поискавой системы для электроныых деталей |
|
CDCE949-Q1 датащи(PDF) 10 Page - Texas Instruments |
|
|
CDCE949-Q1 датащи(HTML) 10 Page - Texas Instruments |
10 / 32 page CDCE949-Q1 SCAS891 – FEBRUARY 2010 www.ti.com APPLICATION INFORMATION Control Terminal Configuration The CDCE949 has three user-definable control terminals (S0, S1 and S2) which allow external control of device settings. They can be programmed to perform any of the following functions: • Spread-Spectrum Clocking selection: Spread-type and spread-amount selection • Frequency selection: Switching between any of two user-defined frequencies • Output-State selection: Output configuration and power-down control The user can predefine up to eight different control settings. Table 1 and Table 2 explain these settings. Table 1. Control Terminal Definition External Control-Bits PLL1 Setting PLL2 Setting PLL3 Setting PLL4 Setting Y1 Setting Control Function Table 2. PLLx Setting (can be selected for each PLL individual)(1) SSC Selection (Center/Down) SSCx [3-bits] Center Down 0 0 0 0% (off) 0% (off) 0 0 1 ±0.25% –0.25% 0 1 0 ±0.5% –0.5% 0 1 1 ±0.75% –0.75% 1 0 0 ±1.0% –1.0% 1 0 1 ±1.25% –1.25% 1 1 0 ±1.5% –1.5% 1 1 1 ±2.0% –2.0% FREQUENCY SELECTION(2) FSx FUNCTION 0 Frequency0 1 Frequency1 OUTPUT SELECTION(3) (Y2 ... Y9) YxYx FUNCTION 0 State0 1 State1 (1) Center/Down-Spread, Frequency0/1 and State0/1 are user-definable in PLLx Configuration Register; (2) Frequency0 and Frequency1 can be any frequency within the specified fVCO range. (3) State0/1 selection is valid for both outputs of the corresponding PLL module and can be power down, 3-state, low or active 10 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): CDCE949-Q1 |
Аналогичный номер детали - CDCE949-Q1 |
|
Аналогичное описание - CDCE949-Q1 |
|
|
ссылки URL |
Конфиденциальность |
ALLDATASHEETRU.COM |
Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |