SI47XX-EVB Datasheet, PDF(47/164 Page) Silicon Laboratories – Thank you for purchasing the Silicon Laboratories

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SI47XX-EVB Datasheet, PDF (47/164 Pages) Silicon Laboratories – Thank you for purchasing the Silicon Laboratories

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Si47xx-EVB

5.6. FM Transmitter Settings (Digital Mode) Property Window

FM transmitter settings can be configured through the properties window by selecting Windowï®Properties.

Properties are grouped into categories which can be selected from the drop-down box in the upper right of the

window. For convenience, all FM transmitter properties are also located in Windowï®Properties ï®TX: All. Digital

mode properties will be available if CODED or SPDIF modes was selected in the initialization window.

Figure 40. FM Transmitter Settings in Digital Mode Property Window

Table 10. FM Transmitter Settings in Digital Mode Property Window Descriptions

Item

Description

Range

Reference Clock

Frequency (Hz)

Reference Clock

Prescaler

Digital Format

Digital Sample

Precision

Digital Sample

Rate (Hz)

This field is used to specify the frequency of the refer-

ence clock. 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.

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.

Sets I2S of left justified digital format.

Select the precision of the digital audio input.

Sets the DFS digital sample rate. Must be set to 0 Hz

before DCLK/DFS is removed.

31130â34406 Hz

1â4095

Left-Justified, I2S,

DSP (MSB on first

DCLK), or DSP

(MSB on second

DCLK)

8, 16, 20, 24 bits

0, 32000â

48000 Hz

Applicable

Devices

All

All except

Si4710-A10

All

All except

Si4710-A10

Rev. 0.8

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