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MC12040
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Product Manufacturers Pack D/C
MC12040 - - -

Pinout/Connection Diagram

mc12040 Circuit
This PLL lock indicator not only can detect a 'locked" or "off-of-lock" condition, but also even if a single pulse or transition has been missed.

 When being sampled by the flip-flop, if the V signal leads the input reference signal R and the rising edge of /i is lost, the D signal will remain hign throughout the interval, allowing the flip-flop to be clocked high (Fig. 26-2A). If the R signal leads the V signal when the transition is missed, the rising edge of the Tsignal will trigger the D signal of the phase detector, causing the LED to blink (Fig. 26-2B).

A "lock" detector often is used with a phase-locked loop (PLL) or synthesizer to indicate when the loop is phase-locked with an input signal. This circuit can be helpful, but single cycle skips usu-ally frill go undetected because of the presence of the low-pass filter.

Supplier

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  Part Number Mfg Pack D/C Qty Note
MC12040 MOT 1000
  ASC (HK) Electronic Co., Limited， China (Mainland)
Contact: Ms. shanna wei   MSN:shanna_wei@hotmail.com Tel: 0086-755-61570263, 61570276 Fax: 0086-755-61570263
MC12040 MOTOROLA N/A 550
  JY(HK)ELECTRONICS CO.,LTD Hong Kong
Contact: Ms. Claire Huang   MSN:claire-jy@hotmail.com Tel: 86-755-82887756 Fax: 86-755-82886700
MC12040 MOT PLCC 402
  Mingar Electronic (HK) Limited China (Mainland)
Contact: Ms. Kaisy   MSN:mingar.hk@gmail.com Tel: 86-755-82767182 Fax: 86-755-82767423
MC12040 MOT PLCC 10+ 100
  Goldenway Electronic Limited Company Hong Kong
Contact: Ms. sarah   Tel: 0086-755-82535329 Fax: 0086-755-
MC12040 PLCC20 2011+ MOTOROLA 550
  HK Chuanghua Electronic Company Hong Kong
Contact: Ms. Nice Lu   MSN:nice19881@live.cn Tel: 00852-97966836-86-0755-83423012 Fax: 00852-97966836-86-15017966836
MC12040 MOTOROLA 42 RFQ,CALL FOR PRICE
  Grand Parts Electronics Corporation China (Mainland)
Contact: Ms. Anna   Tel: 86-755-8281-4478 Fax: 86-755-8281-4458
MC12040 MOTOROLA PLCC 10+ 600
  Beford Enterprises Ltd China (Mainland)
Contact: Ms. Sea   MSN:Beford17@hotmail.com Tel: 86-0755-83228351 Fax: 86-0755-23486252
MC12040 MOTOROLA PLCC 08+ 3600
  Mega Group Ic Ltd China (Mainland)
Contact: Ms. CherryWang   MSN:megagroupic@hotmail.com Tel: 86-0755-85274661 Fax: 86-0755-85274661
MC12040 MOTOROLA PLCC 15000 New and original sample can be provided
  UNION TECHNOLOGY (HK) TRADING COMPANY LIMITED China (Mainland)
Contact: Mr. Kevin   MSN:union-hk@live.com Tel: 0086-755-82813231/ 82813232 Fax: 0086-755-82813230
MC12040 MOT PLCC N/A 2010 New original in stock
  Xing Cheng Electronics Co.,Ltd China (Mainland)
Contact: Mr. Guo   MSN:stxcdz@hotmail.com MSN:guopen@live.com Tel: 86-0754-84462652 Fax: 86-0754-84462652
MC12040 MOT PLCC N/A 100
  AllPurpose Electronics Co.,Ltd China (Mainland)
Contact: Mr. Sandi   MSN:ap-ec@hotmail.com Tel: 86-0754-84496014 Fax: 86-0754-84496014
MC12040 MOTOROLA DIP 03+ 142
  ANTECH ENTERPRISE LIMITED China (Mainland)
Contact: Ms. Christina Cheung   MSN:christina-cheung@hotmail.com Tel: 86-0755-82767565 Fax: 86-0755-23816815
MC12040 N/A N/A 18588
  HONGKONG XUMEI ELECTRONICS CO. LIMITED China (Mainland)
Contact: Mr. Kate Fan   MSN:xumeidz002@hotmail.com Tel: 86-755-83267283 Fax: 86-755-83266796
MC12040 ON 97+ PLCC 1
  JinYang Electronics Technology International Co., Ltd China (Mainland)
Contact: Ms. Yoyo   MSN:jinyangelectronics@hotmail.com Tel: 0086-755-83686420 Fax: 0086-755-83275511
MC12040 09+ 2202 PLCC20
  ANGEL TECHNOLOGY ELECTRONICS CO. China (Mainland)
Contact: Ms. Cherry Lian   MSN:angeltech1@live.cn Tel: 86-755-82514710 Fax: 86-755-83514725
MC12040 MOTOROLA DIP 142 03+
  Edian Electronics Company China (Mainland)
Contact: Ms. cheung trammy   MSN:focosales@hotmail.com Tel: 86-755-82521939,23815519,83230734 Fax: 86-755-23815519
MC12040 MOTOROLA PLCC 07+ 550 new and original best price.
  Dedicate electronics limited China (Mainland)
Contact: Mr. kent   MSN:dedicate-dz@hotmail.com Tel: 86-0755-82814566 Fax: 86-0755-82814577
MC12040 MOTOROLA PLCC 99+ 100
  Wisher Tech (HK) Co., Ltd China (Mainland)
Contact: Mr. David Wu   MSN:wuchengfu711022@msn.cn Tel: +86-0755-27570452 Fax: +86-0755-27570452
MC12040 MOT PLCC 456 STOCK
  YangCheng Electronics IntL Ltd. China (Mainland)
Contact: Ms. Albbe Lee   MSN:yc-icsz@hotmail.com Tel: 86-755-83971295 Fax: 86-755-83014402
MC12040 PLCC 2005+- 637
  ZHENGKE ELECTRONICS INT'L LIMITED  China (Mainland)
Contact: Ms. Anita   MSN:zkAnnita@hotmail.com Tel: 86-0755-82736678 Fax: 86-0755-83222267
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PDF / Datasheet

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