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參數(shù)資料
| 型號： | HE83003 |
| 廠商： | King Billion Electronics Co., Ltd. |
| 英文描述： | 8-BIT MICRO-CONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件頁數(shù)： | 10/23頁 |
| 文件大?。?/td> | 226K |
| 代理商： | HE83003 |
King Billion Electronics Co., Ltd
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HE83003
HE80000 SERIES
September 8, 2004
This specification is subject to change without notice. Please contact sales person for the latest version before use.
10
V1.1
VOC
VOC[2]
0
0
1
1
VOC[1]
0
1
0
1
Output Function
All Disabled
VO
PWM
PWM+VO
PWMC register
DAC & PWM Data
Control
Bit 7
0
1
Bit 6
Bit 5
Bit 4
DAC and PWM output value
Bit 3
Bit 2
Bit 1
Bit 0
PWM O/P driver
Reserved
PWME
In the PWMC register, the PWMC[7] bit determines the written PWMC[6..0] value is PWM/DAC data or
commands. If the PWMC[1] is ‘0’, the PWMC[6..0] is stored into the data register, otherwise
PWMC[6..0] is stored into command register shown on the above diagram. The command register
controls the PWM output driver current and its enable/disable. If user want to enable the PWM function,
both VOC[2] and PWME bits shall be set to ‘1’.
The fast clock is used to provide as PWM driver time base, and user shall set the PWMC[7]=’1’ and
VOC[2]=’1’ to enable the PWM output. When the system enters into sleep or idle mode, it will
automatically turn off the voice device by clearing VOC[2:0] to ”000”. In order to activate voice output
again when the system returns and enters into normal mode, the related bits of VOC register need to be
set again.
Data=0x40h
Data=0x10h
Data=0x70h
subframe
PWM
When the DAC is used as sound generator, the bias & filter circuit is used for bias voltage setting and
waveform filter regulation and the DAC is output to the VO (Voice Output) pin and please see
application notes for detailed calculation example and application. The driving capability of DAC is
shown below.
Condition
Min.
2.5
Typ.
3
Max.
Unit
mA
VO/DAO
V
DD
=3V;VO=0~2V;Data=7Fh
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