Datasheet > LCK4801

LCK4801

更新时间： 2024-11-07 22:28:35

品牌	Logo	应用领域
杰尔 - AGERE		晶体外围集成电路时钟
页数	文件大小	规格书
10页	153K
描述
Low-Voltage HSTL Differential Clock

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LCK4801 数据手册

Preliminary Data Sheet

July 2001

LCK4801

Low-Voltage HSTL Differential Clock

General

Features

The LCK4801 is a low-voltage, 3.3 V HSTL

■ Two fully selectable clock inputs.

differential clock synthesizer. The LCK4801 supports

two differential HSTL output pairs with frequencies

from 336 MHz to 1 GHz. The clock is designed to

support single and multiple processor systems that

require HSTL differential inputs. The LCK4801

contains a fully integrated PLL (phase-locked loop)

which multiplies the HSTL_CLK or PECL_CLK input

frequency to match individual processor clock

frequencies. The PLL can be bypassed so that the

PCLK outputs are fed from the HSTL_CLK or

PECL_CLK input for test purposes. All outputs are

powered from a 2 V external supply to reduce on-

chip power consumption. All outputs are HSTL. The

PLL can operate in the internal feedback mode, or in

the external feedback mode for board level

■ Fully integrated PLL.

■ 336 MHz to 1 GHz output frequencies.

■ HSTL outputs.

■ HSTL and LVPECL reference clocks.

■ 32-pin TQFP package.

debugging applications.

Description

PCLK0_EN (PULL-UP)

PCLK1_EN (PULL-UP)

TESTM (PULL-UP)

PLLREF_EN (PULL-UP)

REF_SEL (PULL-UP)

HSTL_CLK (PULL-UP)

PCLK0

HSTL_CLK (PULL-UP)

PLL

PCLK0 (HSTL)

PECL_CLK (PULL-UP)

PCLK1

PCLK1 (HSTL)

(PULL-UP)

EXTFB_IN (HSTL)

(PULL-DOWN)

EXTFB_OUT

EXTFB_EN (PULL-UP)

EXTFB_OUT (HSTL)

DECODE

SEL[4:0] (PULL-UP)

RESET (PULL-UP)

PLL_BYPASS (PULL-UP)

2274.a (F)

Figure 1. LCK4801 Logic Diagram

12 3 4 5 6 7...10

中文翻译

下载PDF

与LCK4801相关器件

型号	品牌	获取价格	描述	数据表
LCK4802	AGERE	获取价格	Low-Voltage PECL Differential Clock
LCK4950	AGERE	获取价格	Low-Voltage PLL Clock Driver
LCK4953	AGERE	获取价格	Low-Voltage PLL Clock Driver
LCK4972	AGERE	获取价格	Low-Voltage PLL Clock Driver
LCK4973	AGERE	获取价格	Low-Voltage PLL Clock Driver
LCK4993	AGERE	获取价格	Low-Voltage PLL Clock Drivers
LCK4993KB-DB	AGERE	获取价格	Low-Voltage PLL Clock Drivers
LCK4993KB-DT	AGERE	获取价格	Low-Voltage PLL Clock Drivers
LCK4993YH-DB	AGERE	获取价格	Low-Voltage PLL Clock Drivers
LCK4993YH-DT	AGERE	获取价格	Low-Voltage PLL Clock Drivers