User`s guide

Si47xx-EVB
46 Rev. 0.8
Reference Clock
Prescaler
This field is used to specify the prescaler value. The
input to the RCLK pin divided by the prescaler is the
reference clock. The reference clock must be in the
range of 31130 to 34406 Hz.
1–4095 All
Audio Level High
Duration (mSec)
Set the duration for the audio level high before an
interrupt is generated.
0–65535 All
Audio Level High
Threshold (dBFS)
An interrupt will be generated when the audio input
level rises above this threshold for the duration greater
than the Audio Level High Duration setting. This may
also be called loud detection indicator.
–70 to 0 All
Audio Level Low
Duration (mSec)
Set the duration for the audio level low before an inter-
rupt is generated.
0–65535 All
Audio Level Low
Threshold (dBFS)
An interrupt will be generated when the audio input
level falls below this threshold for the duration greater
than the Audio Level Low Distortion setting. This may
be called silence detection indicator.
–70 to 0 All
Varactor Capacitor
Overwrite
This field allows the user to manually overwrite the
tuning capacitance. A number 0 indicates that the
tuning cap is automatically adjusted. Any number
other than 0 (1 to 191) will indicate that the tuning cap
is manually adjusted.
Automatic: 0,
Manual: 1–191
All
Table 9. FM Transmitter Settings in Analog Mode Property Window Descriptions (Continued)
Item Description Range Devices