Datasheet > 813078BYILF

813078BYILF

更新时间： 2024-11-11 06:32:43

品牌	Logo	应用领域
艾迪悌 - IDT		石英晶振压控振荡器无线
页数	文件大小	规格书
26页	981K
描述
FEMTOCLOCKS™ VCXO-PLL FREQUENCY GENERATOR FOR WIRELESS INFRASTRUCTURE EQUIPMENT

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813078BYILF 数据手册

FEMTOCLOCKS™ VCXO-PLL FREQUENCY GENERATOR

FOR WIRELESS INFRASTRUCTURE EQUIPMENT

ICS813078I

General Description

Features

The ICS813078I is a member of the HiperClocks

• Nine outputs, organized in three independent output banks with

differential LVPECL and single-ended outputs

family of high performance clock solutions from IDT.

The ICS813078I a PLL based synchronous clock

solution that is optimized for wireless infrastructure

equipment where frequency translation and jitter

HiPerClockS™

• One differential input clock can accept the following differential

input levels: LVDS, LVPECL, LVHSTL

• One single-ended clock input

attenuation is needed.

• Frequency generation optimized for wireless infrastructure

• Attenuates the phase jitter of the input clock signal by using

The device contains two internal PLL stages that are cascaded in

series. The first PLL stage attenuates the reference clock jitter by

using an internal or external VCXO circuit. The internal VCXO

requires the connection of an external inexpensive pullable crystal

(XTAL) to the ICS813078I. This first PLL stage (VCXO PLL) uses

external passive loop filter components which are used to optimize

the PLL loop bandwidth and damping characteristics for the given

application. The output of the first stage VCXO PLL is a stable and

jitter-tolerant 30.72MHz reference input for the second PLL stage.

The second PLL stage provides frequency translation by

multiplying the output of the first stage up to 491.52MHz or

614.4MHz. The low phase noise characteristics of the VCXO-PLL

clock signal is maintained by the internal FemtoClock™PLL, which

requires no external components or complex programming. Two

independently configurable frequency dividers translate the

internal VCO signal to the desired output frequencies. All

low-cost pullable fundamental mode crystal (XTAL)

• Internal Femtoclock frequency multiplier stage eliminates the

need for an expensive external high frequency VCXO

• LVCMOS levels for all control I/O

• RMS phase jitter @ 122.88MHz, using a 30.72MHz crystal

(12kHz to 20MHz): 1.1ps rms (typical)

• RMS phase jitter @ 61.44MHz, using a 30.72MHz crystal

(12kHz to 20MHz): 0.97ps rms (typical)

• VCXO PLL bandwidth can be optimized for jitter attenuation and

reference frequency tracking using external loop filter

components

• PLL fast-lock control

• PLL lock detect output

• Absolute pull range is +/-50 ppm

• Full 3.3V supply voltage

frequency translation ratios are set by device configuration pins.

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

• Available in lead-free (RoHS 6) package

Supported input reference clock frequencies:

10MHz, 12.8MHz, 15MHz, 15.36MHz, 20MHz, 30.72MHz,

61.44MHz, and 122.88MHz

Supported output clock frequencies:

30.72MHz, 38.4MHz, 61.44MHz, 76.8MHz, 122.88MHz,

153.6MHz, 245.76MHz, 491.52MHz, and 614.4MHz

Pin Assignment

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

LF1

LF0

ISET

V_CCO

nQA0

QA0

FLM

V_CC

V_EE

nQA1

64-Lead TQFP, E-Pad

10mm x 10mm x 1mm

package body

CLK1

REF_SEL

nMR

QA1

V_CCO

nQA2

Y Package

CLK0

38 QA2

V_CC

nCLK0

V_EE

nQB0

NA1

NA0

NB1

QB0

V_CCO

17 18 19 20 21

23 24 25 26 27 28 29 30 31 32

FEMTOCLOCKS™ VCXO-PLL FREQUENCY GENERATOR

ICS813078BYI REV. A OCTOBER 6, 2008

12 3 4 5 6 7...26

中文翻译

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与813078BYILF相关器件

型号	品牌	获取价格	描述	数据表
813078BYILFT	IDT	获取价格	FEMTOCLOCKS™ VCXO-PLL FREQUENCY GENERATOR FOR
8130-832-A	RAF	获取价格	ROUND INTERNAL THREAD HANDLE
8130-AB3-D-B	UTC	获取价格	POWER RESET IC
8130-AB3-D-K	UTC	获取价格	POWER RESET IC
8130-AB3-D-R	UTC	获取价格	POWER RESET IC
8130-AE3-5-R	UTC	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, SOT-23, 3 PIN
8130-AE3-D-B	UTC	获取价格	POWER RESET IC
8130-AE3-D-K	UTC	获取价格	POWER RESET IC
8130-AE3-D-R	UTC	获取价格	POWER RESET IC
8130-AF5-B-R	UTC	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO5, SOT-25, 5 PIN

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