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The ICS9250-25 is a single chip clock solution for desktop designs using the 810/810E and Solano 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 iter.
• 2 - CPUs @ 2.5V, up to 153.33MHz.
• 13 - SDRAM @ 3.3V, up to 153.33MHz.
• 3 - 3V66 @ 3.3V, 2x PCI MHz.
• 8 - PCI @3.3V.
• 1 - 48MHz, @3.3V fixed.
• 1 - 24MHz @ 3.3V
• 1 - REF @3.3V, 14.318MHz. Features:
• Up to 153.33MHz frequency support
• Support power management through PD#.
• Spread spectrum for EMI control (± 0.25%) center spread.
• Uses external 14.318MHz crystal
• FS pins for frequency select Key Specifications:
• CPU Output Jitter: <250ps
• IOAPIC Output Jitter: <500ps
• 48MHz, 3V66, PCI Output Jitter: <500ps
• Ref Output Jitter. <1000ps
• CPU Output Skew: <175ps
• PCI Output Skew: .
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | ICS9250-22 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 2 | ICS9250-23 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 3 | ICS9250-26 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 4 | ICS9250-27 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 5 | ICS9250-28 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 6 | ICS9250-28 |
Renesas |
Frequency Generator & Integrated Buffer |
|
| 7 | ICS9250-29 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 8 | ICS9250-08 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 9 | ICS9250-09 |
Integrated Circuit Systems |
Frequency Timing Generator |
|
| 10 | ICS9250-10 |
Integrated Circuit Systems |
Frequency Timing Generator |
|
| 11 | ICS9250-11 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|
| 12 | ICS9250-12 |
Integrated Circuit Systems |
Frequency Generator & Integrated Buffers |
|