AN332 Datasheet, PDF (108/302 Pages) Silicon Laboratories – Si47XX PROGRAMMING GUIDE

AN332
Property 0x1803. FM_BLEND_RSSI_RELEASE_RATE
Sets the mono to stereo release rate for RSSI based blend. Smaller values provide slower release and larger
values provide faster release. 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 when in powerup mode. The default is 400 (approximately 164 ms).
RELEASE[15:0] = 65536/time, where time is the desired transition time in ms.
Available in: Si4706-C30 and later, Si4740/41/42/43/44/45, Si4704/05/30/31/34/35/84/85-D50 and later
Default: 0x0190
Step: 1
Range: 0 (disabled), 1–32767
Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Name
RELEASE[15:0]
100
x = 0x1800: FM_BLEND_RSSI_STEREO_THRESHOLD (0-127 dBuV)
90 ^{y = 0x1801: FM_BLEND_RSSI_MONO_THRESHOLD (0-127 dBuV)}
80
70
60
50
40
30
20
10
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64
RSSI (dBuV)
x=49, y=30 (Default) x=60, y=30 x=49, y=20
Figure 4. RSSI Blend
108
Rev. 1.0