鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng)
鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺
銆�銆�閻樻尟灏辨槸鏅傞悩鏅舵尟锛�鐭宠嫳鏅堕珨鎸暕鍣�鐨勪織绋便�傚垎鐐鸿布鐗囧拰鎻掍欢鐨�锛屽叾涓布鐗囩殑鏈�7*5mm锛�5*3.2mm锛�3*2.5mm鐨�銆傛彃浠剁殑鍒嗗叏灏哄鍜屽崐灏哄锛岄兘鏄�4鍊嬭叧,宸ヤ綔闆诲鏈�3.3V鍜�5V鐨勶紝杓稿嚭娉㈠舰鏈夋柟娉㈠拰姝ｇ巹娉�銆�
銆�銆�姒傚康鐨勫崁(q奴)鍒�
銆�銆�1.鏅舵尟
銆�銆�寰炴蹇典笂鐪�锛屾櫠鎸細鍗虫墍璎傛櫠楂旇鎸櫒锛堢啊绋辨櫠楂旓級鍜屾櫠楂旀檪閻樻尟钑╁櫒锛堢啊绋遍悩鎸級鐨勭当(t菕ng)绋便�備笉閬庣敱浜庡湪娑堣不(f猫i)椤為浕瀛愮敘(ch菐n)鍝佷腑锛岃鎸櫒鐢ㄧ殑鏇村锛屾墍浠ヤ竴鑸殑姒傚康涓妸鏅舵尟灏辩瓑鍚屼簬璜ф尟鍣ㄧ悊瑙ｄ簡銆�
銆�銆�鍗抽�氬父鍦ㄤ汉鍊戝彛闋笂锛屾櫠楂旇鎸櫒-->鏅舵尟-->鏅堕珨锛屾櫠楂旀檪閻樻尟钑╁櫒-->閻樻尟銆�
銆�銆�寰炴蹇典笂鐪嬶紝鏅堕珨璜ф尟鍣ㄤ竴鑸湁浠ヤ笅骞鹃锛�
銆�銆�Ceramic Resonator:闄剁摲璜ф尟鍣�銆備竴鑸偤鍏╁�嬭叧鐨勯櫠鐡峰皝瑁濓紝鍏跺収(n猫i)閮ㄧ偤RC璜ф尟锛岃几鍑虹殑鐐烘寮︽尝銆�
銆�銆�Crystal Resonator:绋辩煶鑻辨櫠楂旇鎸櫒銆備竴鑸偤鍏╁�嬭叧鐨勯噾灞皝瑁�锛岃几鍑烘尝褰㈢偤姝ｅ鸡娉���
銆�銆�浠ヤ笂鍏╃ó浣跨敤璧蜂締鍩烘湰鐩稿悓锛屽彧涓嶉亷Crystal鏄潬鍏�(n猫i)閮ㄧ殑鐭宠嫳鏅堕珨渚嗚捣鎸殑锛岀簿搴﹁純楂�锛屾姉骞叉摼瑕佸ソ锛岀敤鍦� 瑕佹眰杓冮珮鐨勫牬鍚�銆侰eramic鑸嘋rystal鐨勫叐鍊嬭叧鏄鍐嶅姞闆诲鎺ュ湴鐨�锛屾闆诲绋辩偤Load Capacitance(绨＄ūCL锛�銆傛湁涓�绋皣闆诲闆嗘垚鍦ㄨ鎸櫒閲岄潰鐨�锛岄�欐ǎ灏辨渻鏈変笁鍊嬭叧锛屼腑闁撲竴鍊嬭叧鏄帴鍦扮殑锛岄�欐檪灏辩ū鐐哄収(n猫i)缃浕瀹瑰紡璜ф尟鍣�锛屽姛鑳介倓鏄竴 妯�銆侰eramic鑸嘋rystal閮戒笉闇�瑕佸啀澶栧姞闆绘簮锛屽洜姝ら兘鏄劇婧愯鎸櫒銆傜敱浜庡畠鍊戣几鍑虹殑閮芥槸姝ｅ鸡娉紝鏄笉鑳界敤渚嗙洿鎺ラ﹨(q奴)鍕旾C鐨�锛屼竴鑸湪IC鍏�(n猫i)閮ㄩ倓鏈� 闄勫姞鐨勯浕璺�锛屽皣姝ｅ鸡娉㈠啀杞�(zhu菐n)鍖栫偤鏂规尝銆�
