Instruction/ maintenance manual of the product CY25818 Cypress
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S pread S pectrum Clock Generato r CY25818/19 Cypress Semiconductor Corpora tion • 198 Champion Cou rt • San Jose , CA 95134-1 709 • 408-943-2 600 Document #: 38-07362 Rev .
CY25818/19 Document #: 38-07362 Rev . *B Page 2 of 7 . Overvi ew The Cypress CY25818/1 9 products are S pread S pectrum Clock Generato r (SSCG) ICs used for the purpose of red ucing EMI found in today’s high-speed digital electronic systems.
CY25818/19 Document #: 38-07362 Rev . *B Page 3 of 7 3-Level Digit al Input s S0 digital input is designed to sense three logic l evels desig- nated as HIGH “1,” LOW “0 ,” and MIDDLE “M.” With this 3-Level d igit al input l ogic, th e 3-Level l ogic is a ble to detect three dif ferent log ic levels.
CY25818/19 Document #: 38-07362 Rev . *B Page 4 of 7 Characteristics Curves The following curves demonstrat e the characteristic behavio r of the CY25818 /19 when tested over a numb er of environ- mental and application specific parameters.
CY25818/19 Document #: 38-07362 Rev . *B Page 5 of 7 SSCG Profiles CY25818/19 SSCG products us e a non-linear “optimized” frequency profile as shown in Fig ure 6 and Figure 7 . The use of Cypress proprietary “optimiz ed” freq uency profile maintains flat energy distribution over the fundamental and higher order harmonics.
CY25818/19 Document #: 38-07362 Rev . *B Page 6 of 7 © Cypress Semi con duct or Cor po rati on , 20 06 . The information con t a in ed he re i n is su bject to change wi t hou t n oti ce. C ypr ess S em ic onduct or Corporation assumes no resp onsibility f or the u se of any circuitry o ther than circui try embodied i n a Cypress prod uct.
CY25818/19 Document #: 38-07362 Rev . *B Page 7 of 7 Document History Page Document Title: CY25818/19 Spread S pectrum Clock Genera tor Document Number: 38-07362 REV . ECN NO. Issu e Date Orig. of Change Description of Cha nge ** 1 12462 03/21/02 OXC New Data Sheet *A 122701 12/28/02 RBI Added power up requirements to maximum rating information.
An important point after buying a device Cypress CY25818 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cypress CY25818 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cypress CY25818 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cypress CY25818 you will learn all the available features of the product, as well as information on its operation. The information that you get Cypress CY25818 will certainly help you make a decision on the purchase.
If you already are a holder of Cypress CY25818, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cypress CY25818.
However, one of the most important roles played by the user manual is to help in solving problems with Cypress CY25818. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cypress CY25818 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
