Product Overview
The Skyworks Solutions Si530/531 Crystal Oscillator (XO) is an advanced, IC-based clock generator utilizing DSPLL circuitry to deliver low jitter clock signals at high frequencies. It offers flexible, any-rate output frequencies ranging from 10 MHz to 945 MHz, with select frequencies extending up to 1.4 GHz. Unlike traditional XOs, this device uses a single fixed crystal to achieve a wide frequency range, ensuring exceptional frequency stability and reliability. Its DSPLL clock synthesis provides superior supply noise rejection, making it ideal for generating low jitter clocks in noisy communication system environments. The Si530/531 is factory configurable for various user specifications, including frequency, supply voltage, output format, and temperature stability, with factory programming eliminating long lead times for custom oscillators.
Product Attributes
- Brand: Skyworks Solutions, Inc.
- Technology: DSPLL circuitry
- Package: Industry-standard 5 x 7 mm
- Compliance: Pb-free/RoHS-compliant
- Certifications: Meets MIL-STD-883 qualification test requirements for Mechanical Shock, Mechanical Vibration, Solderability, Gross & Fine Leak, Resistance to Solder Heat, and J-STD-020 MSL1.
Technical Specifications
| Model | Frequency Range | Output Formats | Supply Voltage Options | Temperature Stability (ppm, max, ) | Total Stability (ppm, max, ) | Phase Jitter (RMS) | Period Jitter (RMS) |
| Si530/531 | 10 MHz to 945 MHz (select to 1.4 GHz) | CMOS, LVPECL, LVDS, CML | 3.3 V, 2.5 V, 1.8 V | 7, 20, 50 | 20, 31.5, 61.5 | 0.25 - 0.62 ps (typical, depending on frequency and bandwidth) | 2 ps (typical) |
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit |
| Recommended Operating Conditions |
| Supply Voltage (3.3 V option) | VDD | | 2.97 | 3.3 | 3.63 | V |
| Supply Voltage (2.5 V option) | VDD | | 2.25 | 2.5 | 2.75 | V |
| Supply Voltage (1.8 V option) | VDD | | 1.71 | 1.8 | 1.89 | V |
| Operating Temperature Range | TA | | 40 | | 85 | C |
| Output Frequency Characteristics |
| Nominal Frequency (LVPECL/LVDS/CML) | fO | | 10 | | 945 | MHz |
| Nominal Frequency (CMOS) | fO | | 10 | | 160 | MHz |
| Initial Accuracy | fi | Measured at +25 C | | 1.5 | | ppm |
| Aging (first year) | fa | | | 3 | | ppm |
| Powerup Time | tOSC | Time from powerup to fO | | | 10 | ms |
| Output Levels and Symmetry |
| LVDS Output Mid-level | VO | | 1.125 | 1.20 | 1.275 | V |
| LVDS Differential Swing (VOD) | VOD | | 0.5 | 0.7 | 0.9 | VPP |
| CMOS VOH (IOH = 32 mA) | VOH | | 0.8 x VDD | | VDD | V |
| CMOS VOL (IOL = 32 mA) | VOL | | | | 0.4 | V |
| Rise/Fall Time (20/80%) (CMOS, CL = 15 pF) | tR, tF | | | 1 | | ns |
| Symmetry (duty cycle) | SYM | | 45 | | 55 | % |
| Period Jitter |
| Period Jitter (RMS) | JPER | Any output mode | | 2 | | ps |
| Period Jitter (Peak-to-Peak) | JPER | Any output mode | | 14 | | ps |
| Thermal Characteristics |
| Thermal Resistance (Junction to Ambient) | JA | Still Air | | 84.6 | | C/W |
| Thermal Resistance (Junction to Case) | JC | Still Air | | 38.8 | | C/W |
| Absolute Maximum Ratings |
| Maximum Operating Temperature | TAMAX | | | | 85 | C |
| Supply Voltage (1.8 V Option) | VDD | | 0.5 | | 1.9 | V |
| Supply Voltage (2.5/3.3 V Option) | VDD | | 0.5 | | 3.8 | V |
| Storage Temperature | TS | | 55 | | 125 | C |
| ESD Sensitivity (HBM) | ESD | JESD22-A114 | | 2500 | | V |
| Applications |
| SONET/SDH |
| Networking |
| SD/HD Video |
| Test and Measurement |
| Clock and Data Recovery |
| FPGA/ASIC Clock Generation |