銆�銆�鐢变簬鐝�(xi脿n)鍦ㄧ煶鑻辨櫠楂旇鎸櫒锛圕rystal Resonator锛変娇鐢ㄦ瘮杓冨锛屽湪浜哄�戝彛闋笂锛岀煶鑻辨櫠楂旇鎸櫒-->鏅堕珨璜ф尟鍣�-->鏅舵尟-->鏅堕珨銆�
銆�銆�3.鏅堕珨鎸暕鍣�
銆�銆�鏅堕珨鎸暕鍣紙Oscillator锛�:閫欐槸涓�绋獢娆¤純楂樼殑鎸暕鍣紝涓�鑸偤鍥涘�嬭叧鐨勯噾灞皝瑁�锛屾槸瑕佸鎺ラ浕婧愶紙閫氬父鐐�5V/3.3V/2.5V锛�锛屽洜姝や篃鍙互绋辩偤鏈夋簮鎸暕鍣�銆傝几鍑烘尝褰㈢偤鏂规尝锛屽洜姝ゅ彲浠ョ洿鎺ョ敤渚嗛﹨(q奴)鍕旾C宸ヤ綔銆傞�欑ó鎸暕鍣ㄩ兘鏄敤鍦ㄧ簿搴﹁姹傞珮锛孖C鍏�(n猫i)閮ㄧ劇闄勫姞鎸暕闆昏矾鐨勫牬鍚�銆�
銆�銆�4.浜岃�呬箣闁撶殑鍗�(q奴)鍒�
銆�銆�璜ф尟鍣ㄥ拰閻樻尟(鎸暕鍣�)鐨勫崁(q奴)鍒ュ湪浜庯細璜ф尟鍣ㄦ槸鏈�绨″柈鐨勬矑鏈変换浣曡(b菙)鍎�?sh霉)鎭艰⒎骞�?锛岃�屾垜鍊戦�氬父瑾殑閻樻尟鏄敱涓�鍊嬭鎸櫒鍔犱笂ic绲勬垚涓�鍊嬪洖璺�屽鐝�(xi脿n)鍏惰嚜韬殑 鍔熻兘銆備互 VCXO鐐轰緥锛氬鎺ф櫠楂旀尟钑╁櫒锛圴CXO锛夋槸閫氶亷绱呭鍔犳帶鍒堕浕澹撲娇鎸暕闋荤巼鍙畩鎴栨槸鍙互瑾�(di脿o)鍒剁殑鐭宠嫳鏅堕珨鎸暕鍣ㄣ�俈CXO涓昏鐢辩煶鑻辫鎸櫒銆佽畩?n猫i)鑽活O绠″拰鎸� 钑╅浕璺祫鎴�锛屽叾宸ヤ綔鍘熺悊鏄�氶亷鎺у埗闆诲渚嗘敼璁婅畩?n猫i)鑽活O绠＄殑闆诲锛屽緸鑰屸�滅壗寮曗�濈煶鑻辫鎸櫒鐨勯牷鐜�锛屼互閬�(d谩)鍒伴牷鐜囪(di脿o)鍒剁殑鐩殑銆俈CXO澶у鐢ㄤ簬閹栫浉鎶�琛�(sh霉)銆侀牷鐜囪矤(f霉) 鍙嶉瑾�(di脿o)鍒剁殑鐩殑銆�
銆�銆�2.鏅堕珨璜ф尟鍣�
銆�銆�5.绺界祼(ji茅)
銆�銆�寰炰汉鍊戝彛闋ū璎備笂渚嗙湅锛屼簩鑰呯殑鍗�(q奴)鍒ワ細
銆�銆�鏅舵尟: 鐭宠嫳鏅堕珨(crystal), 閭勯渶瑕佸弽鍚戝櫒銆佽矤(f霉)杓夐浕瀹�(loading capacitor)褰㈡垚姝ｅ弽楗嬫墠鍙祫鎴愭尟钑╁櫒銆傚緸绲�(ji茅)妲�(g貌u)涓婄湅锛屾櫠鎸氨鏄湪鏅剁墖鐨勫叐鍋�(c猫)閸嶄笂闆绘サ鍚�锛岀洿鎺ュ紩鍑鸿�屽凡锛屼竴鑸湁2姊濆紩绶�锛屽爆浜庣劇婧愮殑銆�
