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濞撳〒宸ユキ(y猫)
鎮ㄧ従(xi脿n)鍦ㄧ殑浣嶇疆锛� 涓湅鍌冲嫊缍�(w菐ng) > 鎶€琛�(sh霉)闋婚亾 > 鎶€琛�(sh霉)鐧剧 > 鍦ㄩ浕鍕曟鎺у埗娓噺涓渶瑕佺殑鐩搁棞(gu膩n)鍌虫劅鍣ㄥ拰鍙冩暩(sh霉)浠嬬垂

鍦ㄩ浕鍕曟鎺у埗娓噺涓渶瑕佺殑鐩搁棞(gu膩n)鍌虫劅鍣ㄥ拰鍙冩暩(sh霉)浠嬬垂

鏅傞枔锛�2024-08-06 17:35:23渚嗘簮锛�21ic闆诲瓙缍�(w菐ng)

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銆€銆€2. 鐔卞櫔闊�: 閫欑ó鐢遍浕瀛愮殑闅ㄦ閬嬪嫊寮曡捣鐨勫浐鏈夊櫔鑱插瓨鍦ㄤ簬鎵€鏈夌殑闆诲瓙鍏冧欢涓�,鏈冨奖闊緼DC璁€鏁�(sh霉)鐨勬簴纰烘€�銆�

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銆€銆€4. 闆绘簮鍣煶: 闆诲娉㈠嫊鍜屼締鑷浕婧愮殑鍣煶鏈冨奖闊緼DC鐨勮畝鏁�(sh霉)銆備繚鎸佺┅(w臎n)瀹氱殑闆绘簮渚涙噳(y墨ng)鏄嚦闂�(gu膩n)閲嶈鐨�,灏ゅ叾鏄暥(d膩ng)棣仈鍜屾帶鍒堕浕瀛愯ō(sh猫)鍌欏叡浜浕婧愭檪銆�

銆€銆€5. 鍙冭€冮浕澹撳櫔闊�: ADC浣跨敤鍙冭€冮浕澹撲締纰哄畾妯℃摤淇¤櫉鐨勬暩(sh霉)瀛楄〃绀烘柟寮�銆傚鏋滈€欏€嬪熀婧栭浕澹撴槸鍣伈,瀹冩渻褰遍熆淇″櫔姣�銆�

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銆€銆€7. 椤姈: 涓嶆簴纰虹殑鏅傞枔,鐗瑰垾鏄湪ADC鐨勯噰妯f檪閻�,鍙互寮曞叆閷銆傚湪闆诲嫊姗熸帶鍒舵噳(y墨ng)鐢ㄧ▼搴忎腑,閫氬父鏈冪櫦(f膩)鐢熶互鏅傞枔鐐哄熀绀�(ch菙)鐨勪簨浠�,濡傚娉淇¤櫉,鍥犳,鏈€灏忓寲闇囧嫊璁婂緱鑷抽棞(gu膩n)閲嶈銆備緥濡�,鐣�(d膩ng)浣嶇疆妯f湰涔嬮枔鐨勬檪闁撻枔闅斾笉涓€鑷存檪(鐢变簬椤姈),鍗€(q奴)鍒嗗彲浠ョ敘(ch菐n)鐢熻烦韬嶆垨瑷堢畻閫熷害鐨勫嘲鍊笺€傞€欎簺璺宠簫鍙兘琚帶鍒跺櫒瑾よВ鐐洪€熷害鐨勫揩閫熻畩鍖�,灏�(d菐o)鑷村畠閲囧彇涓嶅繀瑕佹垨閬庡害鐨勭尘姝h鍕�

銆€銆€8. 澶栭儴骞查爯(y霉): 闄や簡闆诲嫊姗熸湰韬殑EMI涔嬪,鍏朵粬闈犺繎鐨勮ō(sh猫)鍌欏拰绯荤当(t菕ng)涔熸渻寮曞叆褰遍熆ADC杓稿叆鐨勫共鎿�銆�

銆€銆€9. 闆昏矾鍣伈锛氬叿鏈堿DC闆昏矾鐨凱CB鐨勮ō(sh猫)瑷堝拰甯冨眬鍙兘鏈冨紩鍏ュ櫔鑱�銆傞仼鐣�(d膩ng)?sh霉)鑴慜(sh猫)瑷堟帾鏂�锛屽寘鎷В鑰︺€佸睆钄藉拰鎺ュ湴锛屾湁鍔╀簬鐩¢噺娓涘皯閫欑ó鍣煶銆�

銆€銆€10.涓�?d膩ng)_锛氬湪浣跨敤澶氬€婣DC淇¢亾鐨勭郴绲�(t菕ng)涓�锛屼竴鍊嬮€氶亾鍙互寰炲彟涓€鍊嬮€氶亾鎺ユ敹骞叉摼銆�

銆€銆€11.鍙︿竴鍊嬮噸瑕佺殑搴﹂噺妯�(bi膩o)婧栨槸鏈夋晥姣旂壒鏁�(sh霉)(ENOB)銆傜暥(d膩ng)杓稿叆鏄竴鍊嬫寮︽尝鏅傦紝ENOB娓噺鍒嗚鲸鐜�銆傚畠鏄敱SINAD瑷堢畻鍑虹殑锛岃▓绠楀叕寮忓涓嬶細ENOB = (SINAD dB 鈥� 1.76) / 6.02 (绲�(ji茅)鏋滀互浣嶈〃绀�銆�)

