 |
전자부품 데이터시트 검색엔진 |
|
|
전자부품 데이터시트 검색엔진 |
|
LC72151V 데이터시트(PDF) 8 Page - Sanyo Semicon Device |
|
||||||||||||||||||||||||||||||
LC72151V 데이터시트(HTML) 8 Page - Sanyo Semicon Device |
|
|
8 / 29 page  No. 6976-8/29 LC72151V Continued from preceding page. Pin No. Symbol Usage Function Pin circuit • Dedicated output pin • Latches OUT3 in the control data and outputs data from O-3 pin. • This pin goes open state at a power-on reset. 5 O-3 Output port • Op-amp for PLL active low-pass filter • AVSS is the analog system ground pin shared with low-pass filter Nch MOS transistor. • Voltage applied to AREF pin must be 1/2 that to VDD pin. Note: Power must be applied to AVDD before applied to VDD, and AVDD must be higher than or equal to VDD. 19 12 13 14 15 AIN1 AREF AVDD AVSS AOUT1 Op-amp for low-pass filter amp AREF AIN1 + – AOUT1 AVSS AVDD • PLL active low-pass filter Nch MOS transistor • Source of the transistor is connected to AVSS pin. Note: Connect AVSS pin to ground in use. 24 25 AIN2 AOUT2 Transistor for low-pass filter amp AVSS • PLL charge pump output When the frequency created by dividing the local oscillator signal frequency by N is higher than the reference frequency, a high level is output from the PD pin. When lower, a low level is output. The PD pin goes to the high-impedance state when the frequencies match. 21 23 20 PDM1 PDM2 PDS Charge pump output • PLL high-speed locking charge pump output When the high-speed locking mode is selected, signal pulses is output according to the frequency variation. This pin enters high- impedance state when the local oscillation frequency enters the set frequency range. 22 PDF PLL high-speed locking charge pump output • PLL high-speed locking active low-pass filter transmission gate input/output dual function pins Note: Connect AVSS pin to ground in use. 18 17 16 TGI1 TGI2 TGO PLL high-speed locking TG TGO TGI2 TGI1 • HCTR is selected by setting CTS1 in the control data to 1. Input frequency: 0.4 to 25 MHz The signal is input to a divide-by-2 circuit and the result is input to a general-purpose counter. This counter can also be used as an integrating counter. The counter value is output as the result of the count, MSB first, from the DO pin. There are four measurement periods: 4, 8, 32, and 64 ms. • When H/I-3 in the control data is set, this pin functions as an input port, and the value is output from the output pin DO. 10 HCTR/I-3 General-purpose counter • LCTR is selected by setting CTS1 in the control data to 1. • When the LCTR is selected as described above and CTS0 is set to 1: This pin enters the frequency measurement mode. Input frequency: 10 to 500 kHz The signal is directly transmitted to the general-purpose counter. • When CTS0 is set to 0 This pin enters period measurement mode. Input frequency: 1 Hz to 20 kHz Period can be measured either in single period or in double period. If double period measurement is selected, the frequency is 2 Hz to 40 kHz. The counter value is output as the result of the count, MSB first, from the DO pin. • When L/I-4 in the control data is set: This pin functions as an input port, the value is output from the output pin DO. 11 LCTR/I-4 General-purpose counter Continued on next page. |
유사한 부품 번호 - LC72151V |
|
유사한 설명 - LC72151V |
|
|
|
링크 URL |
| 개인정보취급방침 |
| ALLDATASHEET.CO.KR |
| ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 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
