MSRFIF datasheet(1/4 Pages) MSI

部件名	MSRFIF

功能描述	Radio Frequency Interface Front End

PDF	4 Pages

Scroll/Zoom	100%

制造商	MSI [Mixed Signal Integration]

网页	https://www.mix-sig.com

标志

1 / 4 page

Description

This integrated circuit provides a charge pump

and ASK/PSK demodulation/modulation for self

powered or passive backscatter applications.

The

device meets FCC 47CFR18.307 for transmit

power level.

The MSRFIF operates from 50 Hz up to 250

MHz. The MSRFIF requires no batteries to func-

tion. The device is powered by RF energy from

the reader.

The RFIF has a voltage output for

powering microcontrollers, preamps and other cir-

cuits. The MSRFIF includes the duplexer for a

transmitter and receiver to share the same anten-

na.

Demodulated data is provided on the DEMOD pin

or pad for connection to a microprocessor for

decoding.

The MOD1/2 inputs

provides modu-

lation of the ID from the microprocessor.

No battery is needed for low power processors

(less than 50

μA). A received signal strength

detector keeps the logic off until a strong enough

signal is received. PDO output provides a trigger

only when RSSI is activated.

The MSRFIF is available in die form and in an

8-pin TSSOP or SOIC package for evaluation.

Features

Up to 250 MHz Operation

AM modulation and AM demodulation

with Pin Selectable AM modulation depth

Bi-Phase PSK demodulation

Receive Signal Strength Power Saving Circuit

8 Pin Package and die form

DC output for low power controllers (50

μA)

Applications

Remote Medical Reading and Monitors

Theft Detection

Security Systems

Inventory Control

Access Cards

Automotive Key Identification

Pet Identification

Mobile Commerce

Airline Baggage Identification

Sensor Transceiver

Absolute Maximum Ratings

Power Supply Voltage

+6V

Storage Temperature Range

-60 to +150o C

Operating Temperature Range

-40 to +85o C

Radio Frequency Interface Front End

Data Sheet

2/2010

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VDD

DUPLEXER

RF

RX

DATAOUT

MOD1

TX

MOD2

PD

VSS

TRANSMITTER

CHARGE

PUMP

RSSI

POWER

DOWN

ASK/PSK

DEMODULATOR

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