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TDA7412 датащи(PDF) 11 Page - STMicroelectronics |
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TDA7412 датащи(HTML) 11 Page - STMicroelectronics |
11 / 56 page 11/56 TDA7412 100K 15K 15K 15K 15K 1 100K 100K 1 - + 100K 28K 28K 28K 28K SE4R 100K - + 100K 15K 15K 15K 15K 1 100K 1 - + 100K 28K 28K 28K 28K 100K 100K 100K - + SE2 SE3 FD1- FD1+ STEREO FD2- FD2+ STEREO SE4 SE4R SE1 STEREO AM MONO MPX MD1G MD1 MONO IN GAIN IN GAIN MUTE MUTE MUTE MIXING STAGE SECOND SOURCE SELECTOR MIXING SELECTOR MAIN SOURCE SELECTOR SE3 BEEP FM MD1 MD2 FD1/SE2 FD2 MD1/SE4 MD2 SE1 AM FM SE3 FD1/SE2 FD2 MD1/SE4 MD2 SE1 AM FM MD2G MD2 MONO 100K NOISE BLANKER + STEREO DECODER D00AU1142 1.0 DESCRIPTION OF THE AUDIOPROCESSOR PART 1.1 Input stages In the basic configuration two full-differential, two mono-differential, one single ended stereo and one single- ended mono input are available. In addition a dedicated input for the stereodecoder MPX-signal is present. Figure 1. Input-stages Full-differential stereo Input 1 (FD1) The FD1-input is implemented as a buffered full-differential stereo stage with 100k Ω input-impedance at each input. The attenuation is programmable in 3 steps from 0 to -12dB in order to adapt the incoming signal level. A 6dB attenuation is included in the differential stage, the additional 6dB are done by a following resistive divid- er. This input is also configurable as two single-ended stereo inputs (see pin-out). Full-differential stereo Input 2 (FD2) The FD2-input has the same general structure as FD1, but with a programmable attenuation of 0 or 6dB em- bedded in the differential stage. |
Аналогичный номер детали - TDA7412 |
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Аналогичное описание - TDA7412 |
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