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TDA7541B Datasheet, PDF (51/77 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system
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TDA7541B
Software specification
Table 23. Addr 6 AGC (FM 06h, AM 2Ah)
Addr12 MSB
LSB
d7 d7 d6 d5 d4 d3 d2 d1 d0
Function
RFAGC<1:0>
0 0 RFAGC threshold FM V8-10= 80 dBµV, AM V3= 92 dBµV
-
-
- - - - - 0 1 RFAGC threshold FM V8-10= 84 dBµV, AM V3= 99 dBµV
1 0 RFAGC threshold FM V8-10= 88 dBµV, AM V3= 102 dBµV
1 1 RFAGC threshold FM V8-10= 92 dBµV, AM V3= 104 dBµV
IFAGC<3:2>
1
00
IFAGC threshold FM V61= 82 dBµV, AM V61= 89 dBµV
1
01
IFAGC threshold FM V61= 88 dBµV, AM V61= 95 dBµV
1
10
IFAGC threshold FM V61= 91 dBµV, AM V61= 99 dBµV
1
-
- - - 11 -
- IFAGC threshold FM V61= 94 dBµV, AM V61= 102 dBµV
0
00
IFAGC threshold FM V61= 82 dBµV, AM V61= 79 dBµV
0
01
IFAGC threshold FM V61= 88 dBµV, AM V61= 85 dBµV
0
10
IFAGC threshold FM V61= 91 dBµV, AM V61= 89 dBµV
0
11
IFAGC threshold FM V61= 94 dBµV, AM V61= 92 dBµV
DAGC<5:4>
00
DAGC V56= 86 dBµ
-
-
- 01 - - -
- DAGC V56= 91 dBµ
10
DAGC V56= 95 dBµ
11
DAGC V56= 98 dBµ
LNA<7:6>
00
I4 = 400 µA, V54 = 4.5 V, AM LNA Pin/FET mode ”OFF”
-
0 1 - - - - - - I4 = 400 µA + 50 µA, V54 = 3.5 V
10
I4 = 400 µA + 100 µA, V54 = 3.5 V
11
I4 = 400 µA + 100 µA, V54 = 3.5 V
Doc ID 16048 Rev 1
51/77
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