ATR4258 Datasheet, PDF (34/38 Pages) ATMEL Corporation – AM/FM RECEIVER IC

Figure 18. Selectivity
20
4.5
10
Pdes/Pundes
4
0
3.5
-10
3
-20
2.5
-30
2
-40
1.5
-50
1
Adjacent
-60
0.5
-70
0
-300 -250 -200 -150 -100 -50 0 50 100 150 200 250 300
Frequency Offset [kHz]
Note:
Integrated bandfilter BW setting: 120 kHz
Desired signal level adjusted to 40 dB S/N without undesired signal
Undesired signal level adjusted to 26 dB S/N
34 ATR4258
4838A–AUDR–10/04