SI532 SILABS | Alldatasheet

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Technical content

Features

Applications

Description

The Si532 dual frequency XO utilizes Silicon Laboratories advanced DSPLL® circuitry to provide a very low jitter clock for all output frequencies. The Si532 is available with any-rate output frequency from 10 to 945 MHz and selected frequencies to 1400 MHz. Unlike traditional XOs where a different crystal is required for each output frequency, the Si532 uses one fixed crystal frequency to provide a wide range of output frequencies. This IC based approach allows the crystal resonator to be optimized for superior frequency, stability, and reliability. In addition, DSPLL clock synthesis provides superior supply noise rejection, simplifying the task of generating low jitter clocks in noisy environments often found in communication systems. The Si532 IC based XO is factory configurable for a wide variety of user specifications including frequency, supply voltage, and output format. Specific configurations are factory programmed into the Si532 at the time of shipment, thereby eliminating the long lead times associated with custom oscillators. Functional Block Diagram „ Available with any-rate output frequencies from 10 to 945 MHz and selected frequencies to 1.4 GHz „ Two selectable output frequencies „ Industry standard 7x5 mm package „ Available CMOS, LVPECL, LVDS & CML outputs „ 3.3, 2.5, and 1.8 V supply options „ 3x better frequency stability than SAW based oscillators „ 3rd generation DSPLL® with superior jitter performance „ Internal fixed crystal frequency ensures high reliability and low aging „ Lead-free/RoHS-compliant „ SONET/SDH „ xDSL „ 10 GbE LAN/WAN „ Low jitter clock generation „ Optical modules „ Test and measurement Fixed Frequency XO Any-rate 10–1400 MHz DSPLL® Clock Synthesis VDD CLK+CLK– GNDFS OE Ordering Information: See page 7. Si5602 PRELIMINARY D ATA S HEET

  1. Electrical Specifications

Table 1. Si532 Electrical Specifications Specified at time of order by P/N.

500 MHz

3.3 V option

2.5 V option

1.8 V option

Table 2. Absolute Maximum Ratings Table 1. Si532 Electrical Specifications (Continued)

Table 3. Environmental Conditions Table 4. Pinout

1 FS Frequency Select

2 OE Output Enable

3 GND Ground

4 CLK+ Oscillator Output

5 CLK–

The Si532 was designed to support a variety of options in cluding frequency, tuning slope, output format, and VDD. VCXO to access this tool and for further ordering instructions. Figure 3. Part Number Convention

532 X X

A six digit code will be assigned by SiLabs for the specified combination of frequencies.

8 Preliminary Rev. 0.3 DOCUMENT CHANGE LIST Revision 0.2 to Revision 0.3 „ Updated the “Features” section. „ Updated Table 1, “Si532 Electrical Specifications,” on page 2. z Updated LVDS, CML, and CMOS electric specifications. „ Updated Figure 1, “Si532 Outline Diagram,” on page „ Updated 4. "Ordering Information" on page 7. z Updated Figure 3, “Part Number Convention,” on page

Preliminary Rev. 0.3 9 NOTES:

10 Preliminary Rev. 0.3 CONTACT INFORMATION Silicon Laboratories Inc.

4635 Boston Lane

Austin, TX 78735 Tel: 1+(512) 416-8500 Fax: 1+(512) 416-9669 Toll Free: 1+(877) 444-3032 Email:VCXOinfo@silabs.com Internet: www.silabs.com Silicon Laboratories, Silicon Labs, and DSPLL are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders. The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice. Silicon Laboratories assumes no responsibility for errors and omissions, and disclaims responsibility for any consequences resulting from the use of information included herein. Additionally, Silicon Laboratories assumes no responsibility for the functioning of undescribed features or parameters. Silicon Laboratories reserves the right to make changes without further notice. Silicon Laboratories makes no warranty, rep- resentation or guarantee regarding the suitability of its products for any particular purpose, nor does Silicon Laboratories assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation conse- quential or incidental damages. Silicon Laboratories products are not designed, intended, or authorized for use in applications intended to support or sustain life, or for any other application in which the failure of the Silicon Laboratories product could create a situation where per- sonal injury or death may occur. Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized ap- plication, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages.