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TDA7501 Fiches technique(PDF) 8 Page - STMicroelectronics |
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TDA7501 Fiches technique(HTML) 8 Page - STMicroelectronics |
8 / 18 page Figure 5. Output part. DESCRIPTION OF THE OUTPUT PART The TDA7501 has 6 independent outputstage with volume control. The first 4 (main) outputs have an input selector which allows to select be- sides the DAC-outputs CD-direct or Phone/Navi- gation-mix. In addition one can mix the SPKR1 with Phone/Navigationso that traffic or navigation announcements can bypass the DSP (see figure 5). The TDA7500 CODEC outputs have a maximum output voltage of 0.5Vrms . To obtain 4Vrms , (in the dual supply mode only) the signal is first am- plified to have a reference amplitude of 2V rms. The following volume stage offers up to 15dB gain which gives along with the programmable 6dB gain in the output-stage enough overdrive capability. To achieve the maximum output swing of 4Vrms the device must be supplied with an ad- ditional supply of 12V. With a single supply (Vdd =VCC = 8.3V) 2.8Vrms are obtained at the output at maximum. TDA7501 8/18 |
Numéro de pièce similaire - TDA7501 |
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Description similaire - TDA7501 |
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