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Si47xx-EVB
Table 26. AM Receiver Property Window Descriptions (Continued)
Name
Description
Range
Applicable
Devices
Digital Format
Format of digital audio output.
I2S, Left-Justified,
DSP
Si4705/06,
Si4731/35/37/39,
Si4730/34/36/38-
D60 and later,
Si4741/43/45,
Si4784/85
Digital Mono
Mode Enable
ON enables mono in digital audio output.
ON, OFF Si4705/06,
Si4731/35/37/39,
Si4730/34/36/38-
D60 and later,
Si4741/43/45,
Si4784/85
Digital Sample
Precision
Digital audio output bit precision.
8-bit, 16-bit, 20-bit,
24-bit
Si4705/06,
Si4731/35/37/39,
Si4730/34/36/38-
D60 and later,
Si4741/43/45,
Si4784/85
Digital Sample
Rate Hz
Noise Blanker
Delay
Noise Blanker
DFS sample rate for digital input signal. Recom-
mended values are: 32 kHz, 44.1 kHz, or 48 kHz.
Over-sampling rate must be set in order to satisfy a
minimum DCLK of 1 MHz. Sample rate must be set to
0 before DCLK/DFS is removed.
Delay in microseconds before applying noise blank-
ing to the original samples.
Sets the threshold for detecting impulses in dB above
0, 32000–48000 Hz Si4705/06,
Si4731/35/37/39,
Si4730/34/36/38-
D60 and later,
Si4741/43/45,
Si4784/85
125–205 μs Si4742/43/44/45
0 – 90 dB Si4742/43/44/45
Detect Threshold the noise floor. If set to 0, impulse noise blanking is
disabled.
Noise Blanker IIR Sets the cut-off frequency for the low pass filter that is
300–1600 Si4742/43/44/45
Filter
used for noise floor estimation in noise blanker detec-
tion.
Noise Blanker
Interval
Noise Blanker
Rate
Interval original samples are replaced by interpolated
clean samples.
Maximum noise blanking rate.
8 – 48 μs Si4742/43/44/45
100 – 6400 Hz Si4742/43/44/45
Band Bottom
Limit (kHz)
The lower frequency limit for the seek function. This
is set automatically by the GUI based on spacing
selection.
10 kHz Spacing:
520 kHz
9 kHz Spacing:
All
510 kHz
Band Top Limit
(kHz)
The upper frequency limit for the seek function.
1710 kHz All
Channel Filter
Channel Filter allows the user to select the bandwidth
1, 1.8, 2, 3, 4,
All
of the bandpass channel filter.
Rev. 0.8
6 kHz
103
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