Os motores de busca de Datasheet de Componentes eletrônicos |
|
LM1818N Folha de dados(PDF) 8 Page - National Semiconductor (TI) |
|
|
LM1818N Folha de dados(HTML) 8 Page - National Semiconductor (TI) |
8 / 14 page Application Hints (Continued) TLH7894 – 9 FIGURE 7 Auto Level-Meter Circuit METER DRIVINGMOTIONAL PEAK LEVEL RESPONSE (Figure 7) The meter drive output (pin 8) is capable of supplying 1 – 2 mA at a filtered DC voltage that is typically equal to 10 times the RMS value of the signal applied to the ALC-meter drive input (pin 4) The RC network connected to pin 7 of the IC determines the memory constant of the meter circuit It is therefore possible to store the peak input signal by giving this RC network a long time constant or read the instanta- neous signal level by giving this RC network a very short time constant (ie no capacitor) This memory capacitor is discharged within the integrated circuit at a discharge rate related to the DC level on the meter output pin When the meter output pin is between 0 VDC and 07 VDC there is a 50 mA discharge current when the pin is between 07V and 11V there is no internal discharge current and when the voltage on pin 8 is greater than 11V there is a discharge equivalent to a 33k resistor across the memory capacitor These different discharge rates allow the meter circuit to display fast accurate responses on the lower portion of the meter display slow responses in the higher portion of the meter display and rapid discharge when the voltage is above the maximum reading the meter can display The re- sistor in series with the meter can be adjusted such that the previously mentioned responses coincide with the proper points (0 VU and a3 VU) on the meter scale 8 |
Nº de peça semelhante - LM1818N |
|
Descrição semelhante - LM1818N |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |