 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
CS209AYDR8 Datasheet(PDF) 4 Page - Cherry Semiconductor Corporation |
|
||||||||||||||||||||||||||||||
CS209AYDR8 Datasheet(HTML) 4 Page - Cherry Semiconductor Corporation |
|
|
4 / 6 page  4 where R is the effective resistance of the tank. The resis- tance component of the inductor consists primarily of core losses and Òskin effectÓ or AC resistance. The resonant capacitor should be selected to resonate with the inductor within the frequency range recommended in order to yield the highest Q. The capacitor type should be selected to have low ESR: multilayer ceramic for example. Detection distances vary for different metals. Following are different detection distances for some selected metals and metal objects relative to one particular circuit set-up: Commonly encountered metals: ¥ Stainless steel 0.101" ¥ Carbon steel 0.125" ¥ Copper 0.044" ¥ Aluminum 0.053" ¥ Brass 0.052" Coins: ¥ US Quarter 0.055" ¥ Canadian Quarter 0.113" ¥ 1 German Mark 0.090" ¥ 1 Pound Sterling 0.080" ¥ 100 Japanese Yen 0.093" ¥ 100 Italian Lira 0.133" 12 oz. soda can: 0.087" Principle of Operation: continued Note that the above is only a comparison among different metals and no attempt was made to achieve the greatest detection distance. A different type of application involves, for example, detecting the teeth of a rotating gear. For these applica- tions the capacitor on DEMOD should not be selected too small (not below 1000pF) where the ripple becomes too large and not too large (not greater than 0.01µF) that the response time is too slow. Figure 1 for example shows the capacitor ripple only and Figure 2 shows the entire capaci- tor voltage and the output pulses for an 8-tooth gear rotat- ing at about 2400 rpm using a 2200pF capacitor on the DEMOD pin. Because the output stages go into hard saturation, a time interval is required to remove the stored base charge resulting in both outputs being low for approximately 3µs (see Output Switching Delay vs. Temperature graph). If more information is required about output switching characteristics please consult the factory. Figure 1. Capacitor ripple. Figure 2. Output pulse for an 8 tooth gear. VOUT 1 VDEMOD VTANK VDEMOD |
Similar Part No. - CS209AYDR8 |
|
Similar Description - CS209AYDR8 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
