Overview
Description
The 951462 is a main clock synthesizer chip that provides all clocks required for ATI RS/RD690-based systems. An SMBus interface allows full control of the device.
Features
- 2 - pairs of CPU pairs
- 8 - pairs of SRC pairs
- 4 - pairs of ATIG pairs
- 1 - HyperTransport 66MHz clock seed
- 2 - 48MHz USB clock
- 3 - 14.318MHz Reference clock
- CPU outputs cycle-to-cycle jitter 85ps
- SRC outputs cycle-to-cycle jitter 125ps
- ATIG outputs cycle-to-cycle jitter 125ps
- +/- 300ppm frequency accuracy on CPU, SRC & ATIG clocks
- 3 - Programmable Clock Request pins for SRC and ATIG clocks
- ATIGCLKs are programmable for frequency
- Spread Spectrum for EMI reduction
- Outputs may be disabled via SMBus
- External crystal load capacitors for maximum frequency accuracy
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 332 KB | |
| End Of Life Notice | PDF 720 KB | |
| Product Change Notice | PDF 611 KB | |
| Product Change Notice | PDF 611 KB | |
| Product Change Notice | PDF 596 KB | |
| Product Change Notice | PDF 544 KB | |
| Product Change Notice | PDF 95 KB | |
| Product Change Notice | PDF 50 KB | |
| Product Change Notice | PDF 361 KB | |
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
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