Active Resonators
SiTime XCalibur™ active resonators are designed to replace 4-pin SMD crystal resonators in demanding applications such as automotive, industrial, and enterprise equipment. They provide excellent stability over a wide temperature range, greater reliability, reduced BOM, and ease of design. With short lead times and the elimination of design issues related to quartz crystal resonators – such as cold startup, EMI problems, the need for motional impedance (ESR) and negative resistance testing at every design and layout cycle – these active resonators simplify design and reduce time to market. These resonators also eliminate the need for tuning capacitors required for parallel resonant XTALs. And as an active device, they can drive two clock inputs, further reducing component count.
| Device | SiT1408 | SiT1409 | SiT1418 | SiT1419 | SiT1420 | SiT1421 | SiT1424 | SiT1425 |
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| Datasheet | %20(1).png/th%20(1)%20(1)__30x31.png){kind=icon} |
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| Frequency | 1 to 110 MHz | 115 to 137 MHz | 1 to 110 MHz | 115 to 137 MHz | 1 to 110 MHz | 115 to 137 MHz | 1 to 110 MHz | 115 to 137 MHz |
| Stability (PPM) |
±15 at 25°C ±20 all-inclusive ±25 all-inclusive ±50 all-inclusive |
±15 at 25°C ±20 all-inclusive ±25 all-inclusive ±50 all-inclusive |
±15 at 25°C ±20 all-inclusive ±25 all-inclusive ±30 all-inclusive ±50 all-inclusive |
±15 at 25°C ±20 all-inclusive ±25 all-inclusive ±30 all-inclusive ±50 all-inclusive |
±15 at 25°C ±20 all-inclusive ±25 all-inclusive ±30 all-inclusive ±50 all-inclusive |
±15 at 25°C ±20 all-inclusive ±25 all-inclusive ±30 all-inclusive ±50 all-inclusive |
±15 at 25°C ±20 all-inclusive ±25 all-inclusive ±30 all-inclusive ±50 all-inclusive |
±15 at 25°C ±20 all-inclusive ±25 all-inclusive ±30 all-inclusive ±50 all-inclusive |
| Temp. Range (°C) |
-20 to +70 -40 to +85 |
-20 to +70 -40 to +85 |
-40 to +105 -40 to +125 -40 to +150 (Contact SiTime) |
-40 to +105 -40 to +125 -40 to +150 (Contact SiTime) |
-55 to +125 -40 to +150 (Contact SiTime) |
-55 to +125 -40 to +150 (Contact SiTime) |
-40 to +85 -40 to +105 -40 to +125 -55 to +125 -40 to +150 (Contact SiTime) |
-40 to +85 -40 to +105 -40 to +125 -55 to +125 -40 to +150 (Contact SiTime) |
| Package Size (mm2) |
2.5x2.0 3.2x2.5 |
2.5x2.0 3.2x2.5 |
2.5x2.0 3.2x2.5 |
2.5x2.0 3.2x2.5 |
2.5x2.0 3.2x2.5 |
2.5x2.0 3.2x2.5 |
2.5x2.0 3.2x2.5 |
2.5x2.0 3.2x2.5 |
