SM5166AV

NIPPON PRECISION CIRCUITS—10

NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to

improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for

the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits

are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision

Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification.

The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or

malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter,

including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or

indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies.

NIPPON PRECISION CIRCUITS INC.

4-3, 2-chome Fukuzumi

Koutou-ku, Tokyo 135-8430, Japan

Telephone: 03-3642-6661

Facsimile: 03-3642-6698

NC9610BE

1997.05

NIPPON PRECISION CIRCUITS INC.

Phase Comparator Timing Diagram

The DO output circuit polarity is configured for

connection to an external passive filter.

The signals compared are FV and FR, which are the

internal operating frequency divider output signal

and reference frequency divider output signal,

respectively.

The timing and passive filter basic structure are

shown in figures 7 and 8, respectively.

Figure 7. Phase detector timing

Figure 8. Passive filter

FR

FV

DO

LD

DO

C

R2

R1

VCO