Vicom Systems FC-FC3 Bedienungsanleitung PDF herunterladen (Seite 62)

CONFIDENTIAL [AK8999A/AW/AD]

MS1600-E-00 2014/05

- 62 -

n) VTMP voltage adjustment (EEPROM name: VTMP)

Compensates the offset values for the AK8999A's internal temperature sensor and external

temperature sensor. Adjusts the values so that the difference between VTMP voltage and VREF

voltage is close to 0 mV (If VREF is 1005mV, adjust so that VTMP is also 1005mV).

The coarse adjustment (ETM[8:6]) is invalid when the internal temperature sensor is used

(ETMP[1:0] = 2h). The coarse adjustment is effective when the external temperature sensor is used

(ETMP[1:0] = 0, 1h).

ΔVTMP in the table below indicates a value varying with the setup values of the EEPROM. The ratio

is benchmarked to 1000mV (VREF ideal value) as 100% (Ratio = ΔVTMP/1000[mV]*100[%]).

Address : 11 hex D[5:0] = ETM[5:0]

ETM[5:0] Ratio ΔVTMP

Description

Dec Hex Bin (%) (mV)

-32 20 100000 +6.4 +64

：：：：：

-16 30 110000 +3.2 +32

：：：：：

-8 38 111000 +1.6 +16

：：：：：

-4 3C 111100 +0.8 +8

：：：：：

-1 3F 111111 +0.2 +2

0 00 000000 0.0 0 Default

1 01 000001 -0.2 -2

：：：：：

4 04 000100 -0.8 -8

：：：：：

8 08 001000 -1.6 -16

：：：：：

16 10 010000 -3.2 -32

：：：：：

31 1F 011111 -6.2 -62

Address : 10 hex D[6:4] = ETM[8:6]

ETM[8:6] Ratio ΔVTMP

Description

Dec Hex Bin (%) (mV)

4 4 100 Setup prohibited Setup prohibited

5 5 101 Setup prohibited Setup prohibited

6 6 110 +20.0 +200

7 7 111 +10.0 +100

0 0 000 0.0 0 Default

1 1 001 -10.0 -100

2 2 010 -20.0 -200

3 3 011 Setup prohibited Setup prohibited

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 68

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