CDCUA877

更新时间： 2024-11-09 03:29:03

品牌	Logo	应用领域
德州仪器 - TI		时钟驱动器
页数	文件大小	规格书
16页	579K
描述
1.8-V PHASE LOCK LOOP CLOCK DRIVER

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

CDCUA877 数据手册

CDCUA877

www.ti.com

SCAS769A–AUGUST 2006–REVISED JUNE 2007

1.8-V PHASE LOCK LOOP CLOCK DRIVER

FEATURES

•

Distributes One Differential Clock Input to Ten

Differential Outputs

•

1.8-V/1.9-V Phase Lock Loop Clock Driver for

Double Data Rate (DDR II) Applications

52-Ball μBGA (MicroStar Junior™ BGA,

0,65-mm pitch)

•

Spread Spectrum Clock Compatible

Operating Frequency: 125 MHz to 410 MHz

Application Frequency: 160 MHz to 410 MHz

Low Current Consumption: <200 mA Typ

Low Jitter (Cycle-Cycle): ±40 ps

Low Output Skew: 35 ps

External Feedback Pins (FBIN, FBIN) are Used

to Synchronize the Outputs to the Input

Clockst

•

Meets or Exceeds CUA877/CAU878

Specification PLL Standard for

PC2-3200/4300/5300/6400o

Stabilization Time <6 μs

Fail-Safe Inputs

DESCRIPTION

The CDCUA877 is a high-performance, low-jitter, low-skew, zero-delay buffer that distributes a differential clock

input pair (CK, CK) to ten differential pairs of clock outputs (Yn, Yn) and to one differential pair of feedback clock

outputs (FBOUT, FBOUT). The clock outputs are controlled by the input clocks (CK, CK), the feedback clocks

(FBIN, FBIN), the LVCMOS control pins (OE, OS), and the analog power input (AV_DD). When OE is low, the

clock outputs, except FBOUT/FBOUT, are disabled while the internal PLL continues to maintain its locked-in

frequency. OS (output select) is a program pin that must be tied to GND or V_DD. When OS is high, OE functions

as previously described. When OS and OE are both low, OE has no affect on Y7/Y7, they are free running.

When AV_DDis grounded, the PLL is turned off and bypassed for test purposes.

When both clock inputs (CK, CK) are logic low, the device enters in a low power mode. An input logic detection

circuit on the differential inputs, independent from input buffers, detects the logic low level and performs in a low

power state where all outputs, the feedback, and the PLL are off. When the clock inputs transition from being

logic low to being differential signals, the PLL turns back on, the inputs and the outputs are enabled, and the

PLL obtains phase lock between the feedback clock pair (FBIN, FBIN) and the clock input pair (CK, CK) within

the specified stabilization time.

The CDCUA877 is able to track spread spectrum clocking (SSC) for reduced EMI. This device operates from

–40°C to 85°C).

AVAILABLE OPTIONS

T_A

52-Ball BGA⁽¹⁾

–40°C to 85°C

CDCUA877ZQL

(1) For the most current package and ordering information, see the

Package Option Addendum at the end of this document, or see the

TI website at www.ti.com.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

MicroStar Junior is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...16

中文翻译

下载PDF

与CDCUA877相关器件

型号	品牌	获取价格	描述	数据表
CDCUA877_1	TI	获取价格	1.8-V PHASE LOCK LOOP CLOCK DRIVER
CDCUA877_V01	TI	获取价格	1.8-V PHASE LOCK LOOP CLOCK DRIVER
CDCUA877NMKR	TI	获取价格	1.8-V PHASE LOCK LOOP CLOCK DRIVER
CDCUA877NMKT	TI	获取价格	1.8-V PHASE LOCK LOOP CLOCK DRIVER
CDCUA877ZQL	TI	获取价格	1.8-V PHASE LOCK LOOP CLOCK DRIVER
CDCUA877ZQLR	TI	获取价格	1.8-V PHASE LOCK LOOP CLOCK DRIVER
CDCUA877ZQLT	TI	获取价格	1.8-V PHASE LOCK LOOP CLOCK DRIVER
CDCUN1208LP	TI	获取价格	400 MHz Low Power 2:8 Fan-Out Buffer
CDCUN1208LPRHBR	TI	获取价格	400 MHz Low Power 2:8 Fan-Out Buffer
CDCUN1208LPRHBT	TI	获取价格	400 MHz Low Power 2:8 Fan-Out Buffer

与CDCUA877相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

22
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

21
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

47
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

39

产品中心

服务支持

精选活动

关于我们

帮助中心

CDCUA877

CDCUA877 数据手册

与CDCUA877相关器件

与CDCUA877相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

CDCUA877

CDCUA877 数据手册

与CDCUA877相关器件

与CDCUA877相关文章

您还可以找

您在本页遇到什么问题？