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CDCE421ARGET データシート(PDF) 13 Page - Texas Instruments

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部品番号 CDCE421ARGET
部品情報  Fully-Integrated, Wide Range, Low-Jitter Crystal Oscillator Clock Generator
PDF  27 Pages
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

CDCE421ARGET データシート(HTML) 13 Page - Texas Instruments

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REGISTER DESCRIPTION
CDCE421A
www.ti.com..................................................................................................................................................................................................... SCAS873 – APRIL 2009
Table 7. Word 0
Recommended
Bit
Name
Description/Function
Type
Value
0
C0
Register selection
W
0
1
C1
Register selection
W
0
2
C2
Register selection
W
0
3
SELVCO
VCO select:
W
User
0 = VCO1
1 = VCO2
4
SELPRESC
Prescaler setting, Bit 0
W
User
5
SELPRESC
Prescaler setting, Bit 1
W
User
6
OUTSEL
Output divider select, Bit 0
W
User
7
OUTSEL
Output divider select, Bit1
W
User
8
OUTSEL
Output divider select, Bit 2
W
User
9
DRVSEL
Driver select:
W
User
0 =LVDS
1=PECL
10
TITEST1
Reserved
W
1
4
Divide by value (SELPRESC 1, SELPRESC 0)
5
Divide by 5 = (00), 3 = (01), 4 = (10), and 2 = (11)
6
Output divider (OUTSEL2, OUTSEL1, OUTSEL0)
7
Divide by 1 = (000) , 2 = (001), 4 = (010), 8 = (011), 16 = (100), 32 = (101)
8
Table 8. Word 1
Recommended
Bit
Name
Description/Function
Type
Value
0
C0
Register selection
W
1
1
C1
Register selection
W
0
2
C2
Register selection
W
0
3
LFRCSEL
Loop filter control settings, Bit 0
W
1
4
LFRCSEL
Loop filter control settings, Bit 1
W
1
5
LFRCSEL
Loop filter control settings, Bit 2
W
1
6
LFRCSEL
Loop filter control settings, Bit 3
W
1
7
LFRCSEL
Loop filter control settings, Bit 4
W
1
8
LFRCSEL
Loop filter control settings, Bit 5
W
0
9
LFRCSEL
Loop filter control settings, Bit 6
W
1
10
LFRCSEL
Loop filter control settings, Bit 7
W
0
Copyright © 2009, Texas Instruments Incorporated
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Product Folder Link(s): CDCE421A



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