전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

MCH12140 데이터시트(PDF) 4 Page - ON Semiconductor

부품명 MCH12140
상세설명  Phase-Frequency Detector
Download  5 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  ONSEMI [ON Semiconductor]
홈페이지  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MCH12140 데이터시트(HTML) 4 Page - ON Semiconductor

  MCH12140_06 Datasheet HTML 1Page - ON Semiconductor MCH12140_06 Datasheet HTML 2Page - ON Semiconductor MCH12140_06 Datasheet HTML 3Page - ON Semiconductor MCH12140_06 Datasheet HTML 4Page - ON Semiconductor MCH12140_06 Datasheet HTML 5Page - ON Semiconductor  
Zoom Inzoom in Zoom Outzoom out
 4 / 5 page
background image
MCH12140, MCK12140
http://onsemi.com
4
APPLICATIONS INFORMATION
The 12140 is a high speed digital circuit used as a phase
comparator in an analog phase-locked loop. The device
determines the “lead” or “lag” phase relationship and time
difference between the leading edges of a VCO (V) signal
and a Reference (R) input. Since these edges occur only once
per cycle, the detector has a range of
±2p radians.
The operation of the 12140 can best be described using the
plots of Figure 2. Figure 2 plots the average value of U, D
and the difference between U and D versus the phase
difference between the V and R inputs.
There are four potential relationships between V and R: R
lags or leads V and the frequency of R is less than or greater
than the frequency of V. Under these four conditions the
12140 will function as follows:
Figure 2. Average Output Voltage vs. Phase Difference
VOH − VOL
2
−2p
−pp
2p
U
Fv > Fr
R lags V
VOH
Fv < Fr
R leads V
VOH − VOL
2
D
VOH
VOH − VOL
2
U−D
VOL − VOH
2
−2p
−pp
2p
−2p
−pp
2p
R lags V in phase
When the R and V inputs are equal in frequency and the
phase of R lags that of V the U output will stay HIGH while
the D output will pulse from HIGH to LOW. The magnitude
of the pulse will be proportional to the phase difference
between the V and R inputs reaching a minimum 50% duty
cycle under a 180
° out of phase condition. The signal on D
indicates to the VCO to decrease in frequency to bring the
loop into lock.
V frequency > R frequency
When the frequency of V is greater than that of R the
12140 behaves in a similar fashion as above. Again the
signal on D indicates that the VCO frequency must be
decreased to bring the loop into lock.
R leads V in phase
When the R and V inputs are equal in frequency and the
phase of R leads that of V the D output will stay HIGH while
the U output pulses from HIGH to LOW. The magnitude of
the pulse will be proportional to the phase difference
between the V and R inputs reaching a minimum 50% duty
cycle under a 180
° out of phase condition. The signal on U
indicates to the VCO to increase in frequency to bring the
loop into lock.
V frequency < R frequency
When the frequency of V is less than that of R the 12140
behaves in a similar fashion as above. Again the signal on U
indicates that the VCO frequency must be decreased to bring
the loop into lock.
From Figure 2 when V and R are at the same frequency and
in phase the value of U − D is zero thus providing a zero error
voltage to the VCO. This situation indicates the loop is in lock
and the 12140 action will maintain the loop in its locked state.
ORDERING INFORMATION
Device
Package
Shipping
MCH12140D
SOIC−8
98 Units / Rail
MCH12140DG
SOIC−8
(Pb−Free)
98 Units / Rail
MCH12140DR2
SOIC−8
2500 / Tape & Reel
MCH12140DR2G
SOIC−8
(Pb−Free)
2500 / Tape & Reel
MCK12140D
SOIC−8
98 Units / Rail
MCK12140DG
SOIC−8
(Pb−Free)
98 Units / Rail
MCK12140DR2
SOIC−8
2500 / Tape & Reel
MCK12140DR2G
SOIC−8
(Pb−Free)
2500 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.


유사한 부품 번호 - MCH12140_06

제조업체부품명데이터시트상세설명
logo
ON Semiconductor
MCH12140D ONSEMI-MCH12140D Datasheet
49Kb / 4P
   Phase-Frequency Detector
April, 2004 ??Rev. 7
MCH12140DR2 ONSEMI-MCH12140DR2 Datasheet
49Kb / 4P
   Phase-Frequency Detector
April, 2004 ??Rev. 7
MCH12140DR2G ONSEMI-MCH12140DR2G Datasheet
49Kb / 4P
   Phase-Frequency Detector
April, 2004 ??Rev. 7
More results

유사한 설명 - MCH12140_06

제조업체부품명데이터시트상세설명
logo
Motorola, Inc
MCH12140 MOTOROLA-MCH12140 Datasheet
71Kb / 4P
   PHASE-FREQUENCY DETECTOR
logo
LANSDALE Semiconductor ...
ML4344 LANSDALE-ML4344 Datasheet
6Mb / 5P
   Phase Frequency Detector
ML12040 LANSDALE-ML12040_05 Datasheet
2Mb / 5P
   Phase-Frequency Detector
logo
Motorola, Inc
MC12040 MOTOROLA-MC12040 Datasheet
68Kb / 5P
   Phase-Frequency Detector
logo
ON Semiconductor
MCK1214 ONSEMI-MCK1214 Datasheet
49Kb / 4P
   Phase-Frequency Detector
April, 2004 ??Rev. 7
logo
Agere Systems
LUCDA4044 AGERE-LUCDA4044 Datasheet
210Kb / 6P
   Phase Frequency Detector
logo
Motorola, Inc
MC4344 MOTOROLA-MC4344 Datasheet
1Mb / 18P
   PHASE-FREQUENCY DETECTOR
logo
LANSDALE Semiconductor ...
ML12040 LANSDALE-ML12040 Datasheet
86Kb / 1P
   PHASE FREQUENCY DETECTOR
logo
ON Semiconductor
MC100LVEL40 ONSEMI-MC100LVEL40 Datasheet
72Kb / 3P
   Phase-Frequency Detector
1997 REV 0
logo
LANSDALE Semiconductor ...
ML4044 LANSDALE-ML4044_08 Datasheet
7Mb / 5P
   Phase Frequency Detector
More results


Html Pages

1 2 3 4 5


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com