 |
Moteur de recherche de fiches techniques de composants électroniques |
|
|
Moteur de recherche de fiches techniques de composants électroniques |
|
LM388 Fiches technique(PDF) 3 Page - National Semiconductor (TI) |
|
|
||||||||||||||||||||||||||||||
LM388 Fiches technique(HTML) 3 Page - National Semiconductor (TI) |
|
|
3 / 8 page  Typical Performance Characteristics (Continued) Swing vs Supply Voltage Peak-to-Peak Output Voltage Voltage Gain vs Frequency Distortion vs Frequency Distortion vs Output Power Power4X Load Device Dissipation vs Output Output Power8X Load Device Dissipation vs Output Power16X Load Device Dissipation vs TLH7846 – 6 Application Hints GAIN CONTROL To make the LM388 a more versatile amplifier two pins (2 and 6) are provided for gain control With pins 2 and 6 open the 135 kX resistor sets the gain at 20 (26 dB) If a capaci- tor is put from pins 2 to 6 bypassing the 135 kX resistor the gain will go up to 200 (46 dB) If a resistor is placed in series with the capacitor the gain can be set to any value from 20 to 200 A low frequency pole in the gain response is caused by the capacitor working against the external resis- tor in series with the 150X internal resistor If the capacitor is eliminated and a resistor connects pins 2 to 6 then the output dc level may shift due to the additional dc gain Gain control can also be done by capacitively coupling a resistor (or FET) from pin 6 to ground as in Figure 7 Additional external components can be placed in parallel with the internal feedback resistors to tailor the gain and frequency response for individual applications For example we can compensate poor speaker bass response by fre- quency shaping the feedback path This is done with a se- ries RC from pin 6 to 13 (paralleling the internal 15 kX resis- tor) For 6 dB effective bass boost R j 15 kX the lowest value for good stable operation is R e 10 kX if pin 2 3 |
Numéro de pièce similaire - LM388 |
|
Description similaire - LM388 |
|
|
|
Lien URL |
| Politique de confidentialité |
| ALLDATASHEET.FR |
| ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants 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 |
French ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
