TDA7546 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TDA7546 Datasheet PDF : 68 Pages
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TDA7546
Software specifications
Table 22. Addr 11 quality deviation detection (continued)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0
Disable ISS filter to fixed bandwith (ISS80) in automatic
control
1
Enable ISS filter to fixed bandwith (ISS80) in automatic control
Table 23. Addr 14 VCODIV/PLLREF
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0
0 not valid (only for testing)
0
1 VCO frequency divided by 2
1
0 VCO frequency divided by 3
1
1 original VCO frequency
0
VCO” I” signal 0°C
1
VCO “I” signal 180°C
1
0
0
PLL reference frequency 50KHz
1
0
1
PLL reference frequency 25KHz
1
1
0
1
1
1
PLL reference frequency 10KHz
PLL reference frequency 9KHz
0
0
0
PLL reference frequency 2KHz
0
0
has to be set
Table 24. Addr 15 FM AGC
MSB
d7 d6 d5 d4 d3 d2
0
0
0
1
1
0
1
1
0
0
0
0
0
1
0
1
0
LSB
d1 d0
Function
0
0 RFAGC threshold V3-5TH = 82(74 ANT)dBμV
0
1 RFAGC threshold V3-5TH = 88(80 ANT)dBμV
1
0 RFAGC threshold V3-5TH = 92(84 ANT)dBμV
1
1 RFAGC threshold V3-5TH = 94(86 ANT)dBμV
IFAGC threshold V77TH = 86(60 ANT)dBμV
IFAGC threshold V77TH = 92(66 ANT)dBμV
IFAGC threshold V77TH = 96(70 ANT)dBμV
IFAGC threshold V77TH = 98(72 ANT)dBμV
KAGC threshold 80dBμV
KAGC threshold 82dBμV
KAGC threshold 84dBμV
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