TDA7540N Datasheet, PDF (53/76 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS)

TDA7540N
Software specification
Table 27. Addr 15 FM AGC
MSB
d7 d6 d5 d4 d3 d2
000
001
010
011
100
101
110
111
0
1
LSB
d1 d0
Function
KAGC threshold 80dBµV
KAGC threshold 82dBµV
KAGC threshold 84dBµV
KAGC threshold 86dBµV
KAGC threshold 88dBµV
KAGC threshold 90dBµV
KAGC threshold 92dBµV
Keying AGC “OFF”
RF KAGC“0FF”
RF KAGC“0N”
Table 28. Addr 16 AM AGC
MSB
d7 d6 d5 d4 d3 d2
00
00
00
00
01
01
01
01
10
10
10
10
11
11
11
11
0000
0001
0010
0011
LSB
d1 d0
Function
0 0 not valid
0 1 not valid
1
0 WAGC V_4TH= 97dBµ V_71TH= 96.5dBµ
1
1 WAGC V_4TH= 98.5dBµ V_71TH= 98.5dBµ
0
0 WAGC V_4TH= 100dBµ V_71TH= 100dBµ
0
1 WAGC V_4TH= 101.5dBµ V_71TH= 101dBµ
1
0 WAGC V_4TH= 102.5dBµ V_71TH= 102.5dBµ
1
1 WAGC V_4TH= 103.5dBµ V_71TH= 103.5dBµ
0
0 WAGC V_4TH= 104.5dBµ V_71TH= 104dBµ
0
1 WAGC V_4TH= 105dBµ V_71TH= 105dBµ
1
0 WAGC V_4TH= 106dBµ V_71TH= 105.5dBµ
1
1 WAGC V_4TH= 106.5dBµ V_71TH= 106.5dBµ
0
0 WAGC V_4TH= 107dBµ V_71TH= 107dBµ
0
1 WAGC V_4TH= 108dBµ V_71TH= 107.5dBµ
1
0 WAGC V_4TH= 108.5dBµ V_71TH= 108dBµ
1
1 WAGC V_4TH= 109dBµ V_71TH= 108.5dBµ
DAGC V_71TH= 74dBµ
DAGC V_71TH= 77dBµ
DAGC V_71TH= 79dBµ
DAGC V_71TH= 80.5dBµ
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