” by setting the PDB pin to GND where in it draws typically 0.1uA and also sets the MODOUT pin to a High-Z state. The device has two “deviation control pins” SS1 and SS0 to allow flexibility and optimization of both EMI compliance as well as in system design. The device is available in 8 pin DFN package.

Features

• FCC approved method of EMI attenuation Non-PLL phase controlled active EMI management architecture Generates a 1X low EMI Phase Modulated replication of the input signal
• VDD 1.65V~2.0V, 10MHz to 38MHz
• VDD 2.5V~3.6V, 10MHz to 38MHz
• Multiple Deviation Selections
• Minimum frequency deviation selection capability
• Power Down Mode
• 8-pin WDFN package Supports automotive reliability standard: AEC-Q100 Grade 1 and Grade 2 certified

Applications

• mobile platforms such as cell phones, MIDs, Netbooks and other "power and space" sensitive applications