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参数资料
| 型号： | EM22003 |
| 英文描述： | ACPI Regulator/Controller for Dual Channel DDR Memory Systems; Temperature Range: 0°C to 70°C; Package: 20-QFN |
| 中文描述： | EM22000系列-简单的语音合成器具有PWM直接驱动 |
| 文件页数： | 11/14页 |
| 文件大小： | 80K |
| 代理商： | EM22003 |
EM
EM
EM22000 SERIES
22000 SERIES
SIMPLE VOICE SYNTHESIZER
* This specification are subject to be changed without notice.
6
10.15.2001
Preliminary
NOTE
NOTE : For level with SAF3 active trigger mode, SAF3 is always enabled to issue the control output signal
in response to the playing trigger group.
If the output function is selected to be "FLASH", 3 flash styles can be selected by mask option. These flash
styles vary with control output pins as shown below:
Style
Function
Flash style
Description
available
pins
1
Regular flash
SAF1,SAF2
Output flash pulses of 3 Hz, 50% duty cycle
2
Flash inversely (INV)
SAF1,SAF2
If output types of SAF1 and SAF2 are both "flash", they can
be chosen to flash with opposite phase (INV) or synchronous
phase(non-INV) to each other by mask option.
3
Flash with volume
SAF3
Output flash pulses flash with voice volume
Besides, EM22000 series provides 2 output configurations of each control output signals which offer users
to achieve flexible application with external components. The two output configurations are shown below :
Type
Output configuration
Symbol
1
Active high, inactive low
HL
2
Active low,inactive high
LH
NOTE
NOTE : The above STOP pulse length 40 ms and FLASH rate 3 Hz are under 6.4 KHz sampling rate. If the
voice section is under 8k sampling rate, the STOP pulse length and the FLASH rate will be 32 ms and
4 Hz, respectively.
The option of control output signal corresponds to the sections in group m is :
GROUP M
SEC.1
SEC.3
SEC.2
SEC.3
SAF1:
ENABLE
DISABLE
ENABLE
SAF2:
ENABLE
DISABLE
ENABLE
SAF3:
ENABLE
DISABLE
ENABLE
When group m is playing, the output waveform is :
Vo
sec. 1
sec. 3
sec. 2
sec. 3
SAF 1
SAF 2
SAF 3
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