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The ICS9148-58 is the single chip clock solution for Desktop/ Notebook designs using the VIA MVP3 style chipset. It provides all necessary clock signals for such a system. Spread spectrum may be enabled through I2C programming. Spread spectrum typically reduces system EMI by 8dB to 10dB. This simplifies EMI qualification without resorting to board design ite.
Generates the following system clocks: - 4 CPU(2.5V/3.3V) upto 100MHz. - 6 PCI(3.3V) @ 33.3MHz - 2AGP(3.3V) @ 2 x PCI - 12 SDRAMs(3.3V) @ either CPU or AGP - 2 REF (3.3V) @ 14.318MHz Skew characteristics: - CPU CPU<250ps - SDRAM SDRAM < 250ps - CPU SDRAM < 250ps - CPU(early) PCI : 1-4ns Spread Spectrum 0 to -5% down spread. Serial I2C interface for Power Management, Frequency Select, Spread Spectrum. Efficient Power management scheme through PCI and CPU STOP CLOCKS. Uses external 14.318MHz crystal 48 pin 300mil SSOP. Block Diagram Pin Configuration Power Groups VDD1 .
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | ICS9148-53 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 2 | ICS9148-02 |
Integrated Circuit Systems |
Pentium/ProTM System Clock Chip |
|
| 3 | ICS9148-03 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 4 | ICS9148-08 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 5 | ICS9148-10 |
Integrated Circuit Systems |
Pentium/ProTM System Clock Chip |
|
| 6 | ICS9148-11 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 7 | ICS9148-111 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 8 | ICS9148-12 |
Integrated Circuit Systems |
Pentium/ProTM System Clock Chip |
|
| 9 | ICS9148-13 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 10 | ICS9148-17 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 11 | ICS9148-18 |
Integrated Circuit Systems |
Pentium/ProTM System Clock Chip |
|
| 12 | ICS9148-20 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|