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闁辫畝锛�28
DAC3484 鏄竴娆鹃珮鎬ц兘銆佷綆鍔熻�楃殑 16 浣嶅洓閫氶亾鏁�(sh霉)妯¤綁鎻涘櫒 (DAC)锛岀敱 Texas Instruments锛堝痉宸炲剙鍣級瑷▓鍒堕��銆傝┎鍣ㄤ欢闆嗘垚浜嗗鍊嬪姛鑳芥ā濉�锛岄仼鍚堥渶瑕侀珮绮惧害鍜屽璺俊铏熻檿鐞嗙殑鎳夌敤鍫存櫙銆傚叾涓昏鐗归粸鏄叿鏈夊嚭鑹茬殑绶氭�у害銆佷綆鍣伈浠ュ強闈堟椿鐨勯厤缃伕闋�銆侱AC3484 閲囩敤鍏堥�茬殑 CMOS 宸ヨ棟鍒堕��锛屾敮鎸侀珮閬� 125 MSPS 鐨勬洿鏂伴�熺巼锛屽苟涓斿彲浠ラ�氶亷涓茶鎺ュ彛杓曟澗鑸囧井鎺у埗鍣ㄦ垨 FPGA 閰嶅悎浣跨敤銆�
銆�銆�DAC3484 鍏�(n猫i)閮ㄥ寘鍚洓鍊嬬崹绔嬬殑 DAC 鏍稿績锛屾瘡鍊嬫牳蹇冮兘鍙互鍠崹绶ㄧ▼鍜屾帶鍒躲�傛澶�锛屽畠閭勬彁渚涗簡澶氱ó鍙冭�冮浕澹撻伕闋呬互鍙婂彲閬哥殑澧炵泭瑷疆锛屽緸鑰屾豢瓒充笉鍚屾噳鐢ㄧ殑闇�姹�銆侱AC3484 寤ｆ硾鐢ㄤ簬閫氫俊绯荤当(t菕ng)銆佸伐妤�(y猫)鑷嫊鍖�銆侀啱(y墨)鐧傝ō鍌欎互鍙婃脯瑭︽脯閲忕瓑闋樺煙銆�
鍒嗚鲸鐜囷細16 浣�
銆�銆�杓稿嚭閫氶亾鏁�(sh霉)锛�
銆�銆�鏈�澶ф洿鏂伴�熺巼锛�125 MSPS
銆�銆�渚涢浕闆诲鑼冨湇锛�1.8 V 鑷� 5.5 V
銆�銆�鏁�(sh霉)瀛楁帴鍙ｉ鍨嬶細SPI 鍏煎
銆�銆�鍙冭�冮浕澹撹寖鍦嶏細0.5 V 鑷� 4.096 V
銆�銆�宸垎闈炵窔鎬� (DNL)锛毬�1 LSB锛堝吀鍨嬪�硷級
銆�銆�绌嶅垎闈炵窔鎬� (INL)锛毬�1 LSB锛堝吀鍨嬪�硷級
銆�銆�淇″櫔姣� (SNR)锛�90 dB锛堝吀鍨嬪�硷級
銆�銆�绺借娉㈠け鐪� (THD)锛�-90 dB锛堝吀鍨嬪�硷級
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +85掳C
銆�銆�灏佽褰㈠紡锛歍QFP-64
DAC3484 鎻愪緵浜嗛珮搴﹂泦鎴愮殑瑙ｆ焙鏂规锛岄仼鐢ㄤ簬澶氶�氶亾淇¤櫉鐢熸垚浠诲嫏銆�
