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| 型号： | EM6617TP28A |
| 英文描述： | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-EPSOIC T&R |
| 中文描述： | 微控制器 |
| 文件页数： | 27/67页 |
| 文件大小： | 824K |
| 代理商： | EM6617TP28A |
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EM6617
03/02 REV. C/442
Copyright
2002, EM Microelectronic-Marin SA
33
www.emmicroelectronic.com
10. 2-Channel ADC (8-bit digital converter)
The EM6617 contains one 8-bit ADC with 2 independent input channels. In addition one can choose also Vref
and Vgnd as ADC input. The control logic uses an internal analogue multiplexor to select the channel to be
converted. When data conversion is complete, indicated by a DATA VALID signal, the control logic saves the
converted value in the RegADCDataH and the Shadow Low registers. RegADCDataL registers is updated
when reading the RegADCDataH register. At the end of conversion an interrupt IRQADC is sent to the
P. The
architecture of the ADC is illustrated in Figure 25.
The ADC 8 bit contains
an inherent sample and
hold function : the input
voltage is sampled during
acquisition
phase
(2
clock cycles) and is held
until
the
end
of
conversion.
Total
conversion time is 10
clock cycles.
Figure 25. ADC 8 Bit Architecture
8-BIT CHARGE
REDISTRIBUTION
ADC CORE
4-Bit Internal Data Bus
RdHigh
IRQ
RdLow
RegADCDataL
RdLow
Shadow Low
RegADCDataH
RdHigh
4
SVref1/2Sel Start
Convert
Channel
select
Vgnd
VrefInt
Vref1
Vref2
Vref
Vin
Convert
Data[7 :1]
Data Valid
AIN
BIN
0
3
1
2
8
2
VDD
Vgnd
VDD
VSS
IRQADC
Ck[16]
Control
Logic
External
Figure 26. ADC 8 Bit Timing
Start Convert
ADC Clock
1
9
8
7
6
5
4
3
2
10
Data Valid
Re-sampling
8 clocks conversion
Sample&Hold
IRQADC
相关PDF资料 |
PDF描述 |
|---|---|
| EM6617TP28B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-EPSOIC T&R |
| EM6640SO18A | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-SOIC |
| EM6640SO18B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 10-DFN |
| EM6640TP16A | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 10-DFN |
| EM6640TP16B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EM6617TP28B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617WP11 | 制造商:EMMICRO 制造商全称:EM Microelectronic - MARIN SA 功能描述:Ultra Low Power Microcontroller with ADC AND EEPROM |
| EM6617WP27 | 制造商:EMMICRO 制造商全称:EM Microelectronic - MARIN SA 功能描述:Ultra Low Power Microcontroller with ADC AND EEPROM |
| EM6617WS11 | 制造商:EMMICRO 制造商全称:EM Microelectronic - MARIN SA 功能描述:Ultra Low Power Microcontroller with ADC AND EEPROM |
| EM6617WS27 | 制造商:EMMICRO 制造商全称:EM Microelectronic - MARIN SA 功能描述:Ultra Low Power Microcontroller with ADC AND EEPROM |
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