參數(shù)資料
型號(hào)： SM3E-19.44M
廠商： Connor-Winfield
文件頁數(shù)： 8/36頁
文件大?。?/td> 0K
描述： IC MOD TIMING 19.440MHZ STRAT 3E
標(biāo)準(zhǔn)包裝： 1
系列： SM3
類型： 定時(shí)模塊，系統(tǒng)時(shí)鐘
PLL： 是
主要目的： 以太網(wǎng)，ADM，DSLAM，SONET/SDH，Stratum，TDM
輸入： LVCMOS
輸出： LVCMOS
電路數(shù)： 1
比率 - 輸入:輸出： 8:3
差分 - 輸入:輸出： 無/無
頻率 - 最大： 19.44MHz
電源電壓： 3.135 V ~ 3.465 V
工作溫度： 0°C ~ 70°C
安裝類型： 通孔
封裝/外殼： 32-DIP 模塊
包裝： 管件
其它名稱： CW643
SM3E 19.44M
SM3E19.44M
SM3E Data Sheet #:
TM054
Page 16 of 36 Rev: 04 Date: 01/26/11
Copyright 2011 The Connor-Winfield Corp. All Rights Reserved
Specifications subject to change without notice
Register Descriptions and Operation continued
Intr_Event, 0x12 (R)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Lossof
Activerefer-
DPLLMode M/SRef
M/SRef
Anyrefer-
Lock
Signal
encechange
status
Changefrom Changefrom
erencechange erencechange
change
noactivityto
activitytono
fromnot
fromavailable
activity
availableto
abletonot
available
Interrupt state = 1. When an enabled interrupt occurs, the SPI_INT pin is asserted, active low. All interrupts are cleared
and the SPI_INT pin pulled high when the register is read. Reset default is 0. See Detailed Description section under
Interrupts and Reference Change in Autonomous Mode and Interrupts in Manual Mode
Intr_Enable, 0x13 (R/W)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
EnableInter- EnableInter- EnableInter-
EnableInter- EnableInter-
EnableInter-
ruptevent7: ruptevent6: ruptevent5:
ruptevent4: ruptevent3:
ruptevent2:
ruptevent1:
ruptevent0:
1:Enable
0:Disable
Default:0
Enables or disables the corresponding interrupts from asserting the SPI_INT pin. Interrupt events still appear in the
Intr_Event register independent of their “enable” state. Reset default is interrupts disabled.
Ref(1-8)_Frq_Offset, 0x14 ~ 0x1b (R)
Bit7~Bit0
2’scomplementvalueoffrequencyoffsetbetweenreferenceandcalibratedlocaloscillator,0.2ppmresolution
These registers indicate the frequency offset, in 0.2ppm resolution, between each reference and the local calibrated
oscillator.
0x14 - 0x1b correspond to Ref1 - Ref8.
Ref(1-8)_Frq_Priority, 0x1c ~ 0x23 (R/W)
Bit7~Bit4
Bit3
Bit2~Bit0
Frequency
Revertivity
Priority
0000:None
1:revertive
0:highest
0001:8kHz
0:non-revertive
7:lowest
0010:1.544MHz
Default:0,
Default:0
0011:2.048MHz
nonrevertive
0100:12.96MHz
0101:19.44MHz
0110:25.92MHz
0111:38.88MHz
1000:51.84MHz
1001:77.76MHz
1010-1111:Reserved
BITS 2 - 0 indicate the priority of each reference for use in automatic reference selection mode (bit 1 of the Ctl_Mode
register =0). In manual reference selection mode (bit 1 of the Ctl_Mode register = 1), these BITS are read-only and will
contain either the reset default or values written when last in automatic reference selection mode. For equal priority
values, lower reference numbers have higher priority.
Bit 3 specifies if the reference is revertive or non-revertive in automatic reference selection mode. When a reference
fails, the next highest priority “available” (signal present, non-masked, and acceptable frequency offset) reference will
be selected. When a reference returns, it will be switched to only if it is of higher priority and the current active reference
is marked “Revertive”.
BITS 7 - 4 indicate the auto-detected frequency for each reference. Invalid frequencies may result in erroneous device
operation. If there is no activity on a reference, bits 7-4will be = 0000. Bits 7-4 are read only. 0x1c - 0x23 correspond
to Ref1 - Ref8.
相關(guān)PDF資料
PDF描述
SM802104UMG TR IC SYNTHESIZER 2CH 24-QFN
SM802105UMG TR IC SYNTHESIZER 2CH 24-QFN
SM802108UMG IC SYNTEHSIZER 156.25MHZ 24QFN
SM802109UMG TR IC SYNTHESIZER QUAD 100MHZ 24QFN
SM840002KA TR IC CLK SYNTHESIZER LN 16-TSSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SM3F-100TQ-ACTEL 功能描述:ADAPTER MODULE 100TQFP RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 適配器 系列:* 標(biāo)準(zhǔn)包裝:96 系列:- 模塊/板類型:TQFP 插座模塊 適用于相關(guān)產(chǎn)品:-
SM3F-100VQ-ACT 制造商:Microsemi Corporation 功能描述:ACTEL VQ100 ADAPTER MODULES
SM3F-100VQ-ACTEL 功能描述:ADAPTER MODULE 100VQFP RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 適配器 系列:* 標(biāo)準(zhǔn)包裝:96 系列:- 模塊/板類型:TQFP 插座模塊 適用于相關(guān)產(chǎn)品:-
SM3F-108QN-ACTEL 功能描述:ADAPTER MODULE 108QFN RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 適配器 系列:* 標(biāo)準(zhǔn)包裝:96 系列:- 模塊/板類型:TQFP 插座模塊 適用于相關(guān)產(chǎn)品:-
SM3F-121CS-ACTEL 功能描述:ADAPTER MODULE 121CSP RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 適配器 系列:* 標(biāo)準(zhǔn)包裝:96 系列:- 模塊/板類型:TQFP 插座模塊 適用于相關(guān)產(chǎn)品:-
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*