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TDA7540B Datasheet, PDF (52/75 Pages) STMicroelectronics – AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)
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Software specification
Table 27. Addr 16 AM AGC (continued)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
DAGC V71TH= 77(47 ANTENNA)dBµ
DAGC V71TH= 79(49 ANTENNA)dBµ
DAGC V71TH= 80,5(50,5 ANTENNA)dBµ
DAGC V71TH= 82(52 ANTENNA)dBµ
DAGC V71TH= 83,5(53,5 ANTENNA)dBµ
DAGC V71TH= 85(55 ANTENNA)dBµ
DAGC V71TH= 86,5(56,5 ANTENNA)dBµ
DAGC V71TH= 88(58 ANTENNA)dBµ
DAGC V71TH= 89(59 ANTENNA)dBµ
DAGC V71TH= 90(60 ANTENNA)dBµ
DAGC V71TH= 91(61 ANTENNA)dBµ
DAGC V71TH= 92(62 ANTENNA)dBµ
DAGC V71TH= 93(63 ANTENNA)dBµ
DAGC V71TH= 94(64 ANTENNA)dBµ
DAGC V71TH= 96(66 ANTENNA)dBµ
Table 28. 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
00
Spike cancelation ”OFF”
01
10
Threshold for spike cancelation 750mV
Threshold for spike cancelation 270mV
11
Threshold for spike cancelation 520mV
TDA7540B
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