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CDCR83ADBQR PDF预览

CDCR83ADBQR

更新时间: 2024-09-16 11:06:27
品牌 Logo 应用领域
德州仪器 - TI 时钟驱动光电二极管逻辑集成电路时钟驱动器时钟发生器
页数 文件大小 规格书
12页 199K
描述
Direct Rambus™ 时钟发生器 | DBQ | 24 | -40 to 85

CDCR83ADBQR 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SSOP
包装说明:SSOP,针数:24
Reach Compliance Code:compliantHTS代码:8542.39.00.01
Factory Lead Time:1 week风险等级:5.5
系列:CDC输入调节:STANDARD
JESD-30 代码:R-PDSO-G24JESD-609代码:e4
长度:8.65 mm逻辑集成电路类型:PLL BASED CLOCK DRIVER
最大I(ol):0.036 A湿度敏感等级:2
功能数量:1反相输出次数:1
端子数量:24实输出次数:1
最高工作温度:85 °C最低工作温度:-40 °C
输出特性:3-STATE封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH包装方法:TR
峰值回流温度(摄氏度):260最大电源电流(ICC):70 mA
认证状态:Not Qualified座面最大高度:1.75 mm
最大供电电压 (Vsup):3.465 V最小供电电压 (Vsup):3.135 V
标称供电电压 (Vsup):3.3 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mm

CDCR83ADBQR 数据手册

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CDCR83A  
www.ti.com  
SCAS811AUGUST 2005  
DIRECT RAMBUS™ CLOCK GENERATOR  
FEATURES  
DBQ PACKAGE  
(TOP VIEW)  
400-MHz Differential Clock Source for Direct  
Rambus™ Memory Systems for an 800-MHz  
Data Transfer Rate  
V
IR  
S0  
S1  
1
24  
DD  
REFCLK  
2
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
Fail-Safe Power Up Initialization  
V
P
V
DD  
O
3
DD  
Synchronizes the Clock Domains of the  
Rambus Channel With an External System or  
Processor Clock  
GNDP  
GNDI  
GNDO  
CLK  
4
5
PCLKM  
SYNCLKN  
GNDC  
NC  
6
Three Power Operating Modes to Minimize  
Power for Mobile and Other Power-Sensitive  
Applications  
CLKB  
GNDO  
7
8
V
C
V
DD  
O
9
DD  
Operates From a Single 3.3-V Supply and  
120 mW at 300 MHz (Typ)  
V
DD  
IPD  
MULT0  
MULT1  
S2  
10  
11  
12  
STOPB  
PWRDNB  
Packaged in a Shrink Small-Outline Package  
(DBQ)  
NC − No internal connection  
Supports Frequency Multipliers: 4, 6, 8, 16/3  
No External Components Required for PLL  
Supports Independent Channel Clocking  
Spread Spectrum Clocking Tracking  
Capability to Reduce EMI  
Designed for Use With TI's 133-MHz Clock  
Synthesizers CDC924 and CDC921  
Cycle-Cycle Jitter Is Less Than 50 ps at  
400 MHz  
Certified by Gigatest Labs to Exceed the  
Rambus DRCG Validation Requirement  
Supports Industrial Temperature Range of  
–40°C to 85°C  
DESCRIPTION  
The Direct Rambus clock generator (DRCG) provides the necessary clock signals to support a Direct Rambus  
memory subsystem. It includes signals to synchronize the Direct Rambus channel clock to an external system or  
processor clock. It is designed to support Direct Rambus memory on a desktop, workstation, server, and mobile  
PC motherboards. DRCG also provides an off-the-shelf solution for a broad range of Direct Rambus memory  
applications.  
The DRCG provides clock multiplication and phase alignment for a Direct Rambus memory subsystem to enable  
synchronous communication between the Rambus channel and ASIC clock domains. In a Direct Rambus  
memory subsystem, a system clock source provides the REFCLK and PCLK clock references to the DRCG and  
memory controller, respectively. The DRCG multiplies REFCLK and drives a high-speed BUSCLK to RDRAMs  
and the memory controller. Gear ratio logic in the memory controller divides the PCLK and BUSCLK frequencies  
by ratios M and N such that PCLKM = SYNCLKN, where SYNCLK = BUSCLK/4. The DRCG detects the phase  
difference between PCLKM and SYNCLKN and adjusts the phase of BUSCLK such that the skew between  
PCLKM and SYNCLKN is minimized. This allows data to be transferred across the SYNCLK/PCLK boundary  
without incurring additional latency.  
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.  
DIRECT RAMBUS, Rambus are trademarks of Rambus Inc.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2005, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  

CDCR83ADBQR 替代型号

型号 品牌 替代类型 描述 数据表
CDCR83ADBQ TI

类似代替

Direct Rambus™ Clock Generator 24-SSOP -40 to 85
CDCR83DBQ TI

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DIRECT RAMBUS CLOCK GENERATOR

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