參數(shù)資料
型號(hào)： C9815DY
英文描述： Up to 5A ULDO linear regulator
中文描述： CPU系統(tǒng)時(shí)鐘發(fā)生器| SSOP封裝| 56PIN |塑料
文件頁(yè)數(shù)： 9/19頁(yè)
文件大?。?/td> 328K
代理商： C9815DY
Low EMI Clock Generator for Intel
133MHz/2DIMM Chipset Systems
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
Document#: 38-07054 Rev. **
05/03/2001
Page 9 of 19
APPROVED PRODUCT
C9815
SMBUS Test Circuitry
Fig.7
Note: Buffer is 7407 with VCC @ 5.0 V
Spread Spectrum Clock Generation (SSCG)
Spread Spectrum is a modulation technique applied here for maximum efficiency in minimizing Electro-Magnetic
Interference radiation generated from repetitive digital signals mainly clocks. A clock accumulates EM energy at the
center frequency it is generating. Spread Spectrum distributes this energy over a small frequency bandwidth therefore
distributing an even amount of energy over a wider spectrum. This technique is achieved by modulating the clock either
down (Fig.8A) or around the center (Fig.8B) of its resting frequency by a certain percentage (which also determines the
energy distribution bandwidth). In this device, Spread Spectrum is enabled by setting SMBUS byte0, bit3 = 1. The
default of the device at power up keeps the Spread Spectrum disabled, it is therefore, important to have SMBUS
accessibility to turn-on the Spread Spectrum function. Once the Spread Spectrum is enabled, the spread bandwidth
option is selected by SST(0:2) in SMBUS byte 5, bits 5, 6 & 7 following tables 4A, and 4B below.
In Down Spread mode the center frequency is shifted down from its rested (non-spread) value by
of the total spread
%. (eg.: assuming the center frequency is 100MHz in non-spread mode; when down spread of
–
0.5% is enabled, the
center frequency shifts to 99.75MHz.).
2.2 K
Device under Test
SDATA
DATAIN
SCLK
DATAOUT
CLOCK
+ 5V
+ 5V
+ 5V
2.2 K
2.2 K
相關(guān)PDF資料
PDF描述
C9821GQ Up to 5A ULDO linear regulator
C9822EQ Up to 5A ULDO linear regulator
C9827JT Up to 5A ULDO linear regulator
C9827JY Up to 5A ULDO linear regulator
C9832HT Up to 5A ULDO linear regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
C981FFN-CTN 制造商:Thomas & Betts 功能描述:1" FSC 1-GANG WP BOX 18 CU IN-CAN
C981U103MYVDAA7317 功能描述:瓷片電容器 250volts 0.01uF 20% Y5V RoHS:否 制造商:Kemet 電容:0.01 uF 容差:20 % 電壓額定值:250 V 工作溫度范圍: 損耗因數(shù) DF: 端接類(lèi)型:Radial 產(chǎn)品:AC Line Rated Class X1/Y2 Capacitors
C981U103MYVDAAWL20 功能描述:10000pF 400VAC 陶瓷電容器 Y5V（F） 徑向，圓盤(pán) 0.591" 直徑（15.00mm） 制造商:kemet 系列:C900 包裝:散裝 零件狀態(tài):有效 電容:10000pF 容差:±20% 電壓 - 額定:400VAC 溫度系數(shù):Y5V（F） 安裝類(lèi)型:通孔 工作溫度:-40°C ~ 125°C 應(yīng)用:安全 等級(jí):X1，Y2 封裝/外殼:徑向，圓盤(pán) 大小/尺寸:0.591" 直徑（15.00mm） 高度 - 安裝（最大值）:- 厚度（最大值）:- 引線(xiàn)間距:0.394"（10.00mm） 特性:- 引線(xiàn)形式:直形 標(biāo)準(zhǔn)包裝:500
C981U103MYVDAAWL30 功能描述:瓷片電容器 250volts 0.01uF 20% Y5V RoHS:否 制造商:Kemet 電容:0.01 uF 容差:20 % 電壓額定值:400 VAC, 250 VAC 工作溫度范圍: 損耗因數(shù) DF: 端接類(lèi)型:Radial 產(chǎn)品:AC Line Rated Class X1/Y2 Capacitors
C981U103MYVDAAWL35 功能描述:瓷片電容器 250volts 0.01uF 20% Y5V RoHS:否 制造商:Kemet 電容:0.01 uF 容差:20 % 電壓額定值:250 V 工作溫度范圍: 損耗因數(shù) DF: 端接類(lèi)型:Radial 產(chǎn)品:AC Line Rated Class X1/Y2 Capacitors
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠(chǎng)商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*