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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L9654 датащи(PDF) 52 Page - STMicroelectronics |
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L9654 датащи(HTML) 52 Page - STMicroelectronics |
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52 / 59 page  Functional description L9654 52/59 DocID14218 Rev 3 Bits[2:0] These bits program the threshold for the current demodulation affecting each individual channel. The current ranges supported are given in Table 36. Table 36. Current ranges supported are given in following table Bit D2 Bit D1 Bit D0 Current Threshold (mA) 0 0 0 16.50(default) 0 0 1 19.00 0 1 0 22.50 0 1 1 26.50 1 0 0 32.00 1 0 1 39.00 1 1 0 48.50 1 1 1 60.00 All incoming satellite signals are processed through deglitch filter before reaching the decoder. D3 enables a hysteresis around the current threshold for added noise immunity. Bits[5:4] These bits are used to enable the satellite channels and the internal decoders to be commanded on or off according to the following table. The suggested sequence to avoid spurious error code inside FIFO is to switch on the channel first, and enable decoder only once satellite is powered. Table 37. Satellite/decoder control Bit D5 Bit D4 Definition Satellite Decoder 0 0 OFF (default) OFF (default) 0 1 ON OFF 1 0 ON ON 1 1 OFF OFF Bits[7:6] These bits are used to configure the number of bits in the "B" protocol data field. For these bits to execute on any given channel, the channel has to be configured for "B" protocol through bits <11:8> in the MCR register. D2 Current Trip Point threshold (refer to Table 36) D1 D0 Table 35. Channel configuration register definition Bit State Description |
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