Features
- Six differential LVDS output pairs
- Crystal oscillator interface
- Output frequency range: 62.5MHz - 625MHz
- Crystal input frequency range:15.625MHz - 25.5MHz
- RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz – 20MHz): 0.43ps (typical)
- Full 3.3V or mixed 3.3V core, 2.5V output supply mode
- -40°C to 85°C ambient operating temperature
- Available in lead-free (RoHS 6) package
844256DI - Block Diagram
Description
The 844256DI is a Crystal-to-LVDS Clock Synthesizer/Fanout Buffer designed for SONET and Gigabit Ethernet applications. The output frequency can be set using the frequency select pins and a 25MHz crystal for Ethernet frequencies, or a 19.44MHz crystal for SONET. The low phase noise characteristics of the 844256DI make it an ideal clock for these demanding applications.
| Part Number | Status | Samples | Stock | Package | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Qty. per Reel (#) | Qty. per Carrier (#) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 844256DGILF | Obsolete | N/A | In Stock | TSSOP | 24# | Tube | 1 | 0 | 62# | Yes | e3 Sn | -40 to 85°C |
| 844256DGILFT | Obsolete | N/A | In Stock | TSSOP | 24# | Reel | 1 | 2500# | 0 | Yes | e3 Sn | -40 to 85°C |
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- Application NotePDF 495 KB 7WDXRDKU4E7E-5-57312 May 12, 2014
- Application NotePDF 442 KB 7WDXRDKU4E7E-5-57298 May 08, 2014
- Application NotePDF 115 KB 7WDXRDKU4E7E-5-57294 May 07, 2014
- Application NotePDF 133 KB 7WDXRDKU4E7E-5-57291 May 06, 2014
- Application NotePDF 136 KB 7WDXRDKU4E7E-5-57044 Mar 12, 2014
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- Application NotePDF 1.99 MB 7WDXRDKU4E7E-5-57242 Mar 01, 2022
Application Notes & White Papers (18)
- Product Change NoticePDF 567 KB 7WDXRDKU4E7E-5-60948 Aug 26, 2016
- Product Change NoticePDF 439 KB 7WDXRDKU4E7E-5-56251 Oct 11, 2013
- Product Change NoticePDF 361 KB 7WDXRDKU4E7E-5-55130 Mar 24, 2013
- Product Change NoticePDF 254 KB 7WDXRDKU4E7E-5-54776 Dec 21, 2012
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