The SiT9121 is a highly flexible, ultra performance, programmable Differential Oscillatorthat supports LVPECL and LVDS output signaling types. This differential oscillator covers any frequency between 1 to 220 MHz, with best-in-class RMS phase jitter of 0.6 ps. Unlike quartz or SAW based traditional oscillators, the SiT9121 is available in any combination of voltage (2.5V to 3.3V), frequency stability (±10, ±20, ±25, and ±50 PPM) and package (3225, 5032, 7050) options.
- Summary
- Features & Benefits
- Part No. Generator
- Part No. Decoder
- Performance
- Ordering Information
- Model
- Qualpack
| Frequency Range (MHz) | 1 to 220 | |
| Frequency Stability (PPM) | ±10, ±20, ±25, ±50 | |
| RMS Integrated Phase Jitter (12kHz - 20MHz) | 0.6 ps | |
| Temp Range (°C) | -20 to +70, -40 to +85 | |
| Supply Voltage (V) |
2.5, 3.3, 2.25V to 3.63V continuous supply voltage |
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| Package LxWxH (mm) | 3.2 x 2.5 x 0.75, 5.0 x 3.2 x 0.75, 7.0 x 5.0 x 0.9 | |
| Status | Production |
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Measured Performance Reports on SiT9121
The following reports contain details of actual measurements on SiTime devices at the frequencies mentioned below and are intended to supplement the datasheet. Measurement conditions and equipment are specified in the individual files. If you desire a more detailed report than the ones provided below, please contact your local SiTime sales representative or email salessupport@sitime.com.
25 MHz LVPECL (
Subject to change without notice
Frequencies Not Supported
Range 1: From 209.000001 MHz to 210.999999 MHz
| SiT9121 | 2.5V | LVDS | IBIS |  SiT9120_1_LVDS_2p5 |
| LVPECL | IBIS | SiT9120_1_LVPECL_2p5 |
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| 3.3V | LVDS | IBIS | SiT9120_1_LVDS_3p3 |
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| LVPECL | IBIS | SiT9120_1_LVPECL_3p3 |
| Reliability Report |
