 |
전자부품 데이터시트 검색엔진 |
|
|
전자부품 데이터시트 검색엔진 |
|
UPD17708 데이터시트(PDF) 285 Page - Renesas Technology Corp |
|
|
|||||||||||||||||||||||||||||
UPD17708 데이터시트(HTML) 285 Page - Renesas Technology Corp |
|
|
285 / 358 page  283 µPD17704, 17705, 17707, 17708, 17709 18.4 Using IF Counter The following sections 18.4.1 through 18.4.3 describe how to use the hardware of the IF counter, a program example, and count error. 18.4.1 Using hardware of IF counter Figure 18-9 shows the block diagram when the P1C0/FMIFC and P1C1/AMIFC pins. As shown in the figure, the IF counter uses an input pin with an AC amplifier, the DC component of the input signal must be cut with a capacitor. When the P1C0/FMIFC or P1C1/AMIFC pin is selected for the IF counter function, switch SW turns ON, and the voltage level on each pin reaches about 1/2VDD. If the voltage has not risen to a sufficient intermediate level at this time, the IF counter does not operate normally because the AC amplifier is not in the normal operating range. Therefore, make sure that a sufficient wait time elapses after each pin has been specified to be used for the IF counter until counting is started. Figure 18-9. IF Count Function Block Diagram of Each Pin To internal counter SW R C FMIFC AMIFC External frequecny |
|
링크 URL |
| ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크 투 데이터시트 | 링크교환 | 제조사별 검색 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 |
Korean ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
