ATR4253C-PVQW-76

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Function:	Antenna Amplifier
Frequency:	76MHz ~ 108MHz
RF Type:	FM
Secondary Attributes:	--
Package / Case:	16-VFQFN Exposed Pad
Supplier Device Package:	16-VQFN (3x3)

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RF Misc ICs and Modules: ATR4253C-PVQW-76

The ATR4253C-PVQW-76 is an integrated RF system from Analog Techniques, Inc., which is a part of the RF misc ICs and Modules category. This highly integrated solution merges the signal amplification and RF detection functions of transceivers, transponders, and receivers into a single-package solution. It is designed to provide excellent noise immunity, robustness, and ultra-low power consumption at very low costs.

Application Field and Working Principle

The ATR4253C-PVQW-76 is primarily used in a wide range of radio frequency (RF) communication systems. Typical applications range from automotive remote keyless entry systems, to wireless security systems, to wireless headset systems, as well as a variety of wireless data links. In addition, this IC is ideally suited for use in signal transceiver applications, where both signal transmittance and reception capabilities are required.The ATR4253C-PVQW-76 operates in both CW (continuous wave) and pulse modulation modes, allowing for fast and accurate signal transmission and reception. It features a dual antenna input, allowing it to operate in diversity mode and providing superior link reliability and reduced interference. The IC’s onboard crystal oscillator ensures that the correct frequency is transmitted and received. In addition, it has built-in output power control, a two-stage variable attenuator, and a programmable gain amplifier to fine-tune the received signal.The ATR4253C-PVQW-76 also features an on-board digital signal processing (DSP) unit, which provides a range of signal processing functions. These include digital AGC control to improve sensitivity and linearity, increase signal-to-noise ratio, and reduce distortion. Other features include adjustable RX/TX band edge filters, built-in de-sense protection, carrier/frequency hopping, and programmable fractional noise cancellation. The DSP unit also helps to achieve superior audio quality for wireless headsets, speakers, and car hands free systems.The ATR4253C-PVQW-76 also includes an analog-to-digital (A/D) converter, which is used to convert the received analog signal into a digital one. This allows the signal to be processed within the onboard DSP unit in order to further improve signal quality. The on-board user interface includes a variety of serial ports, enabling the IC to be used in a wide range of communication applications.Overall, the ATR4253C-PVQW-76 offers a cost effective and power efficient solution for a wide range of RF communication applications. With its on-board digital signal processing and analog-to-digital converter, it provides excellent signal quality and robust link reliability.

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