Datasheet 5L1503 (IDT) - 6
| 制造商 | IDT |
| 描述 | MicroClock Programmable Clock Generator |
| 页数 / 页 | 29 / 6 — Figure 4. PPS Assertion/Deassertion Timing Chart. PPS assertion. MHz … |
| 修订版 | 20190619 |
| 文件格式/大小 | PDF / 417 Kb |
| 文件语言 | 英语 |
Figure 4. PPS Assertion/Deassertion Timing Chart. PPS assertion. MHz clock. 32K clocks. OUTn. OEn_PPS input. pin. Lose an edge
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link to page 7 5L1503 Datasheet
Figure 4. PPS Assertion/Deassertion Timing Chart PPS assertion MHz clock 32K clocks OUTn OEn_PPS input pin Lose an edge PPS deassertion 32K clocks MHz clock OUTn MHz clock OEn_PPS input pin Receive an edge PPS Function Programming
▪ Refer to the OE Pin Function table to have proper PPS function selected for OE pin(s). Note that the register default is set to Output Enable (OE) function for OE pins. ▪ Have proper setup to Byte 16 for OE1–OE2 function selection. For PPS function, select 10 to control register bits.
Output Divider Selection Table 3. Output Divider Selection Output Divider bits<2:0> Output Divider bits<4:3> 000 001 010 011 100 101 00
1 3 5 7 9 11
01
2 6 10 14 18 22
10
4 12 20 28 36 44
11
8 24 40 56 72 88 ©2019 Integrated Device Technology, Inc 6 June 19, 2019 Document Outline Description Typical Applications Features Output Features Key Specifications Block Diagram Pin Assignments Figure 1. Pin Assignments for 2.0 × 2.0 mm 10-VFQFPN Package Pin Descriptions Table 1. Pin Descriptions Device Feature and Function DFC – Dynamic Frequency Control Figure 2. DFC Function Block Diagram Table 2. DFC Function Priority DFC Function Programming PPS – Proactive Power Saving Function Figure 3. PPS Function Block Diagram Figure 4. PPS Assertion/Deassertion Timing Chart PPS Function Programming Output Divider Selection Table 3. Output Divider Selection Device Output Support 5L1503 5L1503L 5L1503S OE Pin Function Table 4. OE Pin Function Table 5. OE Pin Function Summary Table 6. PD# Priority Spread Spectrum Spread Spectrum Digital Spread Spectrum Figure 5. Digital Spread Spectrum Reference Input and Selection Crystal Input (X1/X2) Table 7. Programmable Tuning Capacitors Figure 6. Crystal Oscillator Reference Circuit Absolute Maximum Ratings Table 8. Absolute Maximum Ratings Thermal Characteristics Table 9. Thermal Characteristics Recommended Operating Conditions Table 10. Recommended Operating Conditions Crystal Characteristics Table 11. Crystal Characteristics DC Electrical Characteristics Table 12. DC Electrical Characteristics – Current Table 13. DC Electrical Characteristics – Input and Output Voltage AC Electrical Characteristics Table 14. AC Timing Electrical Characteristics I2C Bus DC Characteristics Table 15. I2C Bus DC Characteristics Table 16. I2C Bus AC Characteristics Spread Spectrum Generation Specifications Table 17. Spread Spectrum Generation Specifications (5L1503S only) General I2C Interface Information How to Write How to Read Glossary of Features Table 18. Glossary of Features Package Outline Drawings Ordering Information Marking Diagrams Revision History
Figure 4. PPS Assertion/Deassertion Timing Chart PPS assertion MHz clock 32K clocks OUTn OEn_PPS input pin Lose an edge PPS deassertion 32K clocks MHz clock OUTn MHz clock OEn_PPS input pin Receive an edge PPS Function Programming
▪ Refer to the OE Pin Function table to have proper PPS function selected for OE pin(s). Note that the register default is set to Output Enable (OE) function for OE pins. ▪ Have proper setup to Byte 16 for OE1–OE2 function selection. For PPS function, select 10 to control register bits.
Output Divider Selection Table 3. Output Divider Selection Output Divider bits<2:0> Output Divider bits<4:3> 000 001 010 011 100 101 00
1 3 5 7 9 11
01
2 6 10 14 18 22
10
4 12 20 28 36 44
11
8 24 40 56 72 88 ©2019 Integrated Device Technology, Inc 6 June 19, 2019 Document Outline Description Typical Applications Features Output Features Key Specifications Block Diagram Pin Assignments Figure 1. Pin Assignments for 2.0 × 2.0 mm 10-VFQFPN Package Pin Descriptions Table 1. Pin Descriptions Device Feature and Function DFC – Dynamic Frequency Control Figure 2. DFC Function Block Diagram Table 2. DFC Function Priority DFC Function Programming PPS – Proactive Power Saving Function Figure 3. PPS Function Block Diagram Figure 4. PPS Assertion/Deassertion Timing Chart PPS Function Programming Output Divider Selection Table 3. Output Divider Selection Device Output Support 5L1503 5L1503L 5L1503S OE Pin Function Table 4. OE Pin Function Table 5. OE Pin Function Summary Table 6. PD# Priority Spread Spectrum Spread Spectrum Digital Spread Spectrum Figure 5. Digital Spread Spectrum Reference Input and Selection Crystal Input (X1/X2) Table 7. Programmable Tuning Capacitors Figure 6. Crystal Oscillator Reference Circuit Absolute Maximum Ratings Table 8. Absolute Maximum Ratings Thermal Characteristics Table 9. Thermal Characteristics Recommended Operating Conditions Table 10. Recommended Operating Conditions Crystal Characteristics Table 11. Crystal Characteristics DC Electrical Characteristics Table 12. DC Electrical Characteristics – Current Table 13. DC Electrical Characteristics – Input and Output Voltage AC Electrical Characteristics Table 14. AC Timing Electrical Characteristics I2C Bus DC Characteristics Table 15. I2C Bus DC Characteristics Table 16. I2C Bus AC Characteristics Spread Spectrum Generation Specifications Table 17. Spread Spectrum Generation Specifications (5L1503S only) General I2C Interface Information How to Write How to Read Glossary of Features Table 18. Glossary of Features Package Outline Drawings Ordering Information Marking Diagrams Revision History