Datasheet > MAX24305

MAX24305

更新时间： 2024-11-16 14:51:51

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
123页	1671K
描述
The MAX24305 is an flexible, high-performance timing and clock synthesizer ICs that include a DPLL

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MAX24305 数据手册

Data Sheet

April 2019

MAX24305, MAX24310

5- or 10-Output Any-to-Any Timing ICs

with Internal EEPROM

General Description

Features



Input Clocks

The MAX24305 and MAX24310 are flexible, high-

performance timing and clock synthesizer ICs that

include a DPLL and two independent APLLs. When

locked to one of two input clock signals, the device

performs any-to-any frequency conversion. From any

input clock frequency 1Hz to 750MHz the device can

produce frequency-locked APLL output frequencies up

to 750MHz and as many as 10 output clock signals that

are integer divisors of the APLL frequencies. Input jitter

can be attenuated by an internal low-bandwidth DPLL.

The DPLL also provides truly hitless switching between

input clocks and a high-resolution holdover capability.

Input switching can be manual or automatic. Using only

a low-cost crystal or oscillator, the device can also serve

as a frequency synthesizer IC. Output jitter is typically

0.18 to 0.3ps RMS for an APLL-only integer multiply

and 0.25 to 0.4ps RMS for APLL-only fractional multiply

or DPLL+APLL operation.



One Crystal Input

Two Differential or CMOS/TTL Inputs

Differential to 750MHz, CMOS/TTL to 160MHz

Continuous Input Clock Quality Monitoring

Automatic or Manual Clock Selection

Hitless Reference Switching on Loss of Input



Low-Bandwidth DPLL



Programmable Bandwidth, 0.5mHz to 400Hz

Attenuates Jitter up to Several UI

Free-Run or Holdover on Loss of All Inputs

Hitless Reference Switching on Loss of Input

Manual Phase Adjustment

Two APLLs Plus 5 or 10 Output Clocks

For telecom systems, the device has all required

features and functions to serve as a central timing

function or as a line card timing IC. With a suitable

oscillator the device meets the requirements of Stratum

2, 3E, 3, 4E, and 4; G.812 Types I to IV; G.813; and

G.8262.



APLLs Perform High Resolution Fractional-N

Clock Multiplication



Any Output Frequency from <1Hz to 750MHz

Each Output Has an Independent Divider

Output Jitter Typically 0.18 to 0.3ps RMS for

APLL-Only Integer Multiply and 0.25 to 0.4ps

RMS for Other Modes (12kHz to 20MHz)

Applications

Frequency Conversion and Synthesis Applications in a

Wide Variety of Equipment Types



Outputs are CML or 2xCMOS, Can Interface to

LVDS, LVPECL, HSTL, SSTL and HCSL

Telecom Timing Cards or Line Cards for SONET/SDH,

Synchronous Ethernet and/or OTN

CMOS Output Voltage from 1.5V to 3.3V



General Features



Suitable Line Card IC or Timing Card IC for

Stratum 2/3E/3/4E/4, SMC, SEC/EEC, or SSU

Ordering Information

TEMP

PIN-

PART

OUTPUTS

Automatic Self-Configuration at Power-Up

from Internal EEPROM Memory

RANGE

PACKAGE

MAX24305EXG2

MAX24310EXG2

-40 to +85

81-CSBGA

Uses External Crystal, Oscillator or Clock

Signal As Master Clock

Suffix 2 denotes a lead(Pb)-free/RoHS-compliant package.

Internal Compensation for Local Oscillator

Frequency Error

Block Diagram appears on page 6.



SPI Processor Interface

1.8V + 3.3V Operation (5V Tolerant)

-40C to +85C Operating Temp. Range

10mm x 10mm CSBGA Package

12 3 4 5 6 7...123

中文翻译

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与MAX24305相关器件

型号	品牌	获取价格	描述	数据表
MAX24305EXG+	MICROSEMI	获取价格	Support Circuit, 1-Func, PBGA81, 10 X 10 MM, ROHS COMPLIANT, CSBGA-81
MAX2430CSE	MAXIM	获取价格	Analog IC
MAX2430EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX2430
MAX2430EVKIT-PWRQSOP	MAXIM	获取价格	Evaluation Kits
MAX2430EVKIT-SO	MAXIM	获取价格	Evaluation Kits
MAX2430IEE	MAXIM	获取价格	Low-Voltage, Silicon RF Power Amplifier/Predriver
MAX2430ISE	MAXIM	获取价格	Low-Voltage, Silicon RF Power Amplifier/Predriver
MAX2430ISE-T	MAXIM	获取价格	Wide Band Medium Power Amplifier, 800MHz Min, 1000MHz Max, 1 Func, BIPolar, NARROW SO, 16
MAX24310	MICROCHIP	获取价格	The MAX24310 is an flexible, high-performance timing and clock synthesizer ICs that includ
MAX24310EXG+	MICROSEMI	获取价格	Support Circuit, 1-Func, PBGA81, 10 X 10 MM, ROHS COMPLIANT, CSBGA-81

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