CS2200-OTP

DS842F1

2

TABLE OF CONTENTS

1. PIN DESCRIPTION ................................................................................................................................. 4

2. TYPICAL CONNECTION DIAGRAM ..................................................................................................... 5

3. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 6

RECOMMENDED OPERATING CONDITIONS .................................................................................... 6

ABSOLUTE MAXIMUM RATINGS ........................................................................................................ 6

DC ELECTRICAL CHARACTERISTICS ................................................................................................ 6

AC ELECTRICAL CHARACTERISTICS ................................................................................................ 7

4. ARCHITECTURE OVERVIEW ............................................................................................................... 8

4.1 Delta-Sigma Fractional-N Frequency Synthesizer ........................................................................... 8

5. APPLICATIONS ..................................................................................................................................... 9

5.1 One Time Programmability .............................................................................................................. 9

5.2 Timing Reference Clock Input .......................................................................................................... 9

5.2.1 Internal Timing Reference Clock Divider ................................................................................. 9

5.2.2 Crystal Connections (XTI and XTO) ...................................................................................... 10

5.2.3 External Reference Clock (REF_CLK) .................................................................................. 10

5.3 Output to Input Frequency Ratio Configuration ............................................................................. 11

5.3.1 User Defined Ratio (RUD) ..................................................................................................... 11

5.3.2 Ratio Modifier (R-Mod) .......................................................................................................... 11

5.3.3 Effective Ratio (REFF) .......................................................................................................... 11

5.3.4 Ratio Configuration Summary ............................................................................................... 12

5.4 PLL Clock Output ........................................................................................................................... 13

5.5 Auxiliary Output .............................................................................................................................. 14

5.6 Mode Pin Functionality ................................................................................................................... 14

5.6.1 M1 and M0 Mode Pin Functionality ....................................................................................... 14

5.6.2 M2 Mode Pin Functionality .................................................................................................... 15

5.6.2.1 M2 Configured as Output Disable .............................................................................. 15

5.6.2.2 M2 Configured as R-Mod Enable .............................................................................. 15

5.6.2.3 M2 Configured as AuxOutSrc Override ..................................................................... 15

5.7 Clock Output Stability Considerations ............................................................................................ 16

5.7.1 Output Switching ................................................................................................................... 16

5.7.2 PLL Unlock Conditions .......................................................................................................... 16

5.8 Required Power Up Sequencing for Programmed Devices ........................................................... 16

6. PARAMETER DESCRIPTIONS ........................................................................................................... 17

6.1 Modal Configuration Sets ............................................................................................................... 17

6.1.1 R-Mod Selection (RModSel[1:0]) ...........................................................................................17

6.1.2 Auxiliary Output Source Selection (AuxOutSrc[1:0]) ............................................................. 18

6.2 Ratio 0 - 3 ...................................................................................................................................... 18

6.3 Global Configuration Parameters ................................................................................................... 18

6.3.1 AUX PLL Lock Output Configuration (AuxLockCfg) .............................................................. 18

6.3.2 Reference Clock Input Divider (RefClkDiv[1:0]) .................................................................... 18

6.3.3 Enable PLL Clock Output on Unlock (ClkOutUnl) ................................................................. 19

6.3.4 M2 Pin Configuration (M2Config[2:0]) ................................................................................... 19

7. CALCULATING THE USER DEFINED RATIO .................................................................................... 20

7.1 12.20 Format .................................................................................................................................. 20

8. PROGRAMMING INFORMATION ........................................................................................................ 21

9. PACKAGE DIMENSIONS .................................................................................................................... 22

THERMAL CHARACTERISTICS ......................................................................................................... 22

10. ORDERING INFORMATION .............................................................................................................. 23

11. REVISION HISTORY .......................................................................................................................... 24