Electronic Components Datasheet Search |
|
CY22150FZXCT Datasheet(PDF) 4 Page - Cypress Semiconductor |
|
CY22150FZXCT Datasheet(HTML) 4 Page - Cypress Semiconductor |
4 / 18 page CY22150 Document #: 38-07104 Rev. *K Page 4 of 18 Frequency Calculation and Register Definitions The CY22150 is an extremely flexible clock generator with four basic variables that are used to determine the final output frequency. They are the input reference frequency (REF), the internally calculated P and Q dividers, and the post divider, which can be a fixed or calculated value. There are three formulas to determine the final output frequency of a CY22150 based design: ■ CLK = ((REF * P)/Q)/Post Divider ■ CLK = REF/Post Divider ■ CLK = REF. The basic PLL block diagram is shown in Figure 2. Each of the six clock outputs on the CY22150 has a total of seven output options available to it. There are six post divider options available: /2 (two of these), /3, /4, /DIV1N and /DIV2N. DIV1N and DIV2N are independently calculated and are applied to individual output groups. The post divider options can be applied to the calculated VCO frequency ((REF*P)/Q) or to the REF directly. In addition to the six post divider output options, the seventh option bypasses the PLL and passes the REF directly to the crosspoint switch matrix. Figure 2. Basic Block Diagram of CY22150 PLL (Q+2) VCO (2(PB+4)+PO) /2 /3 /2 LCLK1 LCLK2 LCLK3 LCLK4 CLK5 CLK6 CLKSRC Crosspoint Switch Matrix [44H] [44H] [44H,45H] [45H] [45H,46H] REF PFD Divider Bank 1 [45H] DIV1SRC [OCH] /4 DIV2SRC [47H] Divider Bank 2 DIV1N [OCH] DIV2N [47H] /DIV1N 1 0 1 0 [42H] [40H], [41H], [42H] /DIV2N Qtotal Ptotal CLKOE [09H] [+] Feedback |
Similar Part No. - CY22150FZXCT |
|
Similar Description - CY22150FZXCT |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |