LG G4F-DA2V - Page 8

Chapter 1. INTRODUCION
1 - 3
Digital/analog conversion module allows digital value of the CPU to be converted into an analog value
and to be output externally. Digital input value of 0 leads to analog output value of 0V and 4000 leads
to 10V. Digital input value of 1 is equal to 2.5mV.
2) Voltage output - G4F-DA3V/G4F-DA2V/G6F-DA2V
[Fig 1.6] D/A conversion characteristics(Voltage output)
Digital/analog conversion module allows digital value of the CPU to be converted into an analog value
and to be output externally. Digital input value of 0 leads to analog output value of -10V and 4000 leads
to10V. Digital input value of 1 is equal to 5mV.
3) Current output – G3F-DA3I/G4F-DA3I/G4F-DA2I/G6F-DA2I
[Fig 1.7] D/A conversion characteristics(Current output)
On current output, digital value of 0 is to be converted into 4mA and 4000 into 20mA. Digital input of 1 is
equal to 4 ㎂.
Analog Output Current
20
㎃
12 ㎃
4
㎃
0
2000 4000
Digital Input Value
20042000 2001 2002 2003
Digital Input
Analog Output Current
2005
12.004
㎃
12.000㎃
4
㎂
Analog Output Voltage
10V
0V
-
10V
0
2000 4000
Digital Input Value
2004
2000
2001
2002
2003
Digital Input
Analog Output Voltage
2005
0.005V
0V
5
㎷