銆�銆�1. 楂樼簿搴︼細16 浣嶅垎杈ㄧ巼纰轰繚浜嗘サ楂樼殑淇¤櫉閭勫師绮惧害锛岄潪甯搁仼鍚堣姹傝嫑鍒荤殑鎳夌敤鐠�(hu谩n)澧�銆�
銆�銆�2. 蹇�熸洿鏂拌兘鍔涳細鑳藉浠ラ珮閬� 125 MSPS 鐨勯�熷害閬嬭锛屾豢瓒抽珮閫熶俊铏熻檿鐞嗛渶姹�銆�
銆�銆�3. 澶氱ó鍙冭�冮浕澹撻伕闋咃細鍏佽ū鐢ㄦ埗鏍规摎(j霉)鍏烽珨鎳夌敤閬告搰鍚堥仼鐨勫弮鑰冮浕澹撴簮锛屾彁渚涙洿澶х殑闈堟椿鎬с��
銆�銆�4. 闈堟椿鐨勬暩(sh霉)瀛楁帴鍙ｏ細鏀寔妯欐簴 SPI 鍗�(xi茅)璀�锛屼究浜庤垏鍚勭ó涓绘帶鍠厓閫茶閫氫俊銆�
銆�銆�5. 瓒呬綆鍔熻�楁ā寮忥細鍦ㄤ笉闇�瑕佸叏閫熼亱琛屾檪锛屽彲浠ュ垏鎻涘埌浣庡姛鑰楃媭鎱�(t脿i)浠ョ瘈(ji茅)鐪佽兘婧�銆�
銆�銆�6. 瀵緵闆婚浕澹撹寖鍦嶏細鍏煎 1.8V 鑷� 5.5V 鐨勯浕婧愯几鍏�锛岄仼鎳夊绋浕璺ō瑷堥渶姹傘��
銆�銆�7. 鍑鸿壊鐨勫嫊鎱�(t脿i)鎬ц兘锛氬叿鍌欏劒(y艒u)鐣扮殑 SNR 鍜� THD 鎸囨锛屼繚璀夐珮璩噺鐨勪俊铏熻几鍑恒��
銆�銆�8. 灏忓瀷灏佽锛氶噰鐢� TQFP-64 灏佽锛屾棦绡�(ji茅)鐪佺┖闁撳張鏂逛究甯冨眬甯冪窔銆�
DAC3484 鍥犲叾鍗撹秺鐨勬�ц兘鍜屽鍔熻兘鎬�锛屽湪瑷卞闋樺煙涓緱鍒颁簡寤ｆ硾鎳夌敤銆�
銆�銆�1. 閫氫俊绯荤当(t菕ng)锛氱敤浜庣劇绶氬熀绔�銆佽粺浠跺畾缇╃劇绶氶浕 (SDR) 绛夎ō鍌欎腑鐨勪俊铏熺敓鎴�銆�
銆�銆�2. 宸ユキ(y猫)鑷嫊鍖栵細瀵︾従(xi脿n)绮剧⒑鐨勬帶鍒朵俊铏熻几鍑�锛屼緥濡傞亷绋嬫帶鍒跺剙琛�銆佷己鏈嶉﹨鍕曞櫒绛�銆�
銆�銆�3. 閱�(y墨)鐧傝ō鍌欙細濡傝秴鑱叉垚鍍忋�佹偅鑰呯洠(ji膩n)璀峰剙涓殑鏁�(sh霉)鎿�(j霉)閲囬泦鑸囪檿鐞�銆�
銆�銆�4. 娓│娓噺锛氱偤绀烘尝鍣ㄣ�侀牷璀滃垎鏋愬剙绛夊剙鍣ㄦ彁渚涢珮绮惧害鐨勬縺鍕典俊铏�銆�
銆�銆�5. 闊抽牷铏曠悊锛氱敤浣滈珮璩噺闊抽牷淇¤櫉鐨� D/A 杞夋彌锛屾敮鎸佸皥妤�(y猫)闊抽熆瑷倷銆�
銆�銆�6. 鏁�(sh霉)鎿�(j霉)閲囬泦绯荤当(t菕ng)锛氫綔鐐洪噸寤烘烤娉㈠櫒涔嬪墠鐨勪俊铏熺敓鎴愰儴鍒�锛岀⒑淇濋噰妯ｆ暩(sh霉)鎿�(j霉)鐨勬纰洪倓鍘熴��
DAC34H84
