Product Overview
The Skyworks Si510/511 Crystal Oscillator (XO) is a versatile clock generator utilizing advanced DSPLL technology to provide any frequency from 100 kHz to 250 MHz. Unlike traditional XOs requiring a unique crystal for each frequency, this IC-based solution uses a single fixed crystal and a proprietary synthesizer, offering enhanced reliability, mechanical robustness, and excellent stability. Its superior supply noise rejection simplifies low-jitter clock generation in noisy environments. The Si510/511 is factory-configurable for various user specifications, including frequency, supply voltage, output format, and output enable polarity, with specific configurations programmed at shipment to eliminate long lead times and NRE charges.
Product Attributes
- Brand: Skyworks Solutions, Inc.
- Technology: DSPLL
- Certifications: Pb-free, RoHS compliant
Technical Specifications
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit | Notes |
| Operating Specifications | |||||||
| Supply Voltage | VDD | 3.3 V option | 2.97 | 3.3 | 3.63 | V | |
| 2.5 V option | 2.25 | 2.5 | 2.75 | V | |||
| 1.8 V option | 1.71 | 1.8 | 1.89 | V | |||
| Supply Current | IDD | CMOS, 100 MHz, single-ended | 21 | 26 | mA | ||
| LVDS (output enabled) | 19 | 23 | mA | ||||
| LVPECL (output enabled) | 39 | 43 | mA | ||||
| HCSL (output enabled) | 41 | 44 | mA | ||||
| Tristate (output disabled) | 18 | mA | |||||
| OE "1" Setting | VIH | See Note | 0.80 x VDD | V | Active high and active low polarity OE options available. Active high option includes an internal pull-up. Active low option includes an internal pull-down. | ||
| OE "0" Setting | VIL | See Note | 0.20 x VDD | V | |||
| OE Internal Pull-Up/Pull-Down Resistor | RI | 45 | k | ||||
| Operating Temperature | TA | 40 | 85 | oC | |||
| Output Clock Frequency Characteristics | |||||||
| Nominal Frequency | FO | CMOS, Dual CMOS | 0.1 | 212.5 | MHz | ||
| LVDS/LVPECL/HCSL | 0.1 | 250 | MHz | ||||
| Total Stability | Frequency Stability Grade C | 30 | +30 | ppm | Includes initial accuracy, operating temperature, supply voltage change, load change, shock and vibration (not under operation), and 10 years aging at 40 oC. | ||
| Frequency Stability Grade B | 50 | +50 | ppm | ||||
| Frequency Stability Grade A | 100 | +100 | ppm | ||||
| Temperature Stability | Frequency Stability Grade C | 20 | +20 | ppm | |||
| Frequency Stability Grade B | 25 | +25 | ppm | ||||
| Frequency Stability Grade A | 50 | +50 | ppm | ||||
| Startup Time | TSU | Minimum VDD until output frequency (FO) within specification | 10 | ms | |||
| Disable Time | TD | FO 10 MHz | 5 | s | |||
| FO < 10 MHz | 40 | s | |||||
| Enable Time | TE | FO 10 MHz | 20 | s | |||
| FO < 10 MHz | 60 | s | |||||
| Output Clock Levels and Symmetry | |||||||
| CMOS Output Logic High | VOH | 0.85 x VDD | V | ||||
| CMOS Output Logic Low | VOL | 0.15 x VDD | V | ||||
| CMOS Output Rise/Fall Time (20 to 80% VDD) | TR/TF | 0.1 to 212.5 MHz, CL = 15 pF | 0.45 | 0.8 | 1.2 | ns | |
| 0.1 to 212.5 MHz, CL = no load | 0.3 | 0.6 | 0.9 | ns | |||
| LVPECL Output Rise/Fall Time (20 to 80% VDD) | TR/TF | 100 | 565 | ps | |||
| HCSL Output Rise/Fall Time (20 to 80% VDD) | TR/TF | 100 | 470 | ps | |||
| LVDS Output Rise/Fall Time (20 to 80% VDD) | TR/TF | 350 | 800 | ps | |||
| LVPECL Output Common Mode | VOC | 50 to VDD 2 V, single-ended | VDD 1.4 V | V | |||
| LVPECL Output Swing | VO | 50 to VDD 2 V, single-ended | 0.55 | 0.8 | 0.90 | VPPSE | |
| LVDS Output Common Mode | VOC | 100 line-line, VDD = 3.3/2.5 V | 1.13 | 1.23 | 1.33 | V | |
| 100 line-line, VDD = 1.8 V | 0.83 | 0.92 | 1.00 | V | |||
| LVDS Output Swing | VO | Single-ended, 100 differential termination | 0.25 | 0.35 | 0.45 | VPPSE | |
| HCSL Output Common Mode | VOC | 50 to ground | 0.35 | 0.38 | 0.42 | V | |
| HCSL Output Swing | VO | Single-ended | 0.58 | 0.73 | 0.85 | VPPSE | |
| Duty Cycle | DC | All formats | 48 | 50 | 52 | % | |
| Output Clock Jitter and Phase Noise (LVPECL) | |||||||
| Period Jitter (RMS) | JPRMS | 10k samples | 1.3 | ps | |||
| Period Jitter (Pk-Pk) | JPPKPK | 10k samples | 11 | ps | |||
| Phase Jitter (RMS) | J | 1.875 MHz to 20 MHz integration bandwidth (brickwall) | 0.31 | 0.5 | ps | ||
| 12 kHz to 20 MHz integration bandwidth (brickwall) | 0.8 | 1.0 | ps | ||||
| Phase Noise, 156.25 MHz | N | 100 Hz | 86 | dBc/Hz | |||
| 1 kHz | 109 | dBc/Hz | |||||
| 10 kHz | 116 | dBc/Hz | |||||
| 100 kHz | 123 | dBc/Hz | |||||
| 1 MHz | 136 | dBc/Hz | |||||
| Additive RMS Jitter Due to External Power Supply Noise | JPSR | 10 kHz sinusoidal noise | 3.0 | ps | |||
| 100 kHz sinusoidal noise | ps | ||||||
2411041604_SKYWORKS-510GCA-CAAG_C7187210.pdf
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