TDA7540B Datasheet, PDF(44/75 Page) STMicroelectronics – AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

TDA7540B Datasheet, PDF (44/75 Pages) STMicroelectronics – AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)

◁

Software specification

Table 13. Addr 1 PLL Counter 1 (LSB) (continued)

MSB

LSB

d7 d6 d5 d4 d3 d2 d1 d0

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 14. Addr 2 PLL Counter 2 (MSB)

MSB

LSB

d7 d6 d5 d4 d3 d2 d1 d0

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

1 1 1 1 1 1 0 0 MSB = 64768

1 1 1 1 1 1 0 1 MSB = 65024

1 1 1 1 1 1 1 0 MSB = 65280

1 1 1 1 1 1 1 1 MSB = 65536

Function

Swallow mode: fVCO/fSYN = LSB + MSB + 32

Table 15. Addr 3,4 TV1,2

MSB

LSB

d7 d6 d5 d4 d3 d2 d1 d0

Function

0 0 0 0 0 0 0 Tuning Voltage Offset = 0

0 0 0 0 0 0 1 TVO = 25mV

0 0 0 0 0 1 0 TVO = 50mV

1 1 1 1 1 1 1 TVO = 3175mV

-TVO

+TVO

TDA7540B

44/75

▷