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TDA7541 数据表(PDF) 48 Page - STMicroelectronics |
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TDA7541 数据表(HTML) 48 Page - STMicroelectronics |
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48 / 76 page ![]() Software specification TDA7541 48/76 Note: Swallow mode: fVCO/fSYN = LSB + MSB + 32 Table 17. Addr 1 TPLL Counter 1 (LSB) MSB LSB Function d7 d6 d5 d4 d3 d2 d1 d0 PC<7:0> 0 0 0 0000 0 LSB = 0 0 0 0 0000 1 LSB = 1 0 0 0 0001 0 LSB = 2 - --- --- - - 1 1 1 1110 0 LSB = 252 1 1 1 1110 1 LSB = 253 1 1 1 1111 0 LSB = 254 1 1 1 1111 1 LSB = 255 Table 18. Addr 2 TPLL Counter 2 (MSB) MSB LSB Function d7 d6 d5 d4 d3 d2 d1 d0 PC<15:8> 0 0 0000 0 0 MSB = 0 0 0 0000 0 1 MSB = 256 0 0 0000 1 0 MSB = 512 - - - ---- - - 1 1 1111 0 0 MSB = 64768 1 1 1111 0 1 MSB = 65024 1 1 1111 1 0 MSB = 65280 1 1 1111 1 1 MSB = 65536 Table 19. Addr 3 TV(00h) MSB LSB Function d7 d6 d5 d4 d3 d2 d1 d0 TVO<7:0> 0 0 0 0 0 0 0 Tuning Voltage Offset = 0mV 000 000 1 TVO = 25mV 000 001 0 TVO = 50mV - ------ - - 111 111 0 TVO = 3150mV 111 111 1 TVO = 3175mV 0-TVO 1+TVO |
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