TDA7703 Datasheet, PDF (23/32 Pages) STMicroelectronics – Automatic self alignment for image rejection

TDA7703
Front-end processing
Table 17. Register 0x01
Register number
MSB
LSB
Register definition
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
FM mixer gain
0
high
1
low
FM AGC time constant
0
normal
1
fast
FM AGC output mode
00
normal
01
constant 15 mA
10
constant 1 mA
Table 18. Register 0x02
Register number
MSB
LSB
Register definition
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
FM RF AGC threshold @
mixin
0 0 87 dBµV
0 1 89 dBµV
1 0 91 dBµV
1 1 93 dBµV
FM iF AGC threshold @
IFADC in
00
120 dBµV
01
122 dBµV
10
124 dBµV
Rev 1
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