Date despre integratul ZD9158 ?

[poplex22]

daca ma puteti ajuta cu ceva date despre acest ic. varianta smd 8 pini . Este dintr-un sistem audio 5.1/2.1 model : A521 cred fabricat fie in china sau india cu componente din zona . Cu google am gasit fabricantul ceva prin hong-kong si china dar ,am observat nu doar pentru acest ic., nu dau nimic date tehnice , nu inteleg de ce ?, doar este in avantajul lor ?!

[modoran]

De unde e asta, ceva subfoofer chinezesc ?

 

(45HZ-130HZ) dedicated circuit, the external circuit is extremely simple, it can through the external components (resistors), low-frequency band-pass filter circuit IC, is designed specifically for bass audio bass audio signal processing characteristics, the design of a bass band- Of the simple adjustment to overcome the different caliber speaker for the special band of the audio signal attenuation attenuation can be applied to a variety of bass audio signal processing circuit to process the signal needs. On the useless signal has a strong suppression characteristics, band-pass characteristics of the rising edge, the steepest descent edge (attenuation greater than 11db).

Features:

1, low power consumption (Vcc = ± 16V, 70.4mw, Vcc = ± 2.5v, the 8mw).

2, wide applicability, center frequency, bandwidth adjustable.

3, the voltage range is wide (Vcc: ± 2.5V- ± 16V).

4, to suppress unwanted signals super (band-pass signal attenuation in 11db or more).

5, the external circuit is simple.

For more details, please contact the sales person.

[poplex22]

dupa cum am spus este dintr-un sistem subwoofer A521 chinezesc sau indian acum sunt la concurenta care dupa cine copiaza !, am un brum pe un canal desi am inlocuit ic-ul , era un D1875 si am pus tda2030 , am un brum slab cu sau fara semnal pe intrare dar uneori dispare si tot aiurea apare , sa fie nevoie de vreo compensare ?

[yokoono]

Mai curand este nevoie de un electrolitic.