闋荤⿳闋婚浕璺ō瑷堟湡鏈牨鍛?
濮?鍚嶏細鏉?濮电捒 濮?鍚嶏細鏉?濮电捒 绯?绱氾細闆?姗熸墍 纰?涓 绯?绱氾細闆?姗熸墍 纰?涓 瀛?铏燂細7 9664 42 4 瀛?铏燂細7 9664 42 4
1.. Archiitecture: 1 Arch tecture:
VDD VoM3 C2 VG M1 C1 Vctrl M2 C1 M4 Vo+
L1
L2
Fig 1-1 鏈瀵﹂鎵浣跨敤鐨勯浕璺灦妲?
鍦ㄧ従浠婄殑閫氳▕绯荤当锛屽畬鍏ㄦ暣鍚堢殑澹撴帶闇囩洩鍣ㄥ皪鏂煎鐝惧柈涓鐒$窔闆绘櫠鐗囨槸閲?瑕佺殑涓濉娿傜敱鏂奸珮閫熻硣鏂欏偝閫佺殑闇姹備笉鏂峰鍔狅紝椹呬娇鎴戝戝緸 2.4GHz 闋诲付韬嶉插埌 5GHz 闋?甯?鐨?灞 閮?鍗 鍩?缍?璺?銆?鑰?鏈 鍙?姝?杩?鐨?澹?鎺?闇?鐩?鍣?鏋?妲?鏄?浜?鍙?绲?鍚?(cross-coupled)绲愭锛岄欐槸鍩烘柤瀹冪殑绨℃槗瑷▓鍙婃槗鏂煎晸鍕曢渿鐩瓑姊濅欢銆傝岀偤浜嗛檷 浣庡緸浜ゅ弶绲愬悎闆绘櫠楂旀墍鐢㈢敓鐨勭浉浣嶉洔瑷婏紝瑷▓鑰呴氬父鏈冧娇鐢?PMOS 浜ゅ弶绲愬悎浠?鏇?NMOS銆傚彟澶栵紝鑰冪暍瀛?Colpitts)闇囩洩鍣ㄤ篃鏄竴鍊嬪鐝句綆闆滆▕ CMOS 闇囩洩鍣ㄧ殑 濂介伕鎿囥?闆绘櫠楂旂殑闁冪垗闆滆▕锛屾槸灏庤嚧鍦?1/f3 鍗鍩熸檪杓夊瓙鍛ㄥ湇鐨勭浉浣嶉洔瑷?Phase Noise)鐨勫師鍥犮傚湪 CMOS 瑁界▼瑁忥紝闆绘櫠楂旂殑 1/f 闆滆▕閫氬父鏈冩瘮杓冮珮锛岃屼笖鏈冧护闇?鐩櫒鐨勭浉浣嶉洔瑷婄殑琛ㄧ従鍤撮噸鐨勪笅闄嶃備絾鏄紝鍦ㄤ竴娆℃柟鏅傦紝PMOS 鐨?1/f 闆滆▕閫氬父 姣?NMOS 鐨勪綆銆傚彟澶栵紝PMOS 闆绘櫠楂旂殑鐔辫級瀛愭晥鎳?hot carrier effect)閫氬父閮芥瘮 杓冨皬銆?缍撻亷娓噺寰岋紝鍦ㄩ浼肩殑鍋忓婧栦綅涓嬶紝PMOS 鍜?NMOS 闆绘櫠楂旀渶灏忕殑闆滆▕ 鎸囨暩(NFmin)浜﹂'绀?PMOS 鐨勬渶灏忛洔瑷婃寚鏁告瘮 NMOS 鐨勪綆銆傚洜姝わ紝鍦ㄩ渿鐩櫒鐨勬牳 蹇冨彧鍒╃敤 PMOS 闆绘櫠楂旂殑瑭憋紝鍙笡浣庡緸 1/f 闆滆▕褰㈡垚鐨?1/f3 鍗鍩熻鐨勭浉浣嶉洔瑷婁互 鍙?1/f2 鍗鍩熻鐨勭浉浣嶃?宸嫊鑰冪暍瀛愰渿鐩櫒鍙互琚В閲嬬偤锛屼互鍠瀷娉㈠嫊鍜岄洐鍨嬫尝鍕曠殑澹撳埗锛岀祼鍚堝叐 鍊嬬浉鍚岀殑鍠鑰冪暍瀛愰渿鐩櫒銆傚叾闆昏矾鏋舵鍦ㄥ湒 1-1 琛ㄧず銆傛闆昏矾浠?TSMC 0.18um 瑁界▼妯℃摤锛屽叾妯℃摤绲愭灉鏈冨湪涓嬮潰椤ず銆?
