Si4827-DEMO

Rev. 0.1

7

Table 2. Radio Configuration Parameters

FM Parameter

AM Parameter

SW Parameter

Bass/Treble: 0-8

Default: 4

Bass/Treble: 1-7

Default: 3

Bass/Treble: 1-7

Default: 3

Digital volume: 0-63

Default: 63

Digital volume: 0-63

Default: 63

Digital volume: 0-63

Default: 63

Band top: max 109 MHz

Default: 108/108 MHz for

wide band FM1/FM2

Band top: max 1750 kHz

Default: 1710 kHz

Band top: max 28.5 MHz

Default: 7.6/10.0/18.0/16.0/23.0/22.0/18.0/

22.0 MHz for wideband SW1 to SW8 respec-

tively.

Band bottom: min 64 MHz

Default: 64/76 MHz for wide

band FM1/FM2

Band bottom: min 504 kHz

Default: 522 kHz

Band bottom: min 2.3 MHz

Default: 3.2/3.2/5.9/7.0/7.0/9.0/9.5/10.0 MHz for

wideband SW1 to SW8 respectively.

De-emphasis: 50 or 75 µs

Default: 75 µs

Channel space: 9 or 10 kHz

Default: 9 kHz

Tone/VOL mode: a-d

Default: d

Tuning preference: a-b

Default: a

Tuning preference: a-b

Default: a

Notes:

1. Tone/VOL mode has four modes:



Bass/treble mode: no digital volume control, fixed volume level at 59



Digital volume mode: no bass/treble effect, volume levels from 0 to 63



Mixed mode 1: bass/treble & digital volume coexist, volume levels from 0 to 63, scale to 0 ~59



Mixed mode 2: bass/treble & digital volume coexist, volume levels from 0 to 63

2. The Tuning preference of FM mode and SW mode has two preferences:



preference1: When tuning to adjacent channels, the volume level decreases by 2 dB.



preference2: When tuning to adjacent channels, the volume level remains unchanged.

3. There is no tuning preference selection for AM mode.