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鍦�4.ADC娣风枈灏庤嚧鐨凥B1鏈夋晥婵炬尝鍣ㄩ熆鎳�(y墨ng)

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鍦�5.ADC娣风枈灏庤嚧鐨凥B1+HB2鏈夋晥婵炬尝鍣ㄩ熆鎳�(y墨ng)锛堟娊鍙栫巼=2锛�

鎴戝€戝凡缍�(j墨ng)瑷庤珫浜嗘娊鍙栨烤娉㈠櫒浣胯兘鏅傜殑瀵︽暩(sh霉)宸ヤ綔妯″紡锛岀従(xi脿n)鍦ㄦ垜鍊戝彲浠ユ帰瑷嶥DC鐨勫京鏁�(sh霉)宸ヤ綔妯″紡銆備粛浠D9680鐐轰緥銆傝垏DDC鐨勫鏁�(sh霉)宸ヤ綔妯″紡椤炰技锛岄€欓噷灏囧睍绀烘涓€鍖栫殑鎶藉彇婵炬尝鍣ㄩ熆鎳�(y墨ng)銆傚悓妯�锛岀ず渚嬫烤娉㈠櫒闊挎噳(y墨ng)鍦栦腑娌掓湁纰哄垏琛ㄦ槑鎻掑叆鎼嶈€楄垏闋荤巼涔嬮枔鐨勫叿楂旈棞(gu膩n)绯伙紝鑰屾槸褰㈣薄鍦版弿绻簡瑭叉烤娉㈠櫒鐨勮繎浼奸熆鎳�(y墨ng)銆傞€欐ǎ鍋氭槸鐐轰簡渚夸簬鏇村ソ鍦颁簡瑙DC娣风枈濡備綍褰遍熆婵炬尝鍣ㄩ熆鎳�(y墨ng)銆�

鍦ㄥ京鏁�(sh霉)妯″紡涓娇鐢―DC鏅�锛屽畠閰嶇疆鐐哄叿鏈変竴鍊嬪京鏁�(sh霉)杓稿嚭锛岀敱瀵︽暩(sh霉)鍜屽京鏁�(sh霉)闋诲煙锛堥€氬父绋辩偤I鍜孮锛夋(g貌u)鎴�?锛涗弧妾睤2鍙煡锛孒B1婵炬尝鍣ㄥ叿鏈変綆閫氶熆鎳�(y墨ng)锛岄€氬付鐐哄鏁�(sh霉)濂堝鏂壒鍗€(q奴)鐨�38.5%銆傞倓鏈変竴鍊嬮樆甯朵篃鍗犲鏁�(sh霉)濂堝鏂壒鍗€(q奴)鐨�38.5%锛屽叾閬庢浮甯跺崰鍓╀綑鐨�23%銆傚悓妯ｏ紝鍦ㄥ京鏁�(sh霉)鍩�锛岄€氬付鍜岄樆甯跺悇鍗犲京鏁�(sh霉)濂堝鏂壒鍗€(q奴)鐨�38.5%锛堝叡77%锛�锛岃€岄亷娓″付鍗犲墿浣欑殑23%銆�

鐣禜B1婵炬尝鍣ㄤ娇鑳�锛屽湪寰╂暩(sh霉)杓稿嚭妯″紡涓嬫搷浣淒DC鏅傦紝鎶藉彇鐜囩瓑浜庝簩锛岃几鍑洪噰妯ｉ€熺巼鐐鸿几鍏ラ噰妯ｆ檪閻樼殑浜屽垎涔嬩竴銆傛摯灞曞湒2涓殑鏇茬窔鍙’绀哄嚭鍦�6鎵€绀虹殑ADC娣风枈鐨勫奖闊�銆傚叾涓殑钘嶈壊瀵︾窔琛ㄧず瀵﹂殯婵炬尝鍣ㄩ熆鎳�(y墨ng)锛岃棈鑹茶櫅绶氬墖琛ㄧず鍥燗DC娣风枈鏁堟噳(y墨ng)鎵€鐢�(ch菐n)鐢熺殑婵炬尝鍣ㄧ殑鏈夋晥娣风枈闊挎噳(y墨ng)銆�7fS/8鐨勮几鍏ヤ俊铏熷皣娣风枈鍒扮涓€濂堝鏂壒鍗€(q奴)鐨刦S/8锛屼娇鍏朵綅浜嶩B1婵炬尝鍣ㄧ殑閫氬付鍏�(n猫i)銆傚悓涓€淇¤櫉鐨勫京鏁�(sh霉)閺″儚椐愮暀浜庘€�7fS/8锛屽苟灏囧湪寰╂暩(sh霉)鍩熸贩鐤婂埌鈥揻S/8锛屼娇鍏朵綅浜庡京鏁�(sh霉)鍩熺殑HB1婵炬尝鍣ㄩ€氬付鍏�(n猫i)銆�

鍦�6.ADC娣风枈灏庤嚧鐨凥B1鏈夋晥婵炬尝鍣ㄩ熆鎳�(y墨ng)锛堟娊鍙栫巼=2锛夆€斿京鏁�(sh霉)

鎺ヤ笅渚�锛屾垜鍊戝皣瑷庤珫HB1+HB2浣胯兘鐨勬儏娉�锛屽鍦�7鎵€绀恒€傚叾绲�(ji茅)鏋滄渻浣垮緱姣忓€婭鍜孮杓稿嚭鐨勬娊鍙栫巼鐐�4銆傞€欓噷鐨勮棈鑹插绶氫篃琛ㄧずHB1+HB2婵炬尝鍣ㄧ殑瀵﹂殯闋荤巼闊挎噳(y墨ng)銆侶B1+HB2婵炬尝鍣ㄥ悓鏅備娇鑳藉皣灏庤嚧姣忓€嬪鏁�(sh霉)鍜屽京鏁�(sh霉)鍩熶腑鐨勫彲鐢ㄥ付瀵偤鎶藉彇濂堝鏂壒鍗€(q奴)鐨�38.5%锛坒S/4鐨�38.5%锛屽叾涓璮S鐐鸿几鍏ラ噰妯ｆ檪閻橈級銆傝珛娉ㄦ剰ADC鐨勬贩鐤婃晥鎳�(y墨ng)鍙婂叾灏岺B1+HB2婵炬尝鍣ㄧ祫鍚堢殑褰遍熆銆備竴鍊嬪嚭鐝�(xi脿n)鍦�15fS/16鐨勪俊铏熷皣娣风枈鍒扮涓€濂堝鏂壒鍗€(q奴)鐨刦S/16銆傝┎淇¤櫉鍦ㄥ京鏁�(sh霉)鍩熺殑鈥�15fS/16鏈変竴鍊嬪京鏁�(sh霉)閺″儚锛屽苟灏囨贩鐤婂埌寰╂暩(sh霉)鍩熺涓€濂堝鏂壒鍗€(q奴)鐨勨€揻S/16銆傚悓鐞�锛岄€欎簺绀轰緥涔熷彲浠ユ摯灞曞埌HB3鍜孒B4鍧囦娇鑳界殑鎯呮硜銆傛湰鏂囦腑骞舵湭椤ず閫欎簺鍏�(n猫i)瀹�锛屼絾鏍规摎(j霉)鍦�7鎵€绀虹殑HB1+HB2闊挎噳(y墨ng)寰堝鏄撴帹绠楀嚭渚嗐€�

鍦�7.ADC娣风枈灏庤嚧鐨凥B1+HB2鏈夋晥婵炬尝鍣ㄩ熆鎳�(y墨ng)锛堟娊鍙栫巼=4锛夆€斿京鏁�(sh霉)

鐪嬪埌鎵€鏈夐€欎簺鎶藉彇婵炬尝鍣ㄩ熆鎳�(y墨ng)锛屾偍鐨勮叇娴烽噷鍙兘鏈冩湁閫欐ǎ鐨勫晱椤岋細"鎴戝€�?y艒u)妲鍖嗩€掓Э銆�?浠ュ強"閫欐ǎ鍋氭湁浠€涔堝ソ铏�锛�"涓嶅悓鐨勬噳(y墨ng)鐢ㄥ叿鏈変笉鍚岀殑瑕佹眰锛岃€岄€欎簺瑕佹眰鍙互寰濧DC杓稿嚭鏁�(sh霉)鎿�(j霉)鐨勬娊鍙栦腑鐛插埄銆傚叾涓竴鍊嬪師鍥犳槸瑕佸澶F闋诲付涓煇娈电嫻绐勯牷甯朵笂鐨勪俊鍣瘮銆傚彟涓€鍊嬪師鍥犳槸鐐轰簡浣胯檿鐞嗗付瀵洿灏忥紝閫欐ǎ鍙娇JESD204B鎺ュ彛鐨勮几鍑洪€氶亾閫熺巼闄嶄綆锛屽緸鑰屼究浜庝娇鐢ㄤ綆鎴愭湰鐨凢PGA銆傞€氶亷浣跨敤鍏ㄩ儴鍥涘€嬫娊鍙栨烤娉㈠櫒锛孌DC鍙鐝�(xi脿n)铏曠悊澧炵泭锛屽苟浣縎NR鏀瑰杽閬�10dB銆傚湪琛�1涓紝鎴戝€戝彲浠ョ湅鍒扮暥DDC宸ヤ綔浜庡鏁�(sh霉)妯″紡鍜屽京鏁�(sh霉)妯″紡鏅�锛屼笉鍚岀殑鎶藉彇婵炬尝鍣ㄩ伕鎿囨墍鎻愪緵鐨勫彲鐢ㄥ付瀵�銆佹娊鍙栫巼銆佽几鍑洪噰妯ｉ€熺巼鍜岀悊鎯砈NR鏀瑰杽鎯呮硜銆�

