参数资料
型号: SI4731-D50-EVB
厂商: Silicon Laboratories Inc
文件页数: 70/164页
文件大小: 0K
描述: BOARD EVAL SI4730/SI4731-D50
标准包装: 1
类型: 接收器
频率: 520kHz ~ 1.71MHz,64MHz ~ 108MHz
适用于相关产品: SI4731
已供物品:
Si47xx-EVB
Table 15. FM Receiver Settings Property Window Descriptions (Continued)
Items
Seek Band Top
(MHz)
Description
The upper frequency limit for the seek
function. This is set automatically by the
GUI based on band and spacing selection.
Range
US: 107.9 MHz
(200 kHz
spacing)
Applicable Devices
All
Europe:
108 MHz
(100 kHz
spacing)
Japan: 90 MHz
Japan Wide:
108 MHz
Max Tune Error
(kHz)
Seek Mode
Selects the maximum tuning frequency
error before the AFC rail indicator is set.
Select between stopping the seek at the
band limits or wrapping at the band limits to
0–255 kHz
Stop at limit or
wrap at limit
All
All
return to the starting frequency.
Seek RSSI
Threshold (dBuV)
Seek SNR
Threshold (dB)
Spacing
The seek RSSI threshold level used for
seek and scan functions.
The seek SNR threshold level used for seek
and scan functions.
Channel spacing
0–255 dB
0–255 dB
50, 100, or
All
All
All
200 kHz
Soft Mute Attack
Rate
(dB/s)
Sets the attack rate for entering soft mute.
1–31999 dB/s
Si4706-C30 and later,
Si4740/41/42/43/44/45,
Si4704/05/30/31/34/35/84/
85-D50 and later
Soft Mute
Attenuation Slope
(dB/dB)
Soft mute attenuation slope specifies the
slope of the attenuation curve when the
signal SNR is below the soft mute SNR
1–63
Si4704/05/06/3x-C40 and
later, Si4740/41/42/43/44/45
threshold. It is specified as dB/dB where the
attenuation applied is simply the value
specified here times the amount the signal
SNR is below the threshold.
Soft Mute Max
Attenuation (dB)
Maximum attenuation for soft mute.
0–31 dB,
0 = disable soft
All except Si4749
mute
Soft Mute Release Sets the release rate for leaving soft mute.
Rate
(dB/s)
1–31999 dB/s
Si4706-C30 and later,
Si4740/41/42/43/44/45,
Si4704/05/30/31/34/35/84/
85-D50 and later
Soft Mute SNR
Threshold (dB)
Soft Mute Rate
SNR threshold level used to engage soft
mute.
Selects the soft mute rate.
0–15 dB
1–255 dB
All except Si4749
Si4706/07/20/21/84/85-B20
and earlier,
Si4704/05/30/31/34/35-C40
and earlier
70
Rev. 0.8
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