Datasheet 5L1503 (IDT)

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MicroClock Programmable Clock 5L1503 Generator Datasheet Description Features
The 5L1503 is a series of small form factor programmable clock ▪ Proactive Power Saving (PPS) features save power during the generators intended for low-power, consumer, battery powered end device power-down mode applications, wearable and smart devices. ▪ Dynamic Frequency Control (DFC) feature allows programming The device is a 1 PLL + DCO architecture design with an external up to 4 difference frequencies that switch dynamically fundamental crystal or clock input. The device allows up to 3 ▪ Multiple output clock amplitude (1V, 1.1V, 1.2V and 1.8V) to unique frequency outputs. The 5L1503 has built-in unique support low swing clock requirement features such as Proactive Power Saving (PPS) and an extreme ▪ Dedicated 32kHz output with 6 clock amplitude options low power DCO to support system date/time keeping clock at (5L1503L) 32.768kHz. Dynamic Frequency Control (DFC) supports ▪ Configurable through OTP programming dynamical y changing between four different PLL frequencies via ▪ external requests with controlled frequency changes, reducing Spread spectrum clock support (5L1503S) frequency overshoot and undershoot (ORT). The 5L1503S device ▪ 1.8V operating supply voltage can also support a spread clock output for EMI reduction. For a ▪ 2 × 2 mm 10-VFQFPN package description of terms and their functions, see Glossary of Features. An internal OTP memory allows the user to store up to four
Output Features
independent configurations that can be loaded on power-up ▪ 3 LVCMOS outputs, 1MHz–100MHz or 32.768kHz without programming. ▪ Low-power 32.768kHz clock supported The 5L1503 supports three LVCMOS type outputs with VDDO1.8V, as well as various amplitude clocks. A low-power
Key Specifications
32.768kHz clock is supported with only less than 1μA current consumption for system RTC reference clock needs. ▪ Output cycle-cycle jitter: 50ps (typ) ▪ Low power-on ful y active mode: 2mA (typ) ▪ Low-power 32.768kHz < 1.0μA (5L1503L)
5L1503 Base Number Description VCO Range (MHz)
5L1503 Standard, External Crystal 50 – 130 5L1503L Ultra Low-power, External Crystal 50 – 130 5L1503S Spread Clock, External Crystal 500 –1100
Typical Applications
▪ SmartDevice ▪ Handheld ▪ Wearable applications ▪ Portable Consumer applications ©2019 Integrated Device Technology, Inc 1 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