琛�1.DDC婵炬尝鍣ㄧ壒鎬�(AD9680)

闂�(gu膩n)浜嶥DC宸ヤ綔妯″紡鐨勮◣璜栨湁鍔╀簬娣卞叆浜嗚ВAD9680涓娊鍙栨烤娉㈠櫒鐨勫鏁�(sh霉)宸ヤ綔妯″紡鍜屽京鏁�(sh霉)宸ヤ綔妯″紡銆傞噰鐢ㄦ娊鍙栨烤娉㈠彲鎻愪緵澶氬€嬪ソ铏曘€侱DC鍙伐浣滀簬瀵︽暩(sh霉)妯″紡鎴栧京鏁�(sh霉)妯″紡锛屽厑瑷辩敤鎴舵牴鎿�(j霉)鐗瑰畾鎳�(y墨ng)鐢ㄧ殑闇€姹傞噰鐢ㄤ笉鍚岀殑鎺ユ敹鍣ㄦ嫇鎾层€傜祼(ji茅)鍚堢涓€閮ㄥ垎鎵€杩扮殑鍏�(n猫i)瀹�锛岄倓鏈夊姪浜庢帰瑷庨噰鐢ˋD9680鐨勪竴鍊嬬湡瀵︾ず渚嬨€傝┎绀轰緥灏囩稖鍚堝娓暩(sh霉)鎿�(j霉)鍜孷irtualEval涓皫鍑虹殑浠跨湡鏁�(sh霉)鎿�(j霉)锛屼互渚夸簬姣旇純绲�(ji茅)鏋�銆�

鍦ㄦ渚嬩腑鎴戝€戝皣閲囩敤鍦ㄧ涓€閮ㄥ垎涓浘浣跨敤鐨勭浉鍚屾浠躲€傝几鍏ラ噰妯ｉ€熺巼鐐�491.52MSPS锛岃几鍏ラ牷鐜囩偤150.1MHz銆侼CO闋荤巼鐐�155MHz锛屾娊鍙栫巼瑷�(sh猫)鐐�4锛堢敱浜嶯CO鍒嗚鲸鐜�锛屽闅汵CO闋荤巼鐐�154.94MHz锛�銆傚洜姝わ紝杓稿嚭閲囨ǎ閫熺巼鐐�122.88MSPS銆傜敱浜嶥DC閫茶寰╂暩(sh霉)娣烽牷锛屽洜姝ゅ垎鏋愪腑鍖呭惈寰╂暩(sh霉)闋诲煙銆傛敞鎰忥紝鍦�8涓坊鍔犱簡鎶藉彇婵炬尝鍣ㄧ殑闊挎噳(y墨ng)锛屼互娣辩传鑹叉洸绶氳〃绀恒€�

