參數(shù)資料
型號: MB91302APFF-G-001-BNDE1
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 32-BIT, MROM, 68 MHz, RISC MICROCONTROLLER, PQFP144
封裝: 0.40 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù): 52/96頁
文件大?。?/td> 2641K
代理商: MB91302APFF-G-001-BNDE1
MB90520B Series
64
DS07-13707-5E
14. 8-bit D/A Converter
The 8-bit D/A converter performs R-2R D/A conversion with 8-bit resolution.
Two D/A converter channels with independent analog outputs are provided.
D/A converter functions
D/A converter theoretical output voltage
Note : DVCC voltage : D/A converter reference voltage. This must not exceed VCC.
Also, always ensure that DVSS is equipotential to VSS.
Function
D/A conversion time
The settling time is 12.5
s. This is independent of the machine clock.
Conversion method
R-2R conversion
Resolution
8-bit
Analog output pins
Two output pins are provided. Both pins can be used simultaneously.
Interrupts
None
D/A conversion trigger
Set the digital value in the D/A data register (DADR) , then enable D/A output in the
D/A control register (DACR) to start analog output from the D/A output pin.
EI2OS support
Not supported by the extended intelligent I/O service (EI2OS) .
D/A Data Register Setting
Theoretical Output Voltage Value
00H
0
/ 256 × DVCC voltage ( = 0 V)
01H
1
/ 256 × DVCC voltage
FEH
254
/ 256 × DVCC voltage
FFH
255
/ 256 × DVCC voltage
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