位置:CDCVF855PWR > CDCVF855PWR详情

CDCVF855PWR中文资料

厂家型号

CDCVF855PWR

文件大小

316.01Kbytes

页面数量

15

功能描述

2.5-V PHASE-LOCKED-LOOP CLOCK DRIVER

时钟驱动器及分配 2.5V Ph Lock Loop DDR Clock Driver

数据手册

原厂下载下载地址一下载地址二到原厂下载

生产厂商

TI2

CDCVF855PWR数据手册规格书PDF详情

FEATURES

· Spread-Spectrum Clock Compatible

· Operating Frequency: 60 MHz to 220 MHz

· Low Jitter (Cycle-Cycle): ±60 ps (±40 ps at 200

MHz)

· Low Static Phase Offset: ±50 ps

· Low Jitter (Period): ±60 ps (±30 ps at 200 MHz)

· 1-to-4 Differential Clock Distribution (SSTL2)

· Best in Class for VOX = VDD/2 ±0.1 V

· Operates From Dual 2.6-V or 2.5-V Supplies

· Available in a 28-Pin TSSOP Package

· Consumes < 100-mA Quiescent Current

· External Feedback Pins (FBIN, FBIN) Are Used

to Synchronize the Outputs to the Input

Clocks

· Meets/Exceeds JEDEC Standard (JESD82-1)

For DDRI-200/266/333 Specification

· Meets/Exceeds Proposed DDRI-400

Specification (JESD82-1A)

· Enters Low-Power Mode When No CLK Input

Signal Is Applied or PWRDWN Is Low

APPLICATIONS

· DDR Memory Modules (DDR400/333/266/200)

· Zero-Delay Fan-Out Buffer

DESCRIPTION

The CDCVF855 is a high-performance, low-skew,

low-jitter, zero-delay buffer that distributes a

differential clock input pair (CLK, CLK) to 4

differential pairs of clock outputs (Y[0:3], Y[0:3]) and one differential pair of feedback clock outputs

(FBOUT, FBOUT). The clock outputs are controlled

by the clock inputs (CLK, CLK), the feedback clocks

(FBIN, FBIN), and the analog power input (AVDD).

When PWRDWN is high, the outputs switch in phase

and frequency with CLK. When PWRDWN is low, all

outputs are disabled to a high-impedance state

(3-state) and the PLL is shut down (low-power

mode). The device also enters this low-power mode

when the input frequency falls below a suggested

detection frequency that is below 20 MHz (typical 10

MHz). An input frequency-detection circuit detects

the low-frequency condition and, after applying a

>20-MHz input signal, this detection circuit turns the

PLL on and enables the outputs.

When AVDD is strapped low, the PLL is turned off

and bypassed for test purposes. The CDCVF855 is

also able to track spread-spectrum clocking for

reduced EMI.

Because the CDCVF855 is based on PLL circuitry, it

requires a stabilization time to achieve phase-lock of

the PLL. This stabilization time is required following

power up. The CDCVF855 is characterized for both

commercial and industrial temperature ranges.

CDCVF855PWR产品属性

  • 类型

    描述

  • 型号

    CDCVF855PWR

  • 功能描述

    时钟驱动器及分配 2.5V Ph Lock Loop DDR Clock Driver

  • RoHS

  • 制造商

    Micrel

  • 1

    4

  • 输出类型

    Differential

  • 最大输出频率

    4.2 GHz

  • 电源电压-最小

    5 V

  • 最大工作温度

    + 85 C

  • 封装/箱体

    SOIC-8

  • 封装

    Reel

更新时间:2025-10-4 14:14:00
供应商 型号 品牌 批号 封装 库存 备注 价格
TI/德州仪器
25+
TSSOP28
32360
TI/德州仪器全新特价CDCVF855PWR即刻询购立享优惠#长期有货
TI(德州仪器)
24+
TSSOP28
2317
只做原装,提供一站式配单服务,代工代料。BOM配单
TI/德州仪器
25+
原厂封装
10000
TI
24+
TSSOP28
5000
全现原装公司现货
TI
16+
TSSOP
10000
原装正品
Texas Instruments
24+
28-TSSOP
56200
一级代理/放心采购
TI(德州仪器)
2447
TSSOP-28
315000
一级代理专营品牌!原装正品,优势现货,长期排单到货
TI
25+
SSOP-28
2000
就找我吧!--邀您体验愉快问购元件!
TI(德州仪器)
2021+
TSSOP-28
499
TI/德州仪器
24+
TSSOP-28
9600
原装现货,优势供应,支持实单!