Tone Detector

3

MX105A PRELIMINARY INFORMATION

© 1997 MX•COM, INC.

www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054

Doc.# 20480133.003

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA

All trademarks and service marks are held by their respective companies.

1. Block Diagram

Loop

Filter

Detect

Filter

Timing

Logic

VCO

Detect Counter

- +

-

V/2

DD

Tone In

C4

R2

R3

C5

Input Amp

C6

R1

Detect

Out

R4

7

8

4

2

1

3

16

5

6

10

9

14

15

13

12

11

MX105A

- +

Figure 1: Block Diagram