百利通diodes品牌亞陶晶振系列晶體振蕩器低成本和高精度的時鐘源
      作者:壹兆電子應(yīng)用工程經(jīng)理 
      溫補晶振許多電子電路都需要振蕩器來同步活動或提供頻率參考.例如,在微控制器中,時鐘信號控制數(shù)據(jù)進出存儲器的移動、指令的執(zhí)行和外部通信的速度.在無線電系統(tǒng)中,振蕩器提供固定頻率,允許發(fā)射器和接收器進行通信.
      除了頻率之外,振蕩器還有幾個可能很重要的屬性.準確性和穩(wěn)定性以百萬分之幾或ppm為單位對于通信協(xié)議和計時很重要.對于便攜式或電池供電的應(yīng)用,低功耗可能是一個關(guān)鍵因素.臺灣亞陶diodes晶振品牌,JC25260006，TCXO晶振

停產(chǎn)設(shè)備	更換	停產(chǎn)設(shè)備	更換
JC2519202P	JC25192002	AP2318AMP-ADJTRG1	diodes晶振 F62400017
JC2521701P	JC25217001	AP2318DN-1.3TRG1	F62450006
JC2526006P	JC25260006	AP2318DN-ADJTRG1	F62450008
JC2526007P	JC25260007	AP2318M-ADJTRG1	F62500007
JC25406012	JC25406002	AS358P-G1	F62500010
JC2551P0038.40000	JC25384002	AZ1085CD-1.8TRG1	F62500011
JC3512201P	JC35122001	AZ1085CD-2.5TRG1	F62500017
JC3516301P	JC35163001	AZ1085CD-3.3TRG1	F62500019
JC3526003P	JC35260003	AZ1085CD-ADJTRG1	F62500037
JC3532301P	JC35323001	AZ1085C8-18TRE1	F62500039
JC3532401P	JC35324001	AZ1085CS-1.8TRG1	F62500041
JC3536801P	JC35368001	AZ1085C8-25TRE1	F62500043
JT2510001P	JT25100001	AZ1085C8-2.5TRG1	F62500044Z
JT2516302P	JT25163002	AZ1085CS2-1.8TRE1	F62500048
JT2524001P	JT25240001	AZ1085CS2-1 8TRG1	FE2700004
JT2524003P	JT25240003	AZ1085CS2-2.5TRE1	F62700007
JT2525001P	JT25250001	AZ1085CS2-2 STRG1	F804000010
JT255170039.00000	JT25390003	AZ1085CS2-3.3TRE1	F80600005
JT2552W0026000000	JT25260034	AZ1085CS2-3.3TRG1	F80800016
J2553F00206000000	JT25260039	AZ1085CS2-ADJTRE1	F80810002
JT255310052 00000	JT25520003	AZ1085CS2-ADJTRG1	F81200056
JT2553P00.00000	JT25400001	AZ1085CS-33TRE1	F81200057
J2553S0000000	JT25200003	AZ1085CS-3.3TRG1	_F81430020
JT255380038.400000	JT25384012	AZ1085CS-ADJTRE1	F81430073
JT255B10032.00000	JT25320011	AZ1085CS-ADJTRG1	F81600002
JT255BP0016.384000	JT25163015	AZ1085D-1.8TRE1	F8100021
JT32510030.00000	JT35300004	AZ1085D-33TRE1	F816000220
JT3251P0011.059200	JT35110001	AZ1085D-3.3TRG1	F81840002
JT3251P0025.000000	JT35250003	AZ1085D-ADJTRE1	F818400110
JT3251P0032.000000	JT35320013	AZ1085D-ADJTRG1	F82400022
JT3251P0000000	JT35400003	F91600002	F02500003
JT3251P0040.433333	JT35404001	F9100004	FQ2500011
JT32510048000000	JT35480003	F91600033	FQ2500012
JT3251P0050.000000	J53500004	F91600039Q	FQ2500013
WT2539002P	JT25390003	F916000420	F02500014
WX50320100.00000	NX50E201000000	F916000450	FQ2500015
WX5032B0125.00000	NX5032D0125.000000	F1600046	F02700007
WX53A00002	NX5032E010000000	F916000470	FO3000008
WX53C50002	NX5032D0125.00000	F82000002	F04800003
WX7012B0125.003125	NX7012B0125.003125	F92000021	F04800005
WX7012E0125.003750	NX7012E0125.003750	F82000022	F0500001
WX7032D0200.00000	NX7032D0000000	F020000240	F0500002
WX7032E0133. 33000	NX73D33004	F92400001	F05400001
WX7032E0200.00000	NX7032020.000000	F92400002	FS1220002
WX71C50004	NX7012B0125000000	F92400018	FS1220004
WX7 1C50018	NX7012B0125.003125	F92400054	F82000001
WX71C50026	NX7012E0125.003750	F92400056	FS2200001
WX73D33006	NX73D33004	F92400059	FS2400001
ECERA品牌 WX7300005	NX7032D0000000	F92400060	FS2400002

