 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
LMV321M5 датащи(PDF) 21 Page - National Semiconductor (TI) |
|
|
|
|||||||||||||||||||||||||||||
LMV321M5 датащи(HTML) 21 Page - National Semiconductor (TI) |
|
|
21 / 45 page  LMV321-N, LMV321-N-Q1, LMV358-N, LMV358-N-Q1 LMV324-N, LMV324-N-Q1 www.ti.com SNOS012I – AUGUST 2000 – REVISED FEBRUARY 2013 From Equation 2 and Equation 9, we obtain (10) (11) The values of C1 and C2 are normally close to or equal to (12) As a design example: Require: ALP = 2, Q = 1, fc = 1 kHz Start by selecting C1 and C2. Choose a standard value that is close to (13) (14) From Equation 7 Equation 8 Equation 10 Equation 11, R1= 1Ω (15) R2= 1Ω (16) R3= 4Ω (17) R4= 4Ω (18) The above resistor values are normalized values with ωn = 1 rad/s and C1 = C2 = Cn = 1F. To scale the normalized cutoff frequency and resistances to the real values, two scaling factors are introduced, frequency scaling factor (kf) and impedance scaling factor (km). (19) Scaled values: R2 = R1 = 15.9 kΩ (20) R3 = R4 = 63.6 kΩ (21) C1 = C2 = 0.01 µF (22) An adjustment to the scaling may be made in order to have realistic values for resistors and capacitors. The actual value used for each component is shown in the circuit. 2nd-Order High Pass Filter A 2nd-order high pass filter can be built by simply interchanging those frequency selective components (R1, R2, C1, C2) in the Sallen-Key 2nd-order active low pass filter. As shown in Figure 62, resistors become capacitors, and capacitors become resistors. The resulted high pass filter has the same corner frequency and the same maximum gain as the previous 2nd-order low pass filter if the same components are chosen. Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 21 Product Folder Links: LMV321-N LMV321-N-Q1 LMV358-N LMV358-N-Q1 LMV324-N LMV324-N-Q1 |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | 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 |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
