SI47XX-EVB Datasheet, PDF (103/164 Pages) Silicon Laboratories – Thank you for purchasing the Silicon Laboratories

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