      可能需要考慮的其他特性是成本以及是否可以調(diào)整頻率.石英晶體振蕩器使用某種類型的諧振電路周圍的反饋來產(chǎn)生固定頻率的輸出.諧振電路可以是電阻-電容RC或電感-電容LC網(wǎng)絡(luò).這些很簡單,并且允許頻率在很寬的范圍內(nèi)變化.另一方面,它們不能提供許多應(yīng)用所需的準確性和穩(wěn)定性. 臺灣亞陶diodes晶振品牌,JC25260006，TCXO晶振                                                                     
         
       圖 1:亞陶晶振使用 CMOS 反相器的皮爾斯振蕩器由于壓電效應(yīng),晶體例如石英可以充當諧振器.
      當向晶體施加壓力時,會在其兩端產(chǎn)生電壓,并且當施加電壓時,晶體會變形.這可以與反饋一起用作高度準確和穩(wěn)定的諧振器,其中固有頻率取決于晶體的尺寸及其切割方式.簡單的晶體振蕩器晶體本身是無源元件,需要與振蕩電路配合使用.這通常集成到需要時鐘信號的設(shè)備中.
      例如,微控制器通常有兩個引腳來連接晶體和幾個外部負載電容器.這些電容器需要與晶體的指定負載電容(CL)相匹配,以確保它以正確的頻率振蕩.改變負載電容的值會稍微改變振蕩頻率.臺灣亞陶diodes晶振品牌,JC25260006，TCXO晶振

WX73K00007	NX7032020.000000	F92400063	FS2500001Z
WX73K00009	NX73K00015	F92400065	FS2600002
AZ1085S-2.5TRE1	F82400024	F92400067	F52600005
AZ1085S2-1.5TRE1	F82500007	F92500001	F08000020
AZ1085S2-3.3TRE1	F82500053	F92500002	F200000101
AZ1085S 3.3TRE1	F82500068	F92500007	JC2516301P
AZ1085S-ADJTRE1	F82500071	F92500016	JC25192050
AZ1117EH-1.2TRG1	F82500079	F92500037	JC2519206P
AZ1117EH-1.5TRG1	F82700003	F92500038	JC2525002P
AZ1117EH-1.8TRG1	F83120001	F92500042	JC2526005P
AZ1117EH-2.5TRG1	F83530002	F92500047	JC2527101P
AZ1117EH-3.3TRG1	F84000005Q	JT25260270	JT3530002P
AZ1117EH-5.0TRG1	F90800012	JT2526030P	JT3530003P
AZ1117EH-ADJTRG1	F90800013	JT2526032P	JT3532003P
AZ4558CP-G1	F90800014	JT2526033Q	JT3532005P
F50730013	F90800016	JT2526035P	JT3532007P
F50730020	F90800021Q	JT2526501P	JT3532010P
F50800002	F90800024Q	JT2527001P	JT35320102
F51100005	F90800028Q	JT2530002P	JT3538401P
F51200024	F90800029Q	JT2530003P	JT3540001P
F51600005	F90800031Q	JT2532001P	JT3540002P
F51600010	F90800036Q	JT2532002P	JT3540004P
F52000013	F90810004	JT2532003P	JT3540005P
F52400010	F91000010	JT2532004P	JT3548002P
F52400014	F91100009	JT2532005P	JT3551001P
F52500008	F91200057	JT2532009Q	NES6NAD1-12 00080
F52700007	F91200060	JT25400100	NES6NAD1-25. 000-180
F60800008	F91200064	JT2548002P	NES6NAK1-14.3181-20T)
F60800010	F91200084	JT2548005P	NES6NA1K-20000-18(T)
F61200003	F91200087	JT25500020	NES6NAK1-30000-14T)
F61200007	F91200088	JT2551F003200000	NES6NED1-27 000180
F61200030		JT2551P0049.152000	NES7GHE1-07.3728-20[0)
F92500055	JC2533601P	JT25515024.00000	NES7LB1-07.3728-18CD)
F92500058	JC2540001P	JT2551S0026.000000	NES7NAD1-07 3728-200)
F92500061Q	JC2548002P	JT2553F0032.0000000	NES7NAD1-12.0000
F92500062	JC2548003P	JT255310026.00000	NES7NAD1-250CT)
F92500064Q	JC2550001P	JT2553P0016.369000	NES7NAD1-250-20
F92600002	JC2550401P	JT2553P0026.000000	NES7NAD1-270-180TL
F92700031	JC2550402P	J255038.400000	RV52F62001
F92700032	JC255CF0019.200000	JT255BS0038.400000	RV71C28001
F92700036	JC255CP0019.200000		RV72A00001
F92700039	JC3125001Z	JT255CF0026.00000	RV72F62001
F92700041	JC3251J0030.720000	JT255CP00.00000	WC215CF0019.200000
F92700044	JC3251Q0032 00000	JT255CT0038.400000	WC2519206P
F92700046	JC325BG0036.864000	JT3126001P	WC2519214P
F92710002	JC325BJ0032.00000	JT321 1W0025.000000	WC2521701P
F93000017	JC3512801P	JT3251A0027 000000	WL 2125001Z
F93000020	JC3520001P	JT3251F0032.000000	WL2125004Q
F93000021Q	JC3521201P	JT3251F0040.000000	WL 2125005P
F9320001 1Z	JC3524001P	JT3251H24000000	WL2125006Q

      這種效應(yīng)可以在壓控晶體振蕩器(VCXO)中利用,其中可變電容組件變?nèi)荻O管或變?nèi)荻O管用于調(diào)整頻率.您可以使用分立器件構(gòu)建外部振蕩器,例如使用晶體管或反相邏輯門來提供放大和反饋.亞陶晶振ECERA品牌,溫補晶振
      然而,盡管晶體供應(yīng)商提供設(shè)計指南,但從頭開始構(gòu)建高質(zhì)量的振蕩器可能會很復(fù)雜.使用現(xiàn)成的振蕩器模塊通常更方便.該振蕩器模塊包含晶體和振蕩器電路——您只需要提供電源.振蕩器模塊通常比集成在目標設(shè)備中的基本電路精確得多.盡管晶體非常穩(wěn)定,百利通亞陶晶振振蕩器的頻率會受到電源電壓和溫度變化的影響.

F93330001	JC3526004P	JT3251P0049. 15200	WL2126003Q
F94800031	JC3530001P	JT3251P0049.152000	WL2132004P
F94800034Z	JC3532002P	JT3251Q005.000000	WL 2138401P
F94800035	JC3533601 P	JT3251000.000000	WL2152001P
F95000003	JC3540001P	JT3251S0016.384000	WL3120002Q
F95000004	JL2119201P	JT3251W0033.00000	WL3124501Q
F95000006	JL21 19202P	JT325210032. 000000	WL3125005Q
F95000007	JL 25384010	JT3253F0016.369000	WL 3140002P
F95000009	JL3125001P	JT3253F0026.000000	WL3140007Q
F95400008	JT2510003P	JT325310026 000000	WT2516340Q
F95400010	JT2516309P	JT3253100.00000	WT2516346P
F95540001Q	JT2516310P	JT325310037 400000	WT2526042P
F61 200038	F91200090Z	JT325B100.00000	WT2526043P
F61200043Z	F91200096	JT325BQ0024000000	WT2530001P
F61200047	F91200098	JT3512002P	WT2532005P
F61220002	F91200100Q	JT3516001P	WT2539001P
F61350006	F91220008Z	JT3516301P	WT3124502Z
F61350007	F91350020	JT3516302P	WT3125001P
F61430004	F91350026	JT3516303P	WT3138401P
F61 600002	F91430003	JT3516304P	WT31 50001P
F61600019	F91430007	JT35 16306P	WX5012D0125.0000
F61840010	F91430012	JT3519204P	WX51C50004
F62000012	F91430035	JT3524004P	WX51C50010
F62000018	F91430039	JT3526004P	WX51D33007
FQ1600002	JT2516312P	JT3526005P	WX7012C0125000000
FQ1600005Z	JT2519208P	JT3526006P	WX7 1A00003
FQ1 600007Q	JT2519209Q	JT3526000P	WX7 1C50006
FQ1 600009Q	JT2524002P	JT3526010P	XK16327001
FQ1630001Q	JT2525005Q	JT3526016P	XK16327002
FQ2000002Q	JT2526002P	JT3526018P	XK16327003
FQ2400001	JT2526007P	JT3526023P	XK16327004
FQ2400002	JT2526008P	JT3527001P	diodes品牌亞陶晶振
FQ2400003	JT2526010Z	JT3530001P	亞陶diodes晶振ECERA品牌
FQ2400005	JT2526013Q	AZ431BZ-AE1	AZ432AZ-E1
FQ2400007	JT2526020P	AZ431BZ-AG1	AZ432AZ-G1
FQ2500001	JT2526026S	AZ431BZ-BE1	AZ432BZ-E1
AP3021MTR-G1	AS431AZ-G1	AZ431L AZ-E1.	AZ432BZ-G1
AP3036BKTR- G1	AS431BZ-E1	AZ431L AZ-G1	PI3DPX1202A1ZBEX
AP3036KTR-G1.	AS431BZ-G1	AZ431LBZ-E1	PI3DPX1 202A1ZBIEX
AP3171MPTR-G1	AS431 IAZ-G1	AZ431LBZ-G1	PI3DPX1202A2ZBEX
AP431 IAZTR-G1	AS431 IBZ-G1	PI3DPX1202A2ZBIEX	PI5USB1468AZAE+CWX
AP431IBZTR-G1	AZ431AZ-AE1	PI3EQX10904ZHEX	PT8A9011WE
AS431AZ-E1	AZ431AZ-BE1	PI3USB223ZMEX	RX52N3201Q

      亞陶晶振ECERA品牌,溫補晶振這些影響可以通過使用溫度補償晶體振蕩器(TCXO)模塊來最小化.TCXO模塊包括調(diào)整頻率以補償溫度變化影響的電路.該模塊通常還包括一個集成穩(wěn)壓器,以減少外部電源電壓變化的影響.TCXO晶振可以實現(xiàn)優(yōu)于2ppm的穩(wěn)定性.晶體振蕩器提供簡單、低成本和高精度的時鐘源,頻率范圍廣,適用于多種類型的應(yīng)用.