XR-2211 데이터 시트보기 (PDF) - Exar Corporation

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XR-2211

FSK Demodulator Tone Decoder

Exar Corporation 

XR-2211

BLOCK DIAGRAM

VCC

GND

NC

1

4

9

INP 2

TIM C1 14

TIM C2 13

TIM R 12

VREF 10

COMP I 8

Pre Amplifier

VCO

Internal

VREF

Reference

Loop

q-Det

Quad

q-Det

Lock

Detect

Comparator

FSK Comp

11 LDO

3 LDF

6 LDOQ

5 LDOQN

7 DO

Figure 1. XR-2211 Block Diagram

Rev. 3.01

2

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