Electronic Components Datasheet Search |
|
BA3880S Datasheet(PDF) 5 Page - Rohm |
|
BA3880S Datasheet(HTML) 5 Page - Rohm |
5 / 10 page 423 Audio ICs BA3880S FCircuit operation The BA3880S high-definition sound processor system IC treats the amplifier and speakers as a total audio sys- tem, and performs signal processing at the amplifier in- put stage to accurately reproduce the rise sections of au- dio signals that determine the characteristics of sound, and ensure that the replayed audio is as close to the origi- nal sound and as natural sounding as possible. Problems relating to playback of sound on audio sys- tems. With naturally-generated sound, high-frequency har- monic components generally occur first, followed by the fundamental frequency components. This also applies to the attack section of the sound that characterizes many musical instruments. It is the amplitude component that gives form to the frequency component and envelope at the rising point of sound, and this expresses the charac- teristics of the sound. Therefore, when replaying audio on audio playback systems, it is extremely important that the rise section of the signal be expressed accurately with respect to the original sound. However, there is inevitable mismatching between the speakers and amplifiers in current audio systems. Solid- state power amplifiers use negative feedback techniques and operate off a fixed voltage supply, but as speakers are a current element, mismatching in the system inevit- ably occurs. In addition, the speaker impedance charac- teristics are strongly influenced by the electrical reac- tance of the voice coil, and the mechanical reactance of the cone assembly. As a result of this, distortion is gener- ated in the rising sections of audio signals, causing phase shift in the reproduced sound. In addition, imped- ance increases in the treble region which reduces the speaker amplitude and reduces the harmonic compo- nent, and as a result there is a tendency to masking of large mid-frequency signal components that follow, and this makes it difficult to reproduce the rising sections of the sound. FOperating principle To solve the problems described above, the BA3880S performs the audio signal processing described below. Phase shift compensation |
Similar Part No. - BA3880S |
|
Similar Description - BA3880S |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |