74HCT9046A Datasheet, PDF (43/43 Pages) NXP Semiconductors – PLL with bandgap controlled VCO

NXP Semiconductors
19. Contents
1
2
3
4
5
6
7
7.1
7.2
8
8.1
8.2
8.3
8.3.1
8.3.2
8.4
9
10
11
12
13
13.1
13.2
13.3
14
15
16
17
17.1
17.2
17.3
17.4
18
19
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 5
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
Functional description . . . . . . . . . . . . . . . . . . . 6
Differences with respect to the familiar
74HCT4046A . . . . . . . . . . . . . . . . . . . . . . . . . . 6
VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Phase comparators. . . . . . . . . . . . . . . . . . . . . . 7
Phase Comparator 1 (PC1) . . . . . . . . . . . . . . . 7
Phase Comparator 2 (PC2) . . . . . . . . . . . . . . . 9
Loop filter component selection . . . . . . . . . . . 13
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 14
Recommended operating conditions. . . . . . . 15
Static characteristics. . . . . . . . . . . . . . . . . . . . 15
Dynamic characteristics . . . . . . . . . . . . . . . . . 20
Application information. . . . . . . . . . . . . . . . . . 27
Filter design considerations for PC1 and
PC2 of the 74HCT9046A . . . . . . . . . . . . . . . . 29
PLL design example . . . . . . . . . . . . . . . . . . . . 33
Further information . . . . . . . . . . . . . . . . . . . . . 37
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 38
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 41
Legal information. . . . . . . . . . . . . . . . . . . . . . . 42
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 42
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Contact information. . . . . . . . . . . . . . . . . . . . . 42
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
74HCT9046A
PLL with band gap controlled VCO
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2009.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [e-mail]
Date of release: 15 September 2009
Document identifier: 74HCT9046A_6