銆�銆�閻樻尟: 鐭宠嫳鏅堕珨鎸暕鍣�(oscillator), 鏄妸浠ヤ笂涓夐儴鍒嗛泦鎴愯捣渚�銆傞悩鎸竴鑸洓鍙紩鑵�锛屾湁闆绘簮銆佸湴鍜屾檪閻樿几鍑哄紩鑵�锛屽彟涓�鍙紩鑵虫湁鐨勬槸NC锛屾湁鐨勬槸down锛岃捣鎺у埗浣滅敤銆傚収(n猫i)閮ㄦ湁鏅堕珨鍜屾尟钑╅浕璺�锛屽嚭寤� 鏅傞牷鐜囧凡鏍℃簴(zh菙n)銆傜壒榛烇細鎳�(y墨ng)鐢ㄦ柟渚�銆侀牷鐜囩┅(w臎n)瀹�銆侀浕纾佽蓟灏勫皯銆備絾鍍规牸姣旀櫠鎸泊浜涖�傚緸绲�(ji茅)妲�(g貌u)涓婄湅锛屾尟钑╁櫒鏄櫠鐗囩殑鍏╁伌(c猫)閸嶄笂闆绘サ鍚�锛岃垏涓�瀹氱殑鎺у埗闆昏矾鐩搁�ｆ帴锛岀劧鍚庡啀寮曞嚭锛屼竴鑸湁4姊濆紩绶�锛屽爆浜庢湁婧愬櫒浠�銆�
銆�銆�a.闄勯寗
銆�銆�鐝�(xi脿n)鍦ㄥ張鏈変竴绋寜鐓ф湁婧愯垏鐒℃簮渚嗗妰鍒嗕簩鑰呬箣闁撶殑鍗�(q奴)鍒�锛屽叾瀵﹂兘鏄竴妯�锛屽彧鏄棞(gu膩n)娉ㄧ殑鍗�(q奴)鍒ラ粸涓嶅悓鑰屽凡銆�
銆�銆�1) 鐒℃簮鏅堕珨----鐒℃簮鏅堕珨闇�瑕佺敤IC鐗囧収(n猫i)鐨勬尟钑╁櫒锛屽湪datasheet涓婁竴鑸湁寤鸿鐨勯�ｆ帴鏂规硶銆傜劇婧愭櫠楂旀矑鏈夐浕澹撶殑鍟忛锛屼俊铏熼浕骞虫槸鍙畩鐨勶紝涔熷氨鏄鏄� 鏍规摎(j霉)璧锋尟闆昏矾渚嗘焙瀹氱殑锛屽悓妯ｇ殑鏅堕珨鍙互閬╃敤浜庡绋浕澹擄紝鍙敤浜庡绋笉鍚屾檪閻樹俊铏熼浕澹撹姹傜殑鑺墖涓�锛岃�屼笖鍍规牸閫氬父涔熻純浣庛��
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銆�銆�閲囩敤浜嗗叏纭呰ō(sh猫)瑷�锛岄噰鐢ㄥ伐妤�(y猫)妯�(bi膩o)婧�(zh菙n)鐨�銆佷綆鎴愭湰濉戞ā灏佽鎶�琛�(sh霉)锛屽皝瑁濇垚鏈倓涓嶅埌鐭宠嫳鏅堕珨鐨勪竴鍗�銆傚皝瑁濆昂瀵稿寘鎷�7.0脳5.0mm, 5.0脳3.2mm, 3.2脳2.5mm锛�2.5脳2.0mm锛岄倓鍙仛鍒�2.0脳1.6mm鐢氳嚦鏇村皬銆傜洰鍓�锛孧EMS閻樻尟鐨勫児鏍煎凡缍�(j墨ng)鑳借垏鏅舵尟鍖规暤銆傞牷鐜囧彲绶ㄧ▼锛岃寖鍦�1~150MHz銆傚宸ヤ綔闆诲锛�1.8V-3.6V浠绘剰闆诲鍧囧彲姝ｅ父宸ヤ綔銆傝几鍑虹┅(w臎n)瀹氱殑娉㈠舰锛岀劇闇�澧炲姞婵炬尝闆昏矾銆�
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