銆€銆€(鍙栨ǎ鐜�) 灏嶄簬ADC渚嗚,瀹冩弿杩扮殑鏄疉DC鐨勬渶澶ч噰妯i€熺巼,鎴栬€呭畠鑳藉?q奴)鈷涱棛M杓稿叆淇¤櫉杞�(zhu菐n)鎻涚偤鏁�(sh霉)瀛楄几鍑虹殑閫熷害銆傚畠閫氬父鐢�"姣忕鍏枻妯e搧"琛ㄧず銆�

銆€銆€瑷卞姗熷嫊鎺у埗鍠墖姗熼厤鍌欎簡12浣�,14浣�,鐢氳嚦16浣嶇殑鑷嫊鏁�(sh霉)鎿�(j霉)铏曠悊鍣�,浠ユ彁楂橀浕娴佸拰闆诲娓噺鐨勫垎杈ㄧ巼銆傚彈姝¤繋鐨勫柈鐗囨鍒堕€犲晢,濡係TM32绯诲垪銆佸痉鍏嬭柀鏂剙鍣�(C2000绯诲垪)銆丯XP(鍕曞姏瀛�(xu茅)瀹�)鍜屽井鑺墖(DSPIC,PIC32),灏囪兘澶犲悓鏅傚皪澶氬€嬮€氶亾閫茶閲囨ǎ鐨勯珮閲囨ǎ鐜囩殑ADCS闆嗘垚鍦ㄤ竴璧�銆傛澶�,閭勬湁浠ュ樊閫熷櫒鐐虹壒寰佺殑鍠墖姗�,鐢ㄤ簬绮剧⒑鐨勯浕娴佸拰闆诲娓噺,娑堥櫎鍏辨ā鍣伈銆傚柈鐗囨ADCS閫氬父閫氶亷閲囬泦澶氬€嬮€g簩(x霉)妯f湰渚嗗鐝�(xi脿n)閬庨噰妯�,鐒跺悗瑷堢畻瀹冨€戠殑骞冲潎鍊�銆�

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銆€銆€鎺у埗绯荤当(t菕ng)涓殑鏅傞枔鍜屽悓姝ユ脯閲�

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銆€銆€鏈変簺閫氫俊鍗�(xi茅)璀板厑瑷辫法瑷�(sh猫)鍌欑殑鏅傞悩鍚屾銆傞€欑⒑淇濅簡涓绘鍜岄浕姗熸帶鍒跺櫒鏄熀浜庣浉鍚岀殑鏅傞枔鍙冭€冮亱琛岀殑銆備竴鍊嬩緥瀛愭槸鍦ㄥ熀浜庨啔鐨勭郴绲�(t菕ng)涓娇鐢ㄧ殑绮剧⒑鏅傞枔鍗�(xi茅)璀�(PTP)銆�

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銆€銆€鏈変簺绯荤当(t菕ng)浣跨敤灏堢敤鐨勮几鍏�/杓稿嚭淇¤櫉閫茶鍚屾銆傜暥(d膩ng)澶栭儴涓绘绯荤当(t菕ng)鎻愪緵灏堥杸鐨勫悓姝ヨ几鍑轰俊铏熸檪,浣滅偤灏嶉浕姗熸帶鍒跺櫒鐨勮几鍏�,鐣�(d膩ng)鍕�(w霉)涔嬫€ユ槸闆绘鎺у埗鍣ㄧ殑鍏�(n猫i)閮ㄨ檿鐞嗗懆鏈熷拰鎵€鏈夌殑鍏�(n猫i)閮ㄩ噰妯f檪閻樿垏姝ゅ悓姝�銆�

銆€銆€鎵€鏈夌殑娓噺娲诲嫊,涓昏鐨勮檿鐞嗕腑鏂峰拰澹撴按姗熻几鍑烘噳(y墨ng)瑭茶垏閫欏€嬬郴绲�(t菕ng)鍛ㄦ湡鍗�(xi茅)瑾�(di脿o).鍦ㄩ€欑ó鎯呮硜涓�,閹栫浉寰挵(hu谩n)(PLL)鑷抽棞(gu膩n)閲嶈,鍥犵偤瀹冨€戠⒑淇濊几鍑哄拰杓稿叆淇¤櫉闅庢鐨勫悓姝ャ€傞洊鐒惰ū澶氬井鎺у埗鍣ㄥ付鏈夊収(n猫i)缃殑PLL,浣嗗皪浜庡熀浜巉pga鐨勭郴绲�(t菕ng),浜哄€戝彲鑳介渶瑕佸皣PLL浣滅偤IP銆�


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