VOICE-RECORD-RD Silicon Laboratories Inc, VOICE-RECORD-RD Datasheet - Page 2

• Manufacturer Part Number: VOICE-RECORD-RD
• Description: KIT REF DESIGN VOICE RECORD F41X
• Manufacturer: Silicon Laboratories Inc

Specifications of VOICE-RECORD-RD

• Main Purpose: Audio, Voice Record/Playback
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: C8051F411-GM
• Primary Attributes: MCU, 87 Sec., 8 kHz,
• Secondary Attributes: A Keil Compiler and USB Debug Adapter are required
• Description/function: Audio D/A
• Product: Audio Modules
• For Use With/related Products: C8051F411
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 336-1315

VOICE-RECORD-RD
3. Using the Voice Recorder
The voice recorder can record up to 87 seconds of audio. The following steps describe how to use the voice
recorder:
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1. Connect the headphones to the speaker jack (labeled SPKR).
2. Connect the Universal Power Supply or 9 V battery to the board. The red power LED (PWR LED) will turn on.
3. Once only the red power LED is on, the record, playback, and erase features may be used:
4. After several idle seconds, the voice recorder will go into Suspend mode to conserve battery life and the red
The red record LED (REC) and green play LED (PLAY) may also turn on briefly.
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power LED will turn off. Press the record/play (O / >), ERASE, or RESET button at any time to wake from
Suspend. The record/play (O / >) or ERASE button must be released before the record, playback, or
erase features are available.
RECORD: Press and hold the record/play (O / >) button to record. The button must remain pressed
during the recording session.
Once the red LED is lit, the voice recorder is recording. The microphone is sensitive enough that you do not need
to speak directly into the microphone in order to be heard.
PLAY: Tap (press and immediately release) the record/play (O / >) button once to play back.
While the green LED is lit, the voice record is playing the recording. The playback may be stopped at any time by
tapping the button, or it may be allowed to continue until the end of the recording.
ERASE: Tap (press and immediately release) the ERASE button once to erase the current contents of
the voice recorder.
The PLAY and REC LEDs will turn on while the voice recorder is busy erasing the contents of the memory. When
the LEDs turn off, the voice recorder has finished erasing.
VOLUME:
The volume of the voice recorder may be changed at any time by turning the dial labeled VOL. Moving the dial
counter-clockwise (up) will increase the volume, and moving the dial clockwise (down) will decrease the volume.
Confidential Rev. 0.3