|
BL6502 Datasheet, PDF (7/11 Pages) SHANGHAI BELLING CO., LTD. – BL6502 | |||
|
◁ |
BL6502
éææ¯è¡å¨åç¸åçµæµ
éæ ·çµè½è®¡éè¯ç
çæ³¢å¨ã
èå½çµåæçµæµä¸çä¸è·¯ç»è¿æ°åé«é滤波å¨åï¼å¦å»æçµæµéæ ·ä¿¡å·çç´æµå移项ã
è¿æ¶ä»
æä¸è·¯è¾å
¥æç´æµæåæ¶ï¼ä¹æ³çç»ææäºå¾å¤§çæ¹åï¼æ²¡æäºç´æµè¯¯å·®ï¼w é¢çå¤
çåéä¹åå°äºã
çµåééè¾å
¥
çµåééå
许æ大è¾å
¥å·®åçµå为±660mVï¼å
±æ¨¡çµå 100mVãç¶èï¼å
±æ¨¡çµå为 0V
æ¶æææ好ã
V1
+660mV
V2
æææææ积çµçµæ±660mV
æææææ模çµçµ100mV
V2P
+
V1
V2N
-
V2
-660mV
AGND
çµåééçå
¸åè¿æ¥çµè·¯å¦ä¸å¾æ示ï¼å
¶ä¸ï¼ç¬¬ä¸ç§æ¯ç¨ PTï¼çµåäºæå¨ï¼ï¼ç¬¬äºç§æ¯
ç¨çµé»ååç½ç»æä¾çµåä¿¡å·ã
RF
CT
CF
±660mV
V2P
+
RF
AGND
V2N
-
CF
ç«ç« é¶ç«
AGND
AGND
Ra
CF
Rb
AGND
ç«ç«
AGND
é¶ç«
Rv ±660mV
V2P
+
å
¶å
¶
AGND
RF
V2N
-
Ra >> RF
CF
Rb+Rv=RF
AGND
AGND
çµæµééè¾å
¥
çµæµééæ两个çµæµè¾å
¥ç«¯ï¼ç¶èï¼æ¯ä¸æ¶å»ï¼åªæä¸ä¸ªééç¨æ¥è½é计éãçµæµéé
å
许æ大è¾å
¥å·®åçµå为±660mVï¼å
±æ¨¡çµå 100mVãç¶èï¼å
±æ¨¡çµå为 0V æ¶æææ好ã
http://www.belling.com.cn
-7-
Total 11 Pages
8/9/2006
|
▷ |