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參數(shù)資料
| 型號： | MSM6688DEMO Board |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | DEMO(ADPCM固體記錄器(DEMO)) |
| 中文描述： | 演示（差分PcM固體記錄器（演示）） |
| 文件頁數(shù)： | 2/11頁 |
| 文件大?。?/td> | 213K |
| 代理商： | MSM6688DEMO BOARD |
Semiconductor
2/11
MSM6688 DEMO BOARD
3.
Use dip switch VDS to specify whether to initiate with voice.
OFF:
Normal mode where recording is not initiated with voice
ON :
Voice initiation
Voice initiation requires the use of a regulated power supply instead of a battery. When a
battery is used, the voltage variation of several mV during the start of recording is amplified
and, thus, results in voice detection.
Note:
4.
Turn off dip switch ROM.
OFF:
Sets up the recording and playback mode.
ON :
Sets up the ROM playback mode.
5.
Use dip switches RSL1 and RSL2 to set the number of serial registers to be connected
externally.
OFF
OFF
1
RSL2
RSL1
Number of serial registers
OFF
ON
2
ON
OFF
3
ON
ON
4
6.
Turn on dip switch MSL1 and turn off MSL2.
7.
Use dip switches SAM1 and SAM2 to select the sampling frequency.
SAM2
OFF
OFF
ON
ON
Sampling frequency
f
OSC
/1024 (4.0 kHz)
f
OSC
/768 (5.3 kHz)
f
OSC
/640 (6.4 kHz)
f
OSC
/512 (8.0 kHz)
SAM1
OFF
ON
OFF
ON
*
A value in parentheses is applied when f
OSC
is 4.096 MHz.
8.
Use dip switch 4/3B to select the bit rate.
OFF:
3-bit ADPCM
ON :
4-bit ADPCM
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