2.. Desiign fllow Path: 2 Des gn f ow Path:
Ideal 鈫?Pre-simulation (HSpice 銆?spectre RF ) 鈫?Layout (Cadence) 鈫扸erification ( Calibre )
3.. IIntroduciing the Siimullatiion Tooll: (Spectre RF) 3 ntroduc ng the S mu at on Too : (Spectre RF)
1.
Fig 3-1 棣栧厛鍟熷嫊 Cadence 2.
Fig 3-2 鐒跺緦閫插叆 Library manager 閬稿彇鎵闇闆昏矾瑷▓
3.
Fig 3-3 閫插叆闆昏矾瑷▓寰?榛為伕 analog environment 鍟熷嫊 Spectre RF 妯℃摤 4.
Fig 3-4 閫插叆 spectre RF 寰岄伕鍙栨墍闇閫茶鐨勬ā鎿強瑷畾璁婃暩
5.
Fig 3-5 瑷畾瀹屾垚寰屾寜涓?netlist & run 6.
Fig 3-6 妯℃摤绲愭灉娉㈠舰鍦栬〃
4.. Siimullatiion Resullt: 4 S mu at on Resu t:
閫欐妯℃摤鍒嗗垾鍦?Hspice 鍜?Spectre RF 涓婁綔妯℃摤锛屼娇鐢ㄥ叐绋粺浠堕茶妯℃摤锛?鏄偤浜嗗緱鍒版渶浣崇殑妯℃摤绲愭灉锛?
Specttre RF:: Spec re RF
浠ヤ笅鏄埄鐢?Spectre RF 灏嶉浕璺綔鍑哄叾鐗规фā鎿紝寰炲湒涓彲瑕嬶紝澹撴帶澹撶洩鍣?VCO) 杓?鍑鸿▕铏熺殑鎺佸箙(Swing) 鐐?1V锛岃屽叡妯¢粸 (common mode) 鍦?0.8v锛岀偤 VDD/2 鐨勪綅缃傜敱 鏂兼槸浣跨敤 LC tank 浣滅偤闇囩洩绐楋紝鎵浠ヤ笉鏈冨儚浣跨敤 delay Cell 鐨勭挵褰㈤渿鐩櫒(ring Oscillator) 鎿?鏈?Duty cycle 鐨?鍟?椤?銆?鑰?鍦?鍦?涓?浜?鍙?瑕?鍏?phase Noise 鐐?-112.2dbc/Hz@1Mhz锛岄洊鐒舵矑鏈夊鏂囩嵒涓殑 -120dbc/Hz@1Mhz 閭i杭濂姐備絾鏄湪 Tuning range 鐨勬瘮杓冧笂锛屾枃鐛讳腑鐨勭偤 400Mhz 鐨勫彲瑾跨瘎鍦嶏紝鑰屽湪鏈鐨勫椹椾腑鐐?800Mhz 鐨勫彲瑾?绡勫湇銆傚湪鐘犵壊 8db 鐨?phase noise 鐨勬儏娉佸緱鍒板鍔犻仈涓鍊嶄互涓婄殑鍙绡勫湇锛岄欑ó绲愭灉鏄?鍙互鎺ュ彈鐨勩?
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