HCTL-2001-A00 View Datasheet(PDF) - Avago Technologies

Part Name

Description

Manufacturer

HCTL-2001-A00

(HCTL2017 / HCTL2021) Quadrature Decoder/Counter Interface ICs

Avago Technologies 

CHA

CK

D

Q

D

Q

D

Q

D

Q

CHB

D

Q

D

Q

D

Q

D

Q

CK

Figure 7. Simplified Digital Noise Filter Logic

3 t CLK

CLK

CHA

tE

CHB

Noise Spike

CHA

filtered

CHB

filtered

CHI

filtered

tE

tES

tES

tES

tES

tE

tE

Figure 8. Signal Propagation through Digital Noise Filter

J

Q

CK

K

CHA

filtered

J

Q

CK

K

CHB

filtered

9

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