IDT5V49EE904NLGI8【PDF 1/29 页】IC PLL CLK GEN 200MHZ 32VFQFN

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DATASHEET

EEPROM PROGRAMMABLE CLOCK GENERATOR

IDT5V49EE904

IDT EEPROM PROGRAMMABLE CLOCK GENERATOR

IDT5V49EE904

REV P 092412

Description

The IDT5V49EE904 is a programmable clock generator

intended for high performance data-communications,

telecommunications, consumer, and networking

applications. There are four internal PLLs, each individually

programmable, allowing for four unique non-integer-related

frequencies. The frequencies are generated from a single

reference clock. The reference clock can come from one of

the two redundant clock inputs. Automatic or manual

switchover function allows any one of the redundant clocks

to be selected during normal operation.

The IDT5V49EE904 is in-system, programmable and can

be programmed through the use of I2C interface. An

internal EEPROM allows the user to save and restore the

configuration of the device without having to reprogram it on

power-up.

Each of the four PLLs has an 7-bit reference divider and a

12-bit feedback divider. This allows the user to generate

four unique non-integer-related frequencies. The PLL loop

bandwidth is programmable to allow the user to tailor the

PLL response to the application. For instance, the user can

tune the PLL parameters to minimize jitter generation or to

maximize jitter attenuation. Spread spectrum generation

and/or fractional divides are allowed on two of the PLLs.

There are a total of six 8-bit output dividers. The outputs are

connected to the PLLs via a switch matrix. The switch

matrix allows the user to route the PLL outputs to any

output bank. This feature can be used to simplify and

optimize the board layout. In addition, each output's slew

rate and enable/disable function is programmable.

Features

Four internal PLLs

Internal non-volatile EEPROM

Fast (400kHz) mode I2C serial interface

Input frequency range: 1 MHz to 200 MHz

Output frequency range: 4.9 kHz to 200 MHz

Reference crystal input with programmable linear load

capacitance

– Crystal frequency range: 8 MHz to 50 MHz

Four independently controlled VDDO (1.8V - 3.3V)

Each PLL has a 7-bit reference divider and a 12-bit

feedback-divider

8-bit output-divider blocks

Fractional division capability on one PLL

Two of the PLLs support spread spectrum generation

capability

I/O Standards:

– Outputs - 1.8 - 3.3 V LVTTL/ LVCMOS

– Inputs - 3.3 V LVTTL/ LVCMOS

Programmable slew rate control

Programmable loop bandwidth

Programmable output inversion to reduce bimodal jitter

Redundant clock inputs with auto and manual switchover

options

Individual output enable/disable

Power-down mode

3.3V core VDD

Available in VFQFPN package

-40 to +85 C Industrial Temp operation

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IDT5V50009DCG8 功能描述:IC PC CLOCK 8-SOIC RoHS:是类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器系列:- 标准包装:39 系列:- 类型:* PLL:带旁路输入:时钟输出:时钟电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是频率 - 最大:170MHz 除法器/乘法器:无/无电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:*

IDT5V50013DCG 功能描述:IC CLK GENERATOR LOW EMI 8-SOIC RoHS:是类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器系列:- 标准包装:2,000 系列:- 类型:PLL 时钟发生器 PLL:带旁路输入:LVCMOS，LVPECL 输出:LVCMOS 电路数:1 比率 - 输入:输出:2:11 差分 - 输入:输出:是/无频率 - 最大:240MHz 除法器/乘法器:是/无电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7）包装:带卷 (TR)

IDT5V50013DCG8 功能描述:IC CLK GENERATOR LOW EMI 8-SOIC RoHS:是类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器系列:- 标准包装:2,000 系列:- 类型:PLL 时钟发生器 PLL:带旁路输入:LVCMOS，LVPECL 输出:LVCMOS 电路数:1 比率 - 输入:输出:2:11 差分 - 输入:输出:是/无频率 - 最大:240MHz 除法器/乘法器:是/无电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7）包装:带卷 (TR)

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IDT5V50015DCG8 制造商:Integrated Device Technology Inc 功能描述:IC CLK GENERATOR LOW EMI 8SOIC

IDT5V50015PGG 功能描述:IC CLK GENERATOR LOW EMI 8TSSOP RoHS:是类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器系列:- 标准包装:2,000 系列:- 类型:PLL 时钟发生器 PLL:带旁路输入:LVCMOS，LVPECL 输出:LVCMOS 电路数:1 比率 - 输入:输出:2:11 差分 - 输入:输出:是/无频率 - 最大:240MHz 除法器/乘法器:是/无电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7）包装:带卷 (TR)

IDT5V50015PGG8 制造商:Integrated Device Technology Inc 功能描述:IC CLK GENERATOR LOW EMI 8TSSOP

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