Datasheet > 843204I-01

843204I-01

更新时间： 2024-11-04 01:14:43

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
14页	186K
描述
FemtoClockÂ® Crystal-to-3.3V LVPECL Frequency Synthesizer

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中文翻译

获取价格

数据手册

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843204I-01 数据手册

FemtoClock^®Crystal-to-3.3V LVPECL

Frequency Synthesizer

843204I-01

DATA SHEET

GENERAL DESCRIPTION

FEATURES

The 843204I-01 is a 4 output LVPECL Synthe-sizer optimized

to generate Gigabit Ethernet and SONET reference clock

• Four 3.3V LVPECL outputs

• Selectable crystal oscillator interface or clock inputs

frequencies and is a member of the HiPerClocks family

of high performance clock solutions from IDT. Using

a 19.44MHz and 25MHz, 18pF parallel resonant crystal,

155.52MHz and 156.25MHz frequencies can be generated.

• Supports the following output frequencies: 155.52MHz

and 156.25MHz

• VCO range: 560MHz - 680MHz

The 843204I-01 uses IDT’s FemtoClock low phase noise VCO

technology and can achieve 1ps or lower typical RMS phase jitter.

• RMS phase jitter @ 155.52MHz, using a 19.44MHz crystal

(12kHz - 13MHz): 0.6ps (typical)

• RMS phase jitter @ 156.25MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.7ps (typical)

• Full 3.3V supply mode

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

• Available in lead-free (RoHS 6) package

• For functional replacement part us 8T49N285

BLOCK DIAGRAM

PIN ASSIGNMENT

Pullup

nPLL_BYPASS_A

nQA1

QA1

nQA0

QA0

IN_SELA

CLK0

XTAL_IN0

XTAL_OUT0

V^EE

OEA0

OEA1

V^CC

VCCA

nPLL_BYPASS_B

SELB0

V^EE

OEB0

OEB1

V^CC

SELB1

V^CCA

Pullup

IN_SELA

Pulldown

CLK0

SELA0

V^CCO_A

SELA1

SELA0

nPLL_BYPASS_A

OEA0

OEA1

25MHz

XTAL_IN0

QA0

÷4

PLL

OSC

nQA0

XTAL_OUT0

156.25MHz

SELA1

625MHz

XTAL_IN1

XTAL_OUT1

CLK1

QA1

Pullup

nPLL_BYPASS_B

IN_SELB

nQA1

nCLK1

IN_SELB

V^CCO_B

Pulldown

CLK1

SELB0

Pullup/pulldown

QB0

nQB0

QB1

nQB1

nCLK1

OEB0

OEB1

QB0

19.44MHz

XTAL_IN1

nQB0

OSC

÷4

PLL

843204I-01

XTAL_OUT1

SELB0

48 Lead TSSOP

6.1mm x 12.5mm x 0.925mm

package body

155.52MHz

622.08MHz

QB1

G Package

Top View

nQB1

843204I-01 REVISION A 11/5/15

12 3 4 5 6 7...14

中文翻译

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