Features
- Four LVPECL output pairs
- Crystal oscillator interface: 25MHz
- Output frequency: 100MHz
- PCI Express Gen 2 (5 Gb/s) Jitter compliant
- RMS phase jitter @ 100MHz (12kHz - 20MHz): 1.01ps (typical)
- I2C support with readback capabilities up to 400kHz
- Spread Spectrum for electromagnetic interference (EMI) reduction
- 3.3V operating supply mode
- -40°C to 85°C ambient operating temperature
- Available in lead-free (RoHS 6) package
843S304I-100 - Block Diagram
Description
The 843S304I-100 is a PLL-based clock generator specifically designed for low phase noise applications. This device generates a 100MHz differential LVPECL clock from a input reference of 25MHz. The input reference may be derived from an external source or by the addition of a 25MHz crystal to the on-chip crystal oscillator. An external reference is applied to the PCLK pins. The nominal output frequency of 100MHz may be margined by approximately ±5% by changing the M divider value via the I2C interface. The device offers spread spectrum clock output for reduced EMI applications. An I2C bus interface is used to enable or disable spread spectrum operation as well as set the amount of spread. The 843S304I-100 is available in a lead-free 32-Lead VFQFN package.
| Part Number | Status | Samples | Stock | Package | Lead Count (#) | Temp. Grade | Pb (Lead) Free | Carrier Type |
|---|---|---|---|---|---|---|---|---|
| 843S304BKI-100LF | Obsolete | N/A | Out of Stock | VFQFPN | 32# | I | Yes | Tray |
| 843S304BKI-100LFT | Obsolete | N/A | Out of Stock | VFQFPN | 32# | I | 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
- Product Change NoticePDF 728 KB May 13, 2022
- Product Change NoticePDF 983 KB Jun 25, 2019
- Product Change NoticePDF 583 KB 7WDXRDKU4E7E-5-61343 Dec 20, 2016
- Product Change NoticePDF 596 KB 7WDXRDKU4E7E-5-59884 Jan 28, 2016
- Product Change NoticePDF 544 KB 7WDXRDKU4E7E-5-59710 Nov 13, 2015
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- End Of Life NoticePDF 1.22 MB Sep 07, 2022
- End Of Life NoticePDF 1.15 MB Aug 15, 2022
- Product Change NoticePDF 728 KB May 13, 2022
- Product Change NoticePDF 983 KB Jun 25, 2019
- Product Change NoticePDF 583 KB 7WDXRDKU4E7E-5-61343 Dec 20, 2016View More (7)
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