ZL30282 Series

6-Output PCIe Clock Generator

Catalog

6-Output PCIe Clock Generator

Part	Type	Differential - Input:Output	Frequency - Max [Max]	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Ratio - Input:Output [custom]	Ratio - Input:Output [custom]	Number of Circuits	PLL	Divider/Multiplier	Output	Voltage - Supply [Min]	Voltage - Supply [Max]	Input	Mounting Type	Supplier Device Package
Microchip Technology ZL30282LDF1	Clock Generator	No/Yes	250 MHz	56-VFQFN Exposed Pad	85 °C	-40 °C	6	2	1		Yes/No	HCSL, LVCMOS	1.71 V, 2.375 V, 3.135 V	1.89 V, 2.625 V, 3.465 V	Crystal, LVCMOS	Surface Mount	56-QFN (8x8)
Microchip Technology ZL30282LDG1

Catalog

6-Output PCIe Clock Generator

Key Features

• * 50MHz crystal or CMOS input

• * Generates PCIe 1, 2, 3, 4, 5 compliant 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 control via SPI or I2C interface

• * Precise output alignment circuitry and per-output phase adjustment

• * Per-output enable/disable and glitch-less start/stop (stop high or low)

• * 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

• * Space-saving 8x8mm QFN56 (0.5mm pitch)

Description

The ZL30282 is a high-performance PCIe Gen 1-4 clock generator. From a 50MHz 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).