AN543
Rev. 0.9
149
Property 0x221A FM_CHBW_ASSI200DEV_MIN_MAX
The FM_CHBW_ASSI200DEV_MIN_MAX property sets the maximum and minimum channel filter bandwidth in
kHz based on ASSI200DEV. To force a given Channel Filter Bandwidth, set the min and max to the same value.
This engine is only enabled when ASSI200 is above the FM_CHBW_BLOCKER_THR. The CTS bit (and optional
interrupt) is set when it is safe to send the next command. This property may only be set or read in powerup mode.
Note:
The Si4750/51/52/53 do not support dynamic bandwidth control, hence MIN[7:0] = MAX[7:0]. Default for Si4750/51/52/
53-A10 is 110 kHz. The default for Si4750/51/52/53-A30 is 150 kHz.
Si475x-A20 and earlier: This property is not available.
Si475x-A30, Default: 0x5020
Si475x-A40 and later: Default: 0x9646
FM_CHBW_ASSI200DEV_MIN_MAX
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
MAX[7:0]
MIN[7:0]
0x96
0x46
Bit
Name
Function
15:8
MAX[7:0]
Sets the maximum Channel Filter Bandwidth in kHz.
Range is 1–150 kHz.
7:0
MIN[7:0]
Sets the minimum Channel Filter Bandwidth in kHz.
Range is 1–150 kHz.
