Datasheet > 8V49N231NLGI8

8V49N231NLGI8

更新时间： 2024-09-24 01:10:43

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
31页	677K
描述
Clock Generator for Broadcom Processor

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8V49N231NLGI8 数据手册

Clock Generator for Broadcom Processor

8V49N231

Datasheet

General Description

Features

The 8V49N231 is a high-performance PLL-based clock generator

designed to interface with Broadcom XLP2xxx processors. The

8V49N231 has one 25MHz crystal input to generate output

frequencies to support XLP Core/DDR3, USB, SGMII/XAUI and

PCIe reference clocks in a single chip. The 8V49N231 low jitter VCO

easily meets PCI Express Gen 1, 2 and 3 requirements.

• Fourth Generation FemtoClock^®NG PLL technology

• Eleven outputs to support 133.33MHz/66.66MHz, 100MHz,

125MHz for core/DDR3, USB, SGMII/XAUI and PCIe reference

clocks

• Two 1.8V LVCMOS clock outputs for core/DDR3 at 133.33MHz or

Excellent phase noise performance is maintained with IDT’s Fourth

Generation FemtoClock^®NG technology.

66.66MHz

• One LVDS clock output for USB at 100MHz

• Three LVDS clock outputs for SGMII/XAUI at 125MHz

• Five HCSL clock outputs for PCIe at 100MHz

• Crystal oscillator interface designed for 25MHz, parallel

resonant crystal

• PCI Express Gen 1 (2.5Gb/s), Gen 2 (5Gb/s) and Gen 3 (8Gb/s)

jitter compliant

• Power supply modes:

Core / Output

3.3V / 3.3V (HCSL, LVDS outputs)

3.3V / 1.8V (LVCMOS outputs only)

• Lead-free (RoHS 6) packaging

• -40°C to 85°C ambient operating temperature

Pin Assignment

42 41 40 39 38 37 36 35 34 33 32 31 30 29

V_{DDO_C}

nQC4

QC4

GND

OE_1

OE_2

OE_3

OE_4

GND

nQC3

QC3

V_{SSO_C}

nQC2

QC2

V_DD

8V49N231

FSEL

BYPASS

V_{DDO_C}

nQC1

QC1

QA1

nQC0

QC0

QA0

V_{DDO_A}

GND

V_{DDO_C}

2 3 4 5 6 7 8 9 10 11 12 13 14

56-Lead, 8mm x 8mm VFQFN

Revison C, November 2, 2016

12 3 4 5 6 7...31

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