ZL30282
6-Output PCIe Gen 1-4 Clock Generator
Overview
The ZL30282 is a high-performance PCIe Gen 1-4 clock generator. From a 25MHz crystal or CMOS input these devices generate 100 MHZ in four pre-programmed output configurations immediately on power-up to 6 differential outputs. The devices have industry-leading output jitter of 160fs RMS (12kHz to 20MHz).White Paper: Spread Spectrum Clocking
White Paper: PCI Express Refclk Jitter Compliance
Applications/Uses
- PCIe Gen1 to Gen4 clock generation for PCIe storage systems, riser cards, JBOF, etc.
Key Features
- 50MHz crystal or CMOS input
- Generates PCIe Gen1 to Gen4 output clocks
- Spread-spectrum clocks (SSC) and regular clocks at the same time (configs 5-8)
- Output jitter <0.3ps rms 12kHz-20MHz typical for non-spread-spectrum outputs
- Up to 6 output clocks with 8 default configurations selected by hardware pins at reset:
- (Configs 0-3 no SSC, Configs4-7 SSC for OC3-6)
- Config0/4: OC1 100MHz HCSL, OC2_P 25MHz LVCMOS, OC3/4/5 unused, OC6 100MHz HCSL
- Config1/5: OC1 100MHz HCSL, OC2_P 25MHz LVCMOS, OC3/4/5/6 100MHz HCSL
- Config2/6: OC1 100MHz HCSL, OC2_P 75MHz LVCMOS, OC3/4/5/6 100MHz HCSL
- Config3/7: OC1/2 100MHz HCSL, OC3/4/5/6 100MHz HCSL
- Per-output controls (using SPI or I2C interface)
- Per-output enable/disable and glitchless start/stop (stop high or low)
- Precise output alignment circuitry and peroutput phase adjustment
- Spread-spectrum enable/disable for DIV2
- Core supply voltage options: 2.5V only, 3.3V only, 1.8V+2.5V or 1.8V+3.3V
General Features
- SPI or I 2C processor Interface
- Space-saving 8x8mm QFN56 (0.5mm pitch)
Resources
Packaging Information
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Ordering
Clock Generator 50MHz 6-OUT 56-Pin QFN T/R
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Microchip Technology Inc. | .. | .. | .. | .. | Buy Now |
| DigiKey | ZL30282LDF1-ND | 2700 | Tape & Reel | No Stock |
Clock Generator 50MHz 6-OUT 56-Pin QFN Tray
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Microchip Technology Inc. | .. | .. | .. | .. | Buy Now |
| DigiKey | ZL30282LDG1-ND | 260 | Tray | No Stock |
