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TDA7540B Datasheet(PDF) 48 Page - STMicroelectronics |
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TDA7540B Datasheet(HTML) 48 Page - STMicroelectronics |
48 / 75 page Software specification TDA7540B 48/75 Table 21. Addr 10 Quality Detection Multipath MSB LSB Function d7 d6 d5 d4 d3 d2 d1 d0 0 Multipath control “ON” 1 Multipath control “OFF” 0 MP bandpass frequency 19KHz 1 MP bandpass frequency 31KHz 0 MP gain 12dB 1 MP gain 23dB 0 0 MP threshold 0.50V 0 1 MP threshold 0.75V 1 0 MP threshold 1.00V 1 1 MP threshold 1.25V 0 0 Application mode 1 0 1 Application mode 2 0 Multipath eliminates ac 1 Multipath eliminates ac and ac+ Table 22. Addr 11 Quality Deviation Detection MSB LSB Function d7 d6 d5 d4 d3 d2 d1 d0 0 0 0 charge current 39 µA, discharge current 1µA 0 0 1 charge current 37 µA, discharge current 3µA 0 1 0 charge current 35 µA, discharge current 5µA 0 1 1 charge current 33 µA, discharge current 7µA -- - - 1 1 1 charge current 25 µA, discharge current 15µA 0 0 DEV threshold for ISS narrow/wide 30kHz 0 1 DEV threshold for ISS narrow/wide 45kHz 1 0 DEV threshold for ISS narrow/wide 60kHz 1 1 DEV threshold for ISS narrow/wide 75kHz 0 0 DEV threshold for ISS filter “OFF” ratio 1.5 0 1 DEV threshold for ISS filter “OFF” ratio 1.4 1 0 DEV threshold for ISS filter “OFF” ratio 1.3 1 1 DEV threshold for ISS filter “OFF” ratio 1 |
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