Features
- Fully integrated PLL
- Eleven LVCMOS / LVTTL outputs, 7? typical output impedance
- LVCMOS / LVTTL REF_CLK input
- Output frequency range up to 180MHz at VDD = 3.3V ± 5%
- VCO range: 240MHz - 480MHz
- External feedback for "zero delay" clock regeneration
- Cycle-to-cycle jitter: 100ps (maximum)
- 3.3V supply voltage
- -40°C to 85°C ambient operating temperature
- Available in lead-free (RoHS 6) packages
87952I-147 - Block Diagram
Description
The 87952I-147 is a low voltage, low skew LVCMOS/LVTTL Clock Generator and a member of the family of High Performance Clock Solutions from IDT. With output frequencies up to 180MHz, the 87952I-147 is targeted for high performance clock applications. Along with a fully integrated PLL, the 87952I-147 contains frequency configurable outputs and an external feedback input for regenerating clocks with "zero delay". For test and system debug purposes, the nPLL_EN input allows the PLL to be bypassed. When HIGH, the MR/nOE input resets the internal dividers and forces the outputs to the high impedance state. The low impedance LVCMOS/LVTTL outputs of the 87952I- 147 are designed to drive terminated transmission lines. The effective fanout of each output can be doubled by utilizing the ability of each output to drive two series terminated transmission lines.
| Part Number | Status | Samples | Stock | Package | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Qty. per Reel (#) | Qty. per Carrier (#) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 87952AYI-147LF | Obsolete | N/A | In Stock | TQFP | 32# | Tray | 3 | 0 | 250# | Yes | e3 Sn | -40 to 85°C |
| 87952AYI-147LFT | Obsolete | N/A | Out of Stock | TQFP | 32# | Reel | 3 | 2000# | 0 | Yes | e3 Sn | -40 to 85°C |
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- Application NotePDF 187 KB R31AN0065EU0101 Rev.1.01 Nov 14, 2023
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- Application NotePDF 187 KB R31AN0065EU0101 Rev.1.01 Nov 14, 2023
- Application NotePDF 1.99 MB 7WDXRDKU4E7E-5-57242 Mar 01, 2022
- Application NotePDF 170 KB 7WDXRDKU4E7E-5-57318 May 13, 2014View More (9)
Application Notes & White Papers (9)
- End Of Life NoticePDF 550 KB 7WDXRDKU4E7E-5-58647 Mar 11, 2015
- End Of Life NoticePDF 547 KB 7WDXRDKU4E7E-5-58173 Jan 23, 2015
- Product Change NoticePDF 36 KB 7WDXRDKU4E7E-5-56946 Feb 16, 2014
- Product Change NoticePDF 472 KB 7WDXRDKU4E7E-5-55182 Mar 31, 2013
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