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TDA7540B Datasheet, PDF (51/75 Pages) STMicroelectronics – AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)
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TDA7540B
Software specification
Table 26. Addr 15 FM AGC (continued)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
000
001
010
011
100
101
110
111
0
1
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 27. 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
LSB
d1 d0
Function
0
0 WAGC V4TH= 90(65 ANT)dBµ V71TH= 90(60 ANT)dBµ
0
1 WAGC V4TH= 94(69 ANT)dBµ V71TH= 94(64 ANT)dBµ
1
0 WAGC V4TH= 97(72 ANT)dBµ V71TH= 96,5(66,5 ANT)dBµ
1
1
WAGC V4TH= 98,5(73,5 ANT)dBµ V71TH= 98,5(68,5
ANT)dBµ
0
0 WAGC V4TH= 100(75 ANT)dBµ V71TH= 100(70 ANT)dBµ
0
1 WAGC V4TH= 101,5(76,5 ANT)dBµ V71TH= 101(71 ANT)dBµ
1
0
WAGC V4TH= 102,5(77,5 ANT)dBµV71TH= 102,5(72,5
ANT)dBµ
1
1
WAGC V4TH= 103,5(78,5 ANT)dBµV71TH= 103,5(73,5
ANT)dBµ
0
0 WAGC V4TH= 104,5(79,5 ANT)dBµ V71TH= 104(74 ANT)dBµ
0
1 WAGC V4TH= 105(80 ANT)dBµ V71TH= 105(75 ANT)dBµ
1
0 WAGC V4TH= 106(81 ANT)dBµ V71TH= 105,5(75,5 ANT)dBµ
1
1
WAGC V4TH= 106,5(81,5 ANT)dBµV71TH= 106,5(76,5
ANT)dBµ
0
0 WAGC V4TH= 107(82 ANT)dBµ V71TH= 107(77 ANT)dBµ
0
1 WAGC V4TH= 108(83 ANT)dBµ V71TH= 107,5(77,5 ANT)dBµ
1
0 WAGC V4TH= 108,5(83,5 ANT)dBµ V71TH= 108(78 ANT)dBµ
1
1 WAGC V4TH= 109(84 ANT)dBµ V71TH= 108,5(78,5 ANT)dBµ
DAGC V71TH= 74(44 ANTENNA)dBµ
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