SI3000PPT-EVB 데이터 시트보기 (PDF) - Silicon Laboratories

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SI3000PPT-EVB

EVALUATION BOARD FOR THE Si3000 WITH THE PARALLEL PORT INTERFACE

Silicon Laboratories 

Si3000PPT-EVB

Figure 1. Si30xxPPT-EVB Evaluation Software in the Audio Data Monitoring View

Audio Data Monitoring View

The audio data monitoring view is discussed in the

following sections.

Receive Audio Data of Channel#

Allows selection of channel to control and view. The

Audio Data Monitoring view allows the generation of

DAC data and the capture and display of ADC data.

Operation of the front panel in Line Monitoring view is

detailed in the following list. See Figure 1.

TX Control

 DAC Waveform: Selects the waveform to be

generated by the DAC. The waveform types are as

follows: dc, Sine, Square, Ramp, and .wav file.

 TX Gain (dB): Selects the transmit path gain/

attenuation.

 TX Mute: This function is not availabe on the

Si3000PPT-EVB

 Sampling Rate: This function is not availabe on the

Si3000PPT-EVB

 Amplitude: Sets the amplitude of the DAC waveform

in either volts or the units of DAC codes. The units

are determined by the Amplitude Units control.

 Frequency: Selects the frequency (Hz) of the

waveform to generate. The actual waveform

frequency may vary slightly from the entered value.

This variation is due to the requirement to fit an

integer number of samples into the transmit buffer.

The control is updated to reflect the actual waveform

frequency generated. The equation for calculating

Rev. 0.1

5

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