TDA7540N Datasheet, PDF(54/76 Page) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS)

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TDA7540N Datasheet, PDF (54/76 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS)

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Software specification

TDA7540N

Table 28. Addr 16 AM AGC (continued)

MSB

LSB

d7 d6 d5 d4 d3 d2 d1 d0

Function

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

1111

DAGC V71TH= 82dBÂµ

DAGC V71TH= 83.5dBÂµ

DAGC V71TH= 85dBÂµ

DAGC V71TH= 86.5dBÂµ

DAGC V71TH= 88dBÂµ

DAGC V71TH= 89dBÂµ

DAGC V71TH= 90dBÂµ

DAGC V71TH= 91dBÂµ

DAGC V71TH= 92dBÂµ

DAGC V71TH= 93dBÂµ

DAGC V71TH= 94dBÂµ

DAGC V71TH= 96dBÂµ

Table 29. Addr 17 FM demodulator fine adjust

MSB

LSB

d7 d6 d5 d4 d3 d2 d1 d0

Function

0 0 0 0 0 0 0mV

0 0 0 0 0 1 +8.5mV

0 0 0 0 1 0 +17mV

0 1 1 1 1 1 +263.5mV

1 0 0 0 0 0 0mV

1 0 0 0 0 1 -8.5mV

1 0 0 0 1 0 -17mV

1 1 1 1 1 1 -263.5mV

Spike cancelation âOFFâ

Threshold for spike cancelation 750mV

Threshold for spike cancelation 270mV

Threshold for spike cancelation 520mV recommended

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