Skyworks Si535/536 Ultra Low Jitter Crystal Oscillator (XO)
Product Overview
The Skyworks Si535/536 Ultra Low Jitter Crystal Oscillator (XO) leverages advanced DSPLL circuitry to deliver ultra-low jitter clock signals at high-speed differential frequencies. Unlike traditional XOs requiring a unique crystal for each output frequency, the Si535/536 utilizes a single fixed crystal to generate a wide range of output frequencies. This IC-based design ensures exceptional frequency stability and reliability. The DSPLL clock synthesis offers superior supply noise rejection, simplifying the generation of low jitter clocks in noisy communication system environments. Factory-programmed at shipment, this IC-based XO eliminates long lead times associated with 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. Moisture Sensitivity Level J-STD-020, MSL1.
- Contact Pads: Gold over Nickel
Applications
- 10/40/100G data centers
- 10G Ethernet switches/routers
- Fibre channel/SAS/storage
- Enterprise servers
- Networking
- Telecommunications
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 | ||
| CLK 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 (20 ppm option) | 7 | +7 | ppm | |||
| Temperature Stability (7 ppm option) | 20 | +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 | ||
| CLK Output Levels and Symmetry | ||||||
| LVPECL VO Mid-level | VO | VDD 1.42 | VDD 1.25 | VDD | V | |
| LVPECL VOD Swing (diff) | VOD | 1.1 | 1.9 | VPP | ||
| LVPECL VSE Swing (Single-ended) | VSE | 0.55 | 0.95 | VPP | ||
| LVDS VO Mid-level | VO | 1.125 | 1.20 | 1.275 | V | |
| LVDS VOD Swing (diff) | VOD | 0.5 | 0.7 | 0.9 | VPP | |
| Rise/Fall time (20/80%) | tR, tF | 350 | ps | |||
| Symmetry (duty cycle) Differential | SYM | 45 | 55 | % | ||
| CLK Output 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 | |
| CLK Output Period Jitter | ||||||
| Period Jitter* (RMS) | JPER | N = 1000 cycles | 2 | ps | ||
| Period Jitter* (Peak-to-Peak) | JPER | N = 1000 cycles | 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 | ||
| Ambient Temperature | TA | 40 | 85 | C | ||
| Junction Temperature | TJ | 125 | C | |||
| Absolute Maximum Ratings | ||||||
| Maximum Operating Temperature | TAMAX | 85 | C | |||
| Supply Voltage, 2.5/3.3 V Option | VDD | 0.5 | +3.8 | V | ||
| Input Voltage (any input pin) | VI | 0.5 | VDD + 0.3 | V | ||
| Storage Temperature | TS | 55 | +125 | C | ||
| ESD Sensitivity (HBM, per JESD22-A114) | ESD | 2500 | V | |||
| Soldering Temperature (Pb-free profile) | TPEAK | 260 | C | |||
| Soldering Temperature Time @ TPEAK (Pb-free profile) | tP | 2040 | seconds | |||
Models and Pinouts
| Model | Pin 1 | Pin 2 | Pin 3 | Pin 4 | Pin 5 | Pin 6 |
|---|---|---|---|---|---|---|
| Si535 | NC | OE | GND | CLK+ | CLK | VDD |
| Si536 | OE | NC | GND | CLK+ | CLK | VDD |
Note: OE pin includes a 17 k pullup resistor to VDD.
Ordering Information Convention
Part Number Structure: 53x X X [Frequency] X [Option1] [Option2] [Revision Letter]
Example: 535AB156M250DGR
- 535/536: Device Series
- A/B/E/F: VDD (3.3V or 2.5V), Output Format (LVPECL or LVDS), Output Enable Polarity (High)
- 156M250: Frequency (e.g., 156.250 MHz)
- D/G/R: Operating Temp Range (C), Packaging (Tape & Reel)
- B/C: Temperature Stability (ppm, max, ) / Total Stability (ppm, max, )
Available Frequencies (Examples): 100.000 MHz (100M000), 106.250 MHz (106M250), 125.000 MHz (125M000), 156.250 MHz (156M250), 312.500 MHz (312M500)
Package Outline Dimensions
| 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 |
6-Pin PCB Land Pattern Dimensions
| Dimension | Min | ||
|---|---|---|---|
| C1 | 4.20 | ||
| E | 2.54 | ||
| X1 | 1.55 | ||
| Y1 | 1.95 |
Mark Specification
| Line | Position | Description |
|---|---|---|
| 1 | 110 | Part Family Number, 53x |
| 2 | 110 | Si535, Si536: Option1 + Option2 + Freq(7) + Temp OR Option1 + Option2 + ConfigNum(6) + Temp |
| 3 | Position 1 | Pin 1 orientation mark (dot) |
| Position 2 | Product Revision (D) | |
| Position 36 | Tiny Trace Code | |
| Position 7 | Year (least significant digit) | |
| Position 89 | Calendar Work Week number | |
| Position 10 | + to indicate Pb-Free and RoHS-compliant |
2411272144_SKYWORKS-535EB106M250DG_C17652409.pdf
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
