MC14569B 데이터 시트보기 (PDF) - ON Semiconductor

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MC14569B

Programmable Divide−By−N Dual 4−Bit Binary/BCD Down Counter

ON Semiconductor 

MC14569B

TYPICAL APPLICATIONS

fin

C

CF

Q

MC14569B

ZERO DETECT

CF

C MC14522B Q4

OR

PE MC14526B 0"

CF

C MC14522B Q4

OR

PE MC14526B 0"

Q1/C2

MC14568B

PE

0"

DP0 − − − − − − DP3

DP0 − − − − − − DP3

DP0 − − − − − − DP3

LSD

MSD

fout

Figure 3. Cascading MC14568B and MC14522B or MC14526B with MC14569B

(40 kHz)

VSS

PCin

PCout

C1

G

CT1

F

0"

Q1/C2

PE

DP0 − − − − DP3

VSS

VSS

Q

CF

MC14569B C

ZERO DETECT

VCO

MC14011

fout

(144 − 146 MHz)

VDD

MIXER

2k

Frequencies shown in parenthesis are given as an example

2M

CRYSTAL

OSCILLATOR

(143.5 MHz)

Figure 4. Frequency Synthesizer with MC14568B and MC14569B Using a Mixer

(Channel Spacing 10 kHz)

http://onsemi.com

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