Vicom Systems FC-FC3 Manual de usuario descargar pdf (Pagina 48)

CONFIDENTIAL [AK8999A/AW/AD]

MS1600-E-00 2014/05

- 48 -

a.2) Offset voltage fine adjustment (OCF)

The offset voltage is adjusted finely.

The offset adjustment voltage varies ratiometrically with respect to the supply voltage.

The ratio in the table below is benchmarked to a VOUT output of 4800mV (@VDD: 5V) as 100%

(Ratio = (Offset voltage @VDD: 5V)/4800[mV]*100[%]).

Address : 01hex D[7:0] = EOCF[7:0]

EOCF [6:0] Ratio VDD:3V, 3.3V VDD:5V

Description

Dec Hex Bin (%)

EOCF

[7] = 0

(mV)

EOCF

[7] = 1

(mV)

EOCF

[7] = 0

(mV)

EOCF

[7] = 1

(mV)

0 00 0000000 0 0 0 0 0 Default

1 01 0000001 0.17 4 -4 8 -8

：：：：：：：：

15 0F 0001111 2.50 60 -60 120 -120

16 10 0010000 2.67 64 -64 128 -128

：：：：：：：：

31 1F 0011111 5.17 124 -124 248 -248

32 20 0100000 5.33 128 -128 256 -256

：：：：：：：：

63 3F 0111111 10.50 252 -252 504 -504

64 40 1000000 10.67 256 -256 512 -512

：：：：：：：：

126 7E 1111110 21.00 504 -504 1008 -1008

127 7F 1111111 21.17 508 -508 1016 -1016

b) Output span voltage adjustment (EEPROM name: SCR, SC)

The span voltage is adjusted.

The magnification in the table below is benchmarked to a VOUT output of 4800 mV (@VDD: 5V) as 100%

(Ratio = (Output voltage @VDD: 5V)/4800[mV]*100[%]).

The output and sensitivity describes the adjustable output voltages with the assumed reference output

(2400mV@VDD: 3V, 4800mV@VDD: 5V) when ESC[7:0] = 0 dec.

b.1) Output span voltage coarse adjustment (EEPROM name: SCR)

The output span voltage is adjusted coarsely.

Address : 00 hex D[7] = ESCR[0]

D[7:0] Symbol Mode setup

D[7] ESCR[0] Output span voltage coarse adjustment

0 SCRH 3.0x (1.57x to 3.0x) (defult)

1 SCRL 1.8x (1.1x to 1.8x)

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 67 68

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Vicom Systems FC-FC3 Manual de usuario Pagina 48

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