Databrief TDA7901 (STMicroelectronics) - 6
| Fabricante | STMicroelectronics |
| Descripción | High efficiency digital input automotive quad power amplifier with built-in diagnostics features, Class-G integrated, "start stop" compatible |
| Páginas / Página | 13 / 6 — TDA7901. General description. DB4653. Rev 1. page 6/13 |
| Formato / tamaño de archivo | PDF / 217 Kb |
| Idioma del documento | Inglés |
TDA7901. General description. DB4653. Rev 1. page 6/13
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TDA7901 General description 3 General description
The TDA7901 is a 4-bridge channel amplifier featuring a powerful integrated digital to analog converter, ensuring high audio quality and immunity from any input disturbances. Moreover, it combines the advantages of the Class-G solution to the improved high efficiency (SB-I) already embedded in the TDA780x running family. Class-G works based on an integrated buck controller that automatically adjusts the voltage rail depending on the audio signal level thus optimizing efficiency at each output level. Thanks to this innovative combination of features, the TDA7901 is nearly as efficient as a Class-D amplifier when providing the normal listening level of audio power (1 W). In addition, by integrating full in-play diagnostics as well as a digital impedance meter and real-time load-current monitor the TDA7901 is aligned with the most advanced audio amplifiers and with the most demanding OEM requirements. Finally, TDA7901 complies with the highest audio quality standards, such as exceptionally low noise (< 20 μV), very high Dynamic Range (117 dB), and support HD (high definition) audio as well with a frequency response flat until 80 kHz. TDA7901 works over a 4.5-18 V operating range on 4 Ω loads and it is housed in a compact PowerSO36 that helps to reduce the overall system space occupation and cost. Thanks to the above mentioned features and also considering the better EMC performances, the TDA7901 can offer a wide range of advantages compared to a class D application, including the reduced system space occupation for mid-power operation.
DB4653
-
Rev 1 page 6/13
Document Outline 1 Block diagram and pins description 1.1 Block diagram 1.2 Pin description 2 Electrical specifications 2.1 Thermal data 3 General description 4 Package information 4.1 PowerSO-36 (slug up) package information Revision history
The TDA7901 is a 4-bridge channel amplifier featuring a powerful integrated digital to analog converter, ensuring high audio quality and immunity from any input disturbances. Moreover, it combines the advantages of the Class-G solution to the improved high efficiency (SB-I) already embedded in the TDA780x running family. Class-G works based on an integrated buck controller that automatically adjusts the voltage rail depending on the audio signal level thus optimizing efficiency at each output level. Thanks to this innovative combination of features, the TDA7901 is nearly as efficient as a Class-D amplifier when providing the normal listening level of audio power (1 W). In addition, by integrating full in-play diagnostics as well as a digital impedance meter and real-time load-current monitor the TDA7901 is aligned with the most advanced audio amplifiers and with the most demanding OEM requirements. Finally, TDA7901 complies with the highest audio quality standards, such as exceptionally low noise (< 20 μV), very high Dynamic Range (117 dB), and support HD (high definition) audio as well with a frequency response flat until 80 kHz. TDA7901 works over a 4.5-18 V operating range on 4 Ω loads and it is housed in a compact PowerSO36 that helps to reduce the overall system space occupation and cost. Thanks to the above mentioned features and also considering the better EMC performances, the TDA7901 can offer a wide range of advantages compared to a class D application, including the reduced system space occupation for mid-power operation.
DB4653
-
Rev 1 page 6/13
Document Outline 1 Block diagram and pins description 1.1 Block diagram 1.2 Pin description 2 Electrical specifications 2.1 Thermal data 3 General description 4 Package information 4.1 PowerSO-36 (slug up) package information Revision history