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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

HX711
闁辫畝锛�8977鏅�(sh铆)闁擄細2017-12-09 09:47:11

HX711鏄竴娆惧皥鐐洪珮绮惧害闆诲瓙绉よ�岃ō(sh猫)瑷�(j矛)鐨�24浣岮/D杞�(zhu菐n)鎻涘櫒鑺墖銆傝垏鍚岄鍨嬪叾瀹冭姱鐗囩浉姣�锛岃┎鑺墖闆嗘垚浜嗗寘鎷┅(w臎n)澹�闆绘簮銆佺墖鍏�(n猫i)鏅�(sh铆)閻樻尟钑╁櫒绛夊叾瀹冨悓椤炲瀷鑺墖鎵�闇�瑕佺殑澶栧湇闆昏矾锛屽叿鏈夐泦鎴愬害楂�銆侀熆鎳�(y墨ng)閫熷害蹇�銆佹姉骞叉摼鎬у挤(qi谩ng)绛夊劒(y艒u)榛�(di菐n)銆�

HX711

浠嬬垂

銆�銆�HX711闄嶄綆浜嗛浕瀛愮Г鐨勬暣姗�(j墨)鎴愭湰锛屾彁楂樹簡鏁存(j墨)鐨勬�ц兘鍜屽彲闈犳�с�傝┎鑺墖鑸囧悗绔疢CU鑺墖鐨勬帴鍙ｅ拰绶ㄧ▼闈炲父绨″柈锛屾墍鏈夋帶鍒朵俊铏熺敱绠¤叧椹�(q奴)鍕曪紝鐒￠渶灏嶈姱鐗囧収(n猫i)閮ㄧ殑瀵勫瓨鍣ㄧ法绋�銆傝几鍏ラ伕鎿囬枊闂�(gu膩n)鍙换鎰忛伕鍙栭�氶亾A鎴栭�氶亾B锛岃垏鍏跺収(n猫i)閮ㄧ殑浣庡櫔鑱插彲绶ㄧ▼鏀惧ぇ鍣ㄧ浉閫�銆傞�氶亾A鐨勫彲绶ㄧ▼澧炵泭鐐�128鎴�64锛屽皪鎳�(y墨ng)鐨勬豢椤嶅害宸垎杓稿叆淇¤櫉骞呭�煎垎鍒ョ偤卤20mV鎴柭�40mV銆傞�氶亾B鍓囩偤鍥哄畾鐨�64澧炵泭锛岀敤浜庣郴绲�(t菕ng)鍙冩暩(sh霉)妾㈡脯銆傝姱鐗囧収(n猫i)鎻愪緵鐨勭┅(w臎n)澹撻浕婧愬彲浠ョ洿鎺ュ悜澶栭儴鍌虫劅鍣ㄥ拰鑺墖鍏�(n猫i)鐨凙/D杞�(zhu菐n)鎻涘櫒鎻愪緵闆绘簮锛岀郴绲�(t菕ng)鏉夸笂鐒￠渶鍙﹀鐨勬ā鎿浕婧�銆傝姱鐗囧収(n猫i)鐨勬檪(sh铆)閻樻尟钑╁櫒涓嶉渶瑕佷换浣曞鎺ュ櫒浠�銆備笂闆昏嚜鍕曞京(f霉)浣嶅姛鑳界啊鍖栦簡闁嬫(j墨)鐨勫垵濮嬪寲閬庣▼銆�

鑺墖鐗归粸(di菐n)

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銆�銆�路鐗囧収(n猫i)绌�(w臎n)澹撻浕璺彲鐩存帴鍚戝閮ㄥ偝鎰熷櫒鍜岃姱鐗囧収(n猫i)A/D杞�(zhu菐n)鎻涘櫒鎻愪緵闆绘簮
銆�銆�路鐗囧収(n猫i)鏅�(sh铆)閻樻尟钑╁櫒鐒￠渶浠讳綍澶栨帴鍣ㄤ欢锛屽繀瑕佹檪(sh铆)涔熷彲浣跨敤澶栨帴鏅舵尟鎴栨檪(sh铆)閻�
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銆�銆�路绨″柈鐨勬暩(sh霉)瀛楁帶鍒跺拰涓插彛閫氳▕锛氭墍鏈夋帶鍒剁敱绠¤叧杓稿叆锛岃姱鐗囧収(n猫i)瀵勫瓨鍣ㄧ劇闇�绶ㄧ▼
銆�銆�路鍙伕鎿�10Hz鎴�80Hz鐨勮几鍑烘暩(sh霉)鎿�(j霉)閫熺巼
銆�銆�路鍚屾鎶戝埗50Hz鍜�60Hz鐨勯浕婧愬共鎿�
銆�銆�路鑰楅浕閲忥紙鍚┅(w臎n)澹撻浕婧愰浕璺級锛氬吀鍨嬪伐浣滈浕娴侊細<1.7mA,鏂烽浕闆绘祦锛�<1渭A
銆�銆�路宸ヤ綔闆诲鑼冨湇锛�2.6~5.5V
銆�銆�路宸ヤ綔婧害鑼冨湇锛�-20~+85鈩�
銆�銆�路16绠¤叧鐨凷OP-16灏佽

绠¤叧鍔熻兘

銆�銆�1銆乂SUP 闆绘簮 绌�(w臎n)澹撻浕璺緵闆婚浕婧�: 2.6 ~ 5.5V锛堜笉鐢ㄧ┅(w臎n)澹撻浕璺檪(sh铆)鎳�(y墨ng)鎺VDD锛�
銆�銆�2銆丅ASE 妯℃摤杓稿嚭 绌�(w臎n)澹撻浕璺帶鍒惰几鍑猴紙涓嶇敤绌�(w臎n)澹撻浕璺檪(sh铆)鐐虹劇閫ｆ帴锛�
銆�銆�3銆丄VDD 闆绘簮 妯℃摤闆绘簮: 2.6 ~ 5.5V
銆�銆�4銆乂FB 妯℃摤杓稿叆 绌�(w臎n)澹撻浕璺帶鍒惰几鍏ワ紙涓嶇敤绌�(w臎n)澹撻浕璺檪(sh铆)鎳�(y墨ng)鎺ュ湴锛�
銆�銆�5銆丄GND 鍦� 妯℃摤鍦�
銆�銆�6銆乂BG 妯℃摤杓稿嚭 鍙冭�冮浕婧愯几鍑�
銆�銆�7銆両NA- 妯℃摤杓稿叆 閫氶亾 A 璨�(f霉)杓稿叆绔�
銆�銆�8銆両NA+ 妯℃摤杓稿叆 閫氶亾 A 姝ｈ几鍏ョ
銆�銆�9銆両NB- 妯℃摤杓稿叆 閫氶亾 B 璨�(f霉)杓稿叆绔�
銆�銆�10銆両NB+ 妯℃摤杓稿叆 閫氶亾 B 姝ｈ几鍏ョ
銆�銆�11銆丳D_SCK 鏁�(sh霉)瀛楄几鍏� 鏂烽浕鎺у埗锛堥珮闆诲钩鏈夋晥锛夊拰涓插彛鏅�(sh铆)閻樿几鍏�
銆�銆�12銆丏OUT 鏁�(sh霉)瀛楄几鍑� 涓插彛鏁�(sh霉)鎿�(j霉)杓稿嚭
銆�銆�13銆乆O 鏁�(sh霉)瀛楄几鍏ヨ几鍑� 鏅舵尟杓稿叆锛堜笉鐢ㄦ櫠鎸檪(sh铆)鐐虹劇閫ｆ帴锛�
銆�銆�14銆乆I 鏁�(sh霉)瀛楄几鍏� 澶栭儴鏅�(sh铆)閻樻垨鏅舵尟杓稿叆锛�0: 浣跨敤鐗囧収(n猫i)鎸暕鍣�
銆�銆�15銆丷ATE 鏁�(sh霉)瀛楄几鍏� 杓稿嚭鏁�(sh霉)鎿�(j霉)閫熺巼鎺у埗锛�0: 10Hz; 1: 80Hz
銆�銆�16銆丏VDD 闆绘簮 鏁�(sh霉)瀛楅浕婧�: 2.6 ~ 5.5V

涓昏鍙冩暩(sh霉)

銆�銆�婊块搴﹀樊鍒嗚几鍏ヨ寖鍦峍(inp)-V(inn)卤0.5(AVDD/GAIN)V
銆�銆�杓稿叆鍏辨ā闆诲鑼冨湇AGND+0.6AVDD-0.6V
銆�銆�浣跨敤鐗囧収(n猫i)鎸暕鍣�锛孯ATE=010
銆�銆�浣跨敤鐗囧収(n猫i)鎸暕鍣�锛孯ATE=DVDD80
銆�銆�澶栭儴鏅�(sh铆)閻樻垨鏅舵尟锛孯ATE=0fclk/1,105,920
銆�銆�杓稿嚭鏁�(sh霉)鎿�(j霉)閫熺巼
銆�銆�澶栭儴鏅�(sh铆)閻樻垨鏅舵尟锛孯ATE=DVDDfclk/138,240Hz
銆�銆�杓稿嚭鏁�(sh霉)鎿�(j霉)绶ㄧ⒓浜岄��(j矛n)鍒惰(b菙)纰�8000007FFFFF(HEX)RATE=0400
銆�銆�杓稿嚭鍙冭�冮浕澹擄紙VBG锛�1.25V
銆�銆�澶栭儴鏅�(sh铆)閻樻垨鏅舵尟闋荤巼111.059230MHz
銆�銆�妯℃摤闆绘簮闆绘祦锛堝惈绌�(w臎n)澹撻浕璺級1600渭A鏂烽浕0.3渭A

缍韩闆诲瓙閫�锛岄浕瀛愮煡璀橈紝涓�鏌ョ櫨閫�锛�

宸叉敹閷勮姊�168535鍊�(g猫)