Overview
Description
The 951412A is a main clock synthesizer chip that provides all clocks required for ATI RS480-based systems. An SMBus interface allows full control of the device.
Features
- 3 - 14.318 MHz REF clocks
- 1 - USB_48MHz USB clock
- 1 - HyperTransport 66 MHz clock seed
- 1 - PCI 33 MHz clock seed
- 2 - Pairs of AMD K8 clocks
- 6 - Pairs of SRC/PCI Express* clocks
- 2 - Pairs of ATIG (SRC/PCI Express) clocks
- 2 - Programmable Clock Request pins for SRC clocks
- Spread Spectrum for EMI reduction
- Outputs may be disabled via SMBus
- External crystal load capacitors for maximum frequency accuracy
Comparison
Applications
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
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