Product Overview
The Skyworks Si535/536 is an Ultra Low Jitter Crystal Oscillator (XO) that leverages advanced DSPLL circuitry to deliver high-speed differential clock frequencies with exceptional stability and reliability. Unlike traditional XOs, it utilizes a single fixed crystal to generate a wide range of output frequencies, simplifying design and reducing lead times. Its IC-based design offers superior supply noise rejection, making it ideal for noisy communication system environments. The Si535/536 is factory programmed and available in industry-standard 5 x 7 mm packages with LVPECL and LVDS output options, and 3.3 V or 2.5 V supply options. Key applications include 10/40/100G data centers, 10G Ethernet switches/routers, Fibre Channel/SAS/storage, enterprise servers, networking, and telecommunications.
Product Attributes
- Brand: Skyworks Solutions, Inc.
- Technology: DSPLL circuitry
- Package: Industry-standard 5 x 7 mm
- Compliance: Pb-free/RoHS-compliant
- Output Options: LVPECL, LVDS
- Supply Voltage Options: 3.3 V, 2.5 V
- Frequency Stability: 3x better than SAW-based oscillators
Technical Specifications
| 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 Current (Output enabled, LVPECL) | IDD | 111 | 121 | mA | ||
| Supply Current (Output enabled, LVDS) | IDD | 90 | 98 | mA | ||
| Supply Current (Tristate mode) | IDD | 60 | 75 | mA | ||
| Output Enable (OE) VIH | VIH | 0.75 x VDD | V | |||
| Output Enable (OE) VIL | VIL | 0.5 | V | |||
| Operating Temperature Range | TA | 40 | 85 | C | ||
| Output Frequency Characteristics | ||||||
| Nominal Frequency | fO | LVPECL/LVDS | 100 | 312.5 | MHz | |
| Initial Accuracy | fi | Measured at +25 C at time of shipping | 1.5 | ppm | ||
| Temperature Stability | 7 | 20 | +7 | ppm | ||
| Temperature Stability | +20 | ppm | ||||
| Aging (Frequency drift over first year) | fa | 3 | ppm | |||
| Aging (Frequency drift over 20 year life) | fa | 10 | ppm | |||
| Total Stability (Temp stability = 20 ppm) | 31.5 | ppm | ||||
| Total Stability (Temp stability = 7 ppm) | 20 | ppm | ||||
| Powerup Time | tOSC | TA = 40C to +85C | 10 | ms | ||
| Output Levels and Symmetry | ||||||
| LVPECL Mid-level | VO | 50 to VDD 2.0 V | VDD 1.42 | VDD 1.25 | V | |
| LVPECL Swing (diff) | VOD | 1.1 | 1.9 | VPP | ||
| LVPECL Swing (Single-ended) | VSE | 0.55 | 0.95 | VPP | ||
| LVDS Mid-level | VO | Rterm = 100 (differential) | 1.125 | 1.20 | 1.275 | V |
| LVDS Swing (diff) | VOD | 0.5 | 0.7 | 0.9 | VPP | |
| Rise/Fall time (20/80%) | tR, tF | 350 | ps | |||
| Symmetry (duty cycle) | SYM | Differential | 45 | 55 | % | |
| Phase Jitter | ||||||
| Phase Jitter* (RMS) | J | 10 kHz to 1 MHz (data center) | 0.19 | 0.35 | ps | |
| Phase Jitter* (RMS) | J | 12 kHz to 20 MHz brickwall | 0.25 | 0.40 | ps | |
| Period Jitter | ||||||
| Period Jitter* (RMS) | JPER | N = 1000 cycles | 2 | ps | ||
| Period Jitter* (Peak-to-Peak) | JPER | N = 1000 cycles | 14 | ps | ||
| Package Dimensions (mm) | ||||||
| Dimension | Min | Nom | Max | |||
| A | 1.50 | 1.65 | 1.80 | |||
| b | 1.30 | 1.40 | 1.50 | |||
| c | 0.50 | 0.60 | 0.70 | |||
| D | 5.00 BSC | |||||
| D1 | 4.30 | 4.40 | 4.50 | |||
| e | 2.54 BSC | |||||
| E | 7.00 BSC | |||||
| E1 | 6.10 | 6.20 | 6.30 | |||
| H | 0.55 | 0.65 | 0.75 | |||
| L | 1.17 | 1.27 | 1.37 | |||
| p | 1.80 | 2.60 | ||||
| R | 0.70 REF | |||||
| aaa | 0.15 | |||||
| bbb | 0.15 | |||||
| ccc | 0.10 | |||||
| ddd | 0.10 | |||||
| eee | 0.05 | |||||
2411272144_SKYWORKS-535EC212M500DG_C17645683.pdf
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