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SI4827-DEMO датащи(PDF) 9 Page - Silicon Laboratories |
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SI4827-DEMO датащи(HTML) 9 Page - Silicon Laboratories |
9 / 16 page Si4827-DEMO Rev. 0.1 9 4.2. FM/AM/SW Radio Mode In Time Mode, when a long press (hold time > 1s) on the POWER/BAND button or when the alarm time is reached, the device will enter FM/AM/SW Mode. The LCD displays the following information: band indicator, band frequency indicator, and sleep indicator in case radio is automatically turned on by the alarm. The DEMO board display in FM/AM/SW Mode is illustrated in Figure 3. Figure 3. LCD display in FM Radio Mode The DEMO board provides two methods to select the radio band. One is to use the slide switch S2. The other is to use the POWER/BAND push button. S14 determines which method is in use. The DEMO board uses the keyboard to configure the band property. Refer to Section "4.2.1. MCU Setting Band Property” for the operation details for setting the band property using the keypad. To operate the DEMO board, follow these procedures: 1. According to the desired radio band selection method, set S14 to use slide switch or push button. 2. Hold the POWER/BAND button (hold time > 1s) or when the alarm time is reached, the device will enter FM/AM/SW Mode. 3. Use slide switch S2 or press the POWER/BAND push button to select the desired band. 4. Refer to Section "4.2.1. MCU Setting Band Property” or section "4.2.2. MCU Setting Radio Working Mode” to reconfigure the band property or radio working mode if necessary. 5. Rotate the tuning wheel and find the desired radio station with the help of the LCD display and/or tuning indicator D1. 6. Rotate the volume control wheel VR2 and/or press the DOWN/VOL- or UP/VOL+ button to get a comfortable volume. Press the BASS/TMR or TREBLE/AL button to get the desired bass/treble level. Note: For FM listening, the earphone cable must be connected to the board when S12 is set to HP ANT or an external antenna must be connected to the BNC connector when S12 is set to BNC. For AM listening, the ferrite antenna must be connected to the board and the S11 is set to Ferrite before turning on the radio or switching the band to AM. |
Аналогичный номер детали - SI4827-DEMO |
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Аналогичное описание - SI4827-DEMO |
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