Features
- Features/Benefits
- CPU, ATIG, SB_SRC, and SRC outputs are independently programmable for frequency
- Spread Spectrum for EMI reduction
- Outputs may be disabled via SMBus
- External crystal load capacitors for maximum frequency accuracy
- Meets PCIEX Gen 2 specifications
- Meets 30kHz to 33kHz SRC modulation rate specification for USB 3.0
- Key Specifications
- 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, and ATIG clocks
9LPRS477 - Block Diagram
Description
The 9LPRS477 is a main clock synthesizer chip that provides all clocks required for ATI RD7xx-based systems using AMD processors. An SMBus interface allows full control of the device.
| Part Number | Status | Samples | Stock | RoHS | Package | Lead Count (#) | Temp. Grade | Pb (Lead) Free | Carrier Type |
|---|---|---|---|---|---|---|---|---|---|
| 9LPRS477CKLF | Obsolete | N/A | Out of Stock | Contact | VFQFPN | 64# | C | Yes | Tray |
| 9LPRS477CKLFT | Obsolete | N/A | Out of Stock | Contact | VFQFPN | 64# | C | Yes | Reel |
| 9LPRS477DKLF | Obsolete | N/A | In Stock | RoHS:EN RoHS:JA | VFQFPN | 64# | C | Yes | Tray |
| 9LPRS477DKLFT | Obsolete | N/A | Out of Stock | Contact | VFQFPN | 64# | C | Yes | Reel |
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- End Of Life NoticePDF 1.22 MB Sep 07, 2022
- End Of Life NoticePDF 1.15 MB Aug 15, 2022
- End Of Life NoticePDF 938 KB Feb 28, 2022
- End Of Life NoticePDF 909 KB Jan 20, 2022
- Product Change NoticePDF 983 KB Jun 25, 2019
- Product Change NoticePDF 583 KB 7WDXRDKU4E7E-5-61343 Dec 20, 2016
- Product Change NoticePDF 95 KB 7WDXRDKU4E7E-5-59609 Oct 22, 2015
- Product Change NoticePDF 50 KB 7WDXRDKU4E7E-5-59245 Jul 21, 2015
- Product Change NoticePDF 43 KB 7WDXRDKU4E7E-5-56945 Feb 16, 2014
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- End Of Life NoticePDF 1.22 MB Sep 07, 2022
- End Of Life NoticePDF 1.15 MB Aug 15, 2022
- End Of Life NoticePDF 938 KB Feb 28, 2022
- End Of Life NoticePDF 909 KB Jan 20, 2022
- Product Change NoticePDF 983 KB Jun 25, 2019View More (9)
Product Notices (PCN, EOL, etc) (9)
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