XR2212 データシートの表示（PDF） - Exar Corporation

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XR2212

Precision Phase-Locked Loop

Exar Corporation 

XR-2212

Signal

Input

0-DET

Input

VCO

Voltage

Output

VCO

Current

Output

Pre

Amp

Phase

Detector

AMP

Loop

Filter

VCO

+

-

Op Amp

Phase

Quadrature

Output

Figure 2. Functional Block Diagram of XR-2212 Precision PLL System

2

0.1mF

Input

Signal

0.1mF

%N

External

Divider

(Optional)

Phase

Detector

16

10

C1

9

7

ÁÁÁÁRF

RC

R3

11

0.1mF

R1

5

12

VCO

14

13

R0

CO

VCC

6

RL

5.6K

8

CO

Demod

Output

Internal

Reference

Rev. 2.01

Figure 3. Generalized Circuit Connection for FM Detection, Signal

Tracking or Frequency Synthesis

5

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