鏅傞枔锛�2025/4/28 19:42:43
闁辫畝锛�39
LM5642 鏄竴娆鹃洐閫氶亾銆佷綆鍣伈銆侀珮绮惧害鐨勭窔鎬х┅(w臎n)澹撳櫒锛屽皥鐐洪渶瑕佽秴浣庤几鍑哄櫔鑱插拰楂橀浕婧愭姂鍒舵瘮(PSRR)鐨勬噳鐢ㄨ�岃ō(sh猫)瑷�銆傚畠鑳藉鎻愪緵鍏╄矾鐛ㄧ珛鍙(di脿o)鐨勮几鍑洪浕澹�锛岄潪甯搁仼鍚堢偤灏嶅櫔鑱叉晱鎰熺殑妯℃摤闆昏矾渚涢浕锛屼緥濡傚皠闋�(RF)妯″銆佹暩(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒銆侀煶闋昏ō(sh猫)鍌欑瓑銆侺M5642 閲囩敤鍏堥�茬殑宸ヨ棟鍒堕��锛屽叿鏈夋サ浣庣殑闈滄厠(t脿i)闆绘祦鍜屽揩閫熺灛鎱�(t脿i)闊挎噳鐗规�с�傝┎鍣ㄤ欢鏀寔澶氱ó灏佽褰㈠紡锛屽叾涓� LM5642MTCX/NOPB 鏄竴绋皬鍨嬪寲鐨勫皝瑁濈増鏈紝閬╁悎绌洪枔鍙楅檺鐨勮ō(sh猫)瑷�銆�
杓稿叆闆诲鑼冨湇锛�1.8V 鑷� 5.5V
銆�銆�杓稿嚭闆诲鑼冨湇锛�0.8V 鑷� 3.3V
銆�銆�杓稿嚭闆绘祦锛氭瘡閫氶亾鏈�楂� 200mA
銆�銆�闈滄厠(t脿i)闆绘祦锛氬吀鍨嬪�� 75uA
銆�銆�璨犺級瑾�(di脿o)鏁寸巼锛毬�0.5%
銆�銆�绶氳矾瑾�(di脿o)鏁寸巼锛毬�0.5%
銆�銆�杓稿嚭鍣伈闆诲(10Hz 鑷� 100kHz)锛氬吀鍨嬪�� 15uVrms
銆�銆�闆绘簮鎶戝埗姣�(PSRR)(1kHz)锛氬吀鍨嬪�� -74dB
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +125掳C
銆�銆�灏佽锛歁LPQ 16 寮曡叧
LM5642 鎻愪緵鍏╁�嬬崹绔嬬殑浣庡宸�(LDO)瑾�(di脿o)绡�(ji茅)鍣�锛屽叿鍌欎互涓嬬壒榛烇細
銆�銆�1. 瓒呬綆鍣伈鎬ц兘浣垮叾闈炲父閬╁悎鐐洪珮鎬ц兘妯℃摤鍜屽皠闋婚浕璺緵闆�銆�
銆�銆�2. 楂� PSRR 鐗规�у彲浠ユ湁鏁堟姂鍒朵締鑷浕婧愮殑骞叉摼淇¤櫉銆�
銆�銆�3. 姣忓�嬮�氶亾鍧囧彲鍠崹瑷�(sh猫)缃几鍑洪浕澹�锛岄潏娲绘�у挤銆�
銆�銆�4. 蹇�熺灛鎱�(t脿i)闊挎噳纰轰繚鍦ㄨ矤杓夎畩鍖栨檪杓稿嚭闆诲鐨勭┅(w臎n)瀹氭��銆�
銆�銆�5. 鍏�(n猫i)缃亷娴佷繚璀�銆佺煭璺繚璀峰拰鐔遍棞(gu膩n)鏂峰姛鑳斤紝鎻愰珮绯荤当(t菕ng)鍙潬鎬�銆�
銆�銆�6. 灏忓瀷鍖栧皝瑁� LM5642MTCX/NOPB 绡�(ji茅)鐪� PCB 绌洪枔锛屼究浜庣穵婀婂瀷瑷�(sh猫)瑷�銆�
銆�銆�7. 瀵几鍏ラ浕澹撹寖鍦嶅拰杓冧綆鐨勯潨鎱�(t脿i)闆绘祦鏈夊姪浜庡欢闀烽浕姹犱緵闆昏ō(sh猫)鍌欑殑绾�(x霉)鑸檪闁�銆�
LM5642 寤ｆ硾鎳夌敤浜庡皪闆绘簮璩�(zh矛)閲忚姹傝純楂樼殑鍫存櫙锛屽寘鎷細
銆�銆�1. 娑堣不椤為浕瀛愮敘(ch菐n)鍝佷腑鐨勫皠闋诲墠绔ā濉婁緵闆汇��
銆�銆�2. 鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛圓DC/DAC锛夊弮鑰冮浕澹撴簮銆�
銆�銆�3. 闊抽牷鏀惧ぇ鍣ㄥ強闊抽牷铏曠悊鑺墖鐨勯浕婧愪緵鎳�銆�
銆�銆�4. 渚挎敎寮忛啱(y墨)鐧傝ō(sh猫)鍌欎腑鐨勫偝鎰熷櫒鎺ュ彛渚涢浕銆�
銆�銆�5. 宸ユキ(y猫)鑷嫊鍖栫郴绲�(t菕ng)涓皪鍣伈鏁忔劅鐨勬ā鎿俊铏熼張璺��
銆�銆�6. 閫氫俊鍩虹(ch菙)瑷�(sh猫)鏂戒腑鐨勪綆鍣伈闆绘簮绠＄悊鏂规銆�
銆�銆�7. 闆绘睜渚涢浕瑷�(sh猫)鍌欏鏅鸿兘鎵嬫鍜屽钩鏉块浕鑵︿腑鐨勯棞(gu膩n)閸甸浕璺緵闆汇��
LM5640, LP5907, AP2112K
