TDA7541B Datasheet, PDF (48/77 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system

Software specification
Table 18. Addr 1 TPLL Counter 1 (LSB)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
PC<7:0>
0 0 0 0 0 0 0 0 LSB = 0
0 0 0 0 0 0 0 1 LSB = 1
0 0 0 0 0 0 1 0 LSB = 2
Function
1 1 1 1 1 1 0 0 LSB = 252
1 1 1 1 1 1 0 1 LSB = 253
1 1 1 1 1 1 1 0 LSB = 254
1 1 1 1 1 1 1 1 LSB = 255
Table 19. Addr 2 TPLL Counter 2 (MSB)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
PC<15:8>
0 0 0 0 0 0 0 0 MSB = 0
0 0 0 0 0 0 0 1 MSB = 256
0 0 0 0 0 0 1 0 MSB = 512
Function
1
1
1
1
Note:
111110
111110
111111
111111
0 MSB = 64768
1 MSB = 65024
0 MSB = 65280
1 MSB = 65536
Swallow mode: fVCO/fSYN = LSB + MSB + 32
Table 20. Addr 3 TV(00h)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
TVO<7:0>
000000
0 Tuning Voltage Offset = 0mV
000000
1 TVO = 25 mV
000001
0 TVO = 50 mV
111111
0 TVO = 3150 mV
111111
1 TVO = 3175 mV
0
-TVO
-
-
-
-
-
-
-
1
+TVO
48/77
Doc ID 16048 Rev 1
TDA7541B