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AFE7989 鏄竴娆鹃珮鎬ц兘鐨勬ā鎿墠绔� (Analog Front End, AFE) 鑺墖锛屽皥鐐洪珮绮惧害鏁�(sh霉)鎿�(j霉)閲囬泦鍜屼俊铏熻檿鐞嗚ō(sh猫)瑷�銆傝┎鑺墖闆嗘垚浜嗗鍊嬪姛鑳芥ā濉�锛屽寘鎷彲绶ㄧ▼澧炵泭鏀惧ぇ鍣�銆佹ā鏁�(sh霉)杞�(zhu菐n)鎻涘櫒 (ADC)銆佹暩(sh霉)瀛楁烤娉㈠櫒浠ュ強鎺ュ彛闆昏矾锛岃兘澶�?q奴)宕縁(xi脿n)灏嶅京(f霉)闆滄ā鎿俊铏熺殑绮剧⒑铏曠悊鍜屾暩(sh霉)瀛楀寲杞�(zhu菐n)鎻涖€�
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鍙冩暩(sh霉)

闆绘簮闆诲锛�2.7V 鑷� 5.25V
銆€銆€宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +125掳C
銆€銆€鍒嗚鲸鐜囷細24 浣�
銆€銆€閲囨ǎ閫熺巼锛氶珮閬�(d谩) 250 kSPS
銆€銆€淇″櫔姣� (SNR)锛氬ぇ浜� 110 dB
銆€銆€绺借娉㈠け鐪� (THD)锛氬皬浜� -120 dB
銆€銆€杓稿叆椤炲瀷锛氬樊鍒嗚几鍏�
銆€銆€灏佽褰㈠紡锛歍QFP-64

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AFE7989 鐨勪富瑕佺壒鎬у寘鎷細
銆€銆€1. 楂樺垎杈ㄧ巼鑸囦綆鍣伈鎬ц兘锛岄仼鍚堢簿瀵嗕俊铏熼噰闆�銆�
銆€銆€2. 鍏�(n猫i)缃� PGA锛堝彲绶ㄧ▼澧炵泭鏀惧ぇ鍣級锛屾敮鎸佸绋鐩婅ō(sh猫)缃互閬╂噳(y墨ng)涓嶅悓杓稿叆淇¤櫉骞呭害銆�
銆€銆€3. 鏀寔闈堟椿鐨勬暩(sh霉)瀛楁烤娉㈠櫒閰嶇疆锛岀敤鎴跺彲浠ユ牴鎿�(j霉)鍏烽珨鎳�(y墨ng)鐢ㄩ渶姹傞伕鎿囨烤娉㈠櫒甯跺鍜屾埅姝㈤牷鐜�銆�
銆€銆€4. 鎻愪緵 SPI 鎺ュ彛鐢ㄤ簬鑸囧井鎺у埗鍣ㄦ垨 FPGA 閫�(j矛n)琛岄€氫俊銆�
銆€銆€5. 鐗囧収(n猫i)闆嗘垚浜嗘尟钑╁櫒鍜屾檪閻樼鐞嗗柈鍏�锛屾笡灏戜簡灏嶅閮ㄥ厓浠剁殑渚濊炒銆�
銆€銆€6. 鏀寔澶氶€氶亾鍚屾閲囨ǎ锛屾柟渚垮湪澶氳矾淇¤櫉鐠�(hu谩n)澧冧腑浣跨敤銆�
銆€銆€7. 鍏峰倷浣庡姛鑰楁ā寮�锛屾湁鍔╀簬寤堕暦闆绘睜渚涢浕绯荤当(t菕ng)鐨勯亱(y霉n)琛屾檪闁撱€�

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AFE7989 寤ｆ硾鎳�(y墨ng)鐢ㄤ簬浠ヤ笅闋�(l菒ng)鍩燂細
銆€銆€1. 宸ユキ(y猫)鎺у埗涓殑鍌虫劅鍣ㄤ俊铏熻(di脿o)鐞嗗拰鏁�(sh霉)鎿�(j霉)閲囬泦銆�
銆€銆€2. 閱�(y墨)鐧傝ō(sh猫)鍌欏蹇冮浕鍦栧剙 (ECG) 鍜岃叇闆诲湒鍎€ (EEG) 涓殑鐢熺墿闆讳俊铏熼噰闆�銆�
銆€銆€3. 娓│娓噺鍎€鍣ㄥ鏁�(sh霉)瀛楄惉鐢ㄨ〃鍜岀ず娉㈠櫒銆�
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銆€銆€5. 鏅鸿兘鍎€琛ㄥ鏅鸿兘闆昏〃銆佹按琛ㄥ拰鐕�?x矛)鐛楃姊板摢鑺板潙瀣冧繆?br>銆€銆€6. 鏁�(sh霉)鎿�(j霉)瑷橀寗鍎€鍜屽叾浠栭渶瑕侀珮绮惧害淇¤櫉铏曠悊鐨勬噳(y墨ng)鐢ㄥ牬鏅€