MICRF219 데이터 시트보기 (PDF) - Micrel

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MICRF219

300MHz to 450MHz ASK Receiver with RSSI, Auto-Poll, Bit-Check and Squelch

Micrel 

Micrel

Functional Diagram

MICRF219

UHF

DOWNCOVERTER

MIXER

LNA

MIXER

fLO

SYNTHESIZER

-f f

i

IMAGE

REJECT

FILTER

CONTROL

LOGIC

DESENSE

IF AMP

DETECTOR

CONTROL

LOGIC PROGRAMMABLE

FILTER

AGC

CONTROL

CAGC

RSSI

OOK

DEMODULATOR

SLICER

RSSI

SLEEP

OSCILLATOR

SLEEP

TIMER

AUTOPOLL

DO

REFERENCE

OSCILLATOR

REFERENCE

AND CONTROL

BITCHECK

WAKE-UP

SQUELCH

DO' CONTROL

LOGIC

DO'

SLICE

LEVEL

CONTROL

LOGIC

DO

CTH

Figure 1. Simplified Block Diagram

June 2011

6

M9999-060811

(408) 944-0800

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