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TDA7514 数据表(PDF) 41 Page - STMicroelectronics |
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TDA7514 数据表(HTML) 41 Page - STMicroelectronics |
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41 / 74 page  41/74 TDA7514 Table 34. SUBADDRESS 19: 456KHz VCO Adjustment (manual mode) Table 35. SUBADDRESS 20 : FM Smeter stop threshold, ISS Smeter threshold. (*) Threshold is programmed by byte 14 bits<1:0> according to the following table: Table 36. SUBADDRESS 14: Soft Mute MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 0 Enable IFC (I2CBUS) OFF 1 ON 0 Enable 456KHz VCO adj procedure (I2CBUS) OFF 1 ON 00 00 0 VCO 456KHz frequency adjust (I2CBUS) minfreq 10 00 0 -- -- - 11 11 0 00 00 1 -- -- - 01 11 1 11 11 1 maxfreq VCO 456KHz frequency adjust mode 0 Manual adjustment procedure (I2CBUS) 1 Automatic adjustment procedure (State Machine) MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 FM Smeter Stop Station threshold 0 0 0 0 400 mV - - - - step 200 mV 1 1 1 1 3400 mV FM ISS Smeter threshold ( ∆ from Softmute thresh. (*)). 0 000 0 mV - - - - step 67 mV 0 1 1 1 467 mV 1 000 0 mV -- -- - 1 111 -467 mV MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 Soft mute threshold 0 0 0.3V 0 1 0.4V 1 0 1.6V 1 1 1.8V |
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