鍦�8.淇¤櫉閫氶亷DDC淇¤櫉铏曠悊妯″鈥旀娊鍙栨烤娉�

NCO鍋忕Щ鍚庣殑闋昏瓬锛�

1.鍩洪牷寰�+150.1MHz涓嬬Щ鑷斥€�4.94MHz銆�

2.鍩洪牷閺″儚寰炩€�150.1MHz闁嬪鍋忕Щ锛屽苟绻炲洖鑷�+186.48MHz銆�

3.浜屾璜ф尝寰�191.32MHz涓嬬Щ鑷�36.38MHz銆�

4.涓夋璜ф尝寰�+41.22MHz涓嬬Щ鑷斥€�113.72MHz銆�

2鍊嶆娊鍙栧悗鐨勯牷璀滐細

1.鍩洪牷浣嶄簬鈥�4.94MHz銆�

2.鍩洪牷閺″儚鍚戜笅杞�(zhu菐n)鎻涜嚦鈥�59.28MHz锛屽苟鐢盚B1鎶藉彇婵炬尝鍣ㄨ“娓�銆�

3.浜屾璜ф尝浣嶄簬36.38MHz銆�

4.涓夋璜ф尝鐢盚B1鎶藉彇婵炬尝鍣ㄨ“娓�銆�

4鍊嶆娊鍙栧悗鐨勯牷璀滐細

1.鍩洪牷浣嶄簬鈥�4.94MHz銆�

2.鍩洪牷閺″儚浣嶄簬鈥�59.28MHz锛屽苟鐢盚B2鎶藉彇婵炬尝鍣ㄨ“娓�銆�

3.浜屾璜ф尝浣嶄簬-36.38MHz锛屽苟鐢盚B2鎶藉彇婵炬尝鍣ㄨ“娓�銆�

4.涓夋璜ф尝缍�(j墨ng)閬庢烤娉�锛屽熀鏈敱HB2鎶藉彇婵炬尝鍣ㄥ畬鍏ㄦ秷闄ゃ€�

AD9680-500鐨勫娓祼(ji茅)鏋滃鍦�9鎵€绀�銆傚熀闋讳綅浜庘€�4.94MHz?锛涱嫙l閺″儚浣嶄簬鈥�59.28MHz锛屽箙搴︾偤鈥�67.112dBFS锛屾剰鍛宠憲閺″儚琛版笡浜嗗ぇ绱�66dB銆備簩娆¤娉綅浜�36.38MHz锛屽苟琛版笡浜嗗ぇ绱�10鑷�15dB銆備笁娆¤娉㈢稉(j墨ng)閬庡厖鍒嗘烤娉�锛屽娓祼(ji茅)鏋滀笉楂樹簬鍣簳銆�

鍦�9.淇¤櫉缍�(j墨ng)閬嶥DC鍚庣殑FFT寰╂暩(sh霉)杓稿嚭锛圢CO=155MHz锛�4鍊嶆娊鍙栵級

鐝�(xi脿n)鍦ㄥ彲浣跨敤VirtualEval渚嗚瀵熶豢鐪熺祼(ji茅)鏋滆垏瀵︽脯绲�(ji茅)鏋滅殑灏嶆瘮鎯呮硜銆傞鍏�锛屽緸缍�(w菐ng)绔欎笂鎵撻枊瑭插伐鍏凤紝骞堕伕鎿囪浠跨湡鐨凙DC锛堣鍦�10锛�銆俈irtualEval宸ュ叿鍦ˋDI缍�(w菐ng)绔欑殑VirtualEval涓�銆俈irtualEval涓殑AD9680妯″瀷鍚湁涓€闋呮柊闁嬬櫦(f膩)鐨勫姛鑳斤紝鍏佽ū鐢ㄦ埗浠跨湡涓嶅悓鐨凙DC閫熷害绛夌礆銆傜敱浜庢绀轰緥浣跨敤浜咥D9680-500锛屾墍浠ヨ┎鍔熻兘寰堥噸瑕�銆俈irtualEval鍔犺級鍚庯紝棣栧厛鎻愮ず閬告搰鐢�(ch菐n)鍝侀鍒ュ拰鐢�(ch菐n)鍝�銆傛敞鎰忥紝VirtualEval涓笉鍍呮兜钃嬮珮閫烝DC锛岃€屼笖鍖呭惈绮惧瘑ADC銆侀珮閫烡AC浠ュ強闆嗘垚/灏堢敤杞�(zhu菐n)鎻涘櫒閫欎簺鐢�(ch菐n)鍝�銆�

鍦�10.VirtualEval涓殑鐢�(ch菐n)鍝侀鍒ュ拰閬稿瀷

寰炵敘(ch菐n)鍝佸垪琛ㄤ腑閬告搰AD9680銆傞€欏皣鏈冩墦闁婣D9680浠跨湡鐨勪富闋�銆俈irtualEval涓殑AD9680妯″瀷閭勫惈鏈変竴鍊嬫鍦�锛岃┏绱颁粙绱逛簡ADC妯℃摤鍔熻兘鍜屾暩(sh霉)瀛楀姛鑳界殑鍏�(n猫i)閮ㄩ厤缃�銆傝┎妗嗗湒鑸嘇D9680鏁�(sh霉)鎿�(j霉)鎵嬪唺涓殑妗嗗湒鐩稿悓銆傚湪姝ら爜闈㈢殑宸﹀伌(c猫)涓嬫媺鑿滃柈涓伕鎿囨墍闇€鐨勯€熷害绛夌礆銆傚皪浜庢湰渚嬶紝閫熷害绛夌礆閬告搰500MHz锛屽鍦�11鎵€绀�銆�

鍦�11.VirtualEval涓殑AD9680閫熷害绛夌礆閬告搰鍜屾鍦�

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