The Cascade™ SiT95141 is a single-chip MEMS clock generator optimized for the highest level of clock tree integration. This clock-system-on-a-chip (ClkSoC) consolidates multiple clock ICs and oscillators into a single device. Its low noise quad-PLL architecture and programmable output drivers provide up to 10 differential or 20 LVCMOS low-jitter clock outputs. It supports 4 additional clock inputs with Frac-N dividers, enabling virtually any input-to-output frequency translation configurations from 8 kHz to 2.1 GHz.
This clock generator integrates SiTime’s third-generation ApexMEMS™ resonator. This integrated MEMS approach eliminates the traditional clock dependency on crystal reference and quartz related issues, and improves system robustness:
The SiT95141 is supported by TimeMaster™ software that simplifies clock tree design. The device can also be shipped with a user-specified, factory pre-programmed default startup configuration. The device configuration can be re-programmed twice using two banks of one-time-programmable (OTP) memory during manufacturing or configured in-system via I2C/SPI for additional BOM flexibility. The SiT95141 is also supported with the SiT6503EB evaluation board and SiT6506EB device programmer.
"Specs" | "Value" |
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Operating Temperature Range (°C) | -40 to +85 |
Package Type (mm²) | 9x9 mm, 64-pin QFN |
Number of Inputs | 4 |
Number of Outputs | 10 |
Input Frequency Range | 8 kHz to 2.1 GHz (differential), 8 kHz to 250 MHz (LVCMOS) |
Output Type | LVPECL, CML, HCSL, LVDS, LVCMO |
Output Frequency Range | 8 kHz to 2.1 GHz (differential), 8 kHz to 250 MHz (LVCMOS), 1 PPS (one output only) |
Number of PLL/Clock Domains | 4 PLL, 1 time domain |
Phase Jitter (rms) | 120 fs |
Voltage Supply (V) | 1.8, 2.5, 3.3 |
Operating Mode | Free running, synchronized |
Features | Redundant clock inputs with manual switching, DCO mode via I2C or SPI, 5 ppt resolution, programable output delay control |
Availability | Production |
Image: SiT95141 clock generator 64-pin package, top & bottom
SiT6503EB Eval Board User Manual for Cascade SiT9514x devices – Configure and evaluate device performance
SiT6506EB Programmer User Manual for Cascade SiT9514x devices – Program and burn SiT9514x devices
Cascade SiT9514x GUI Software User Manual – Get GUI installation, operation, configuration details
Cascade SiT9514x GUI Software Version 1.32.9 – Download software .exe file
Cascade SiT9514x GUI Release Notes – Get details on the latest version
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