AK8996 Datasheet, PDF (67/74 Pages) Asahi Kasei Microsystems – Pressure Sensor Interface IC

[AK8996/W]
5.1.5) Output Reference Voltage and Pressure Judge Threshold Setup Register
r) Output reference voltage adjustment (Register names: LVR, LVF)
Rough adjustment should be performed first, followed by a fine adjustment for the output reference
voltage. The content of the adjustment registers is shown here.
r-1) Output reference voltage rough adjustment (LVR)
The output reference voltage is coarsely tuned.
The adjustment voltage varies ratiometrically with respect to the supply voltage.
Address: 1B hex D[4:0]=ELVR[10:6]
ELVR[9: 6]
VO pin
VOUT pin
ELVR ELVR
Dec Hex Bin [10]=0 [10]=1
ELVR
[10]=0
ELVR
[10]=1
Comments
(*VDD) (*VDD)
0 0 0000 0.000 0.000
(*VDD)
0.000*OG ^Note)
(*VDD)
0.000*OG
Default
1 1 0001 -0.026 +0.026
-0.026*OG
+0.026*OG
2 2 0010 -0.052 +0.052
-0.052*OG
+0.052*OG
3 3 0011 -0.078 +0.078
-0.078*OG
+0.078*OG
4 4 0100 -0.104 +0.104
-0.104*OG
+0.104*OG
5 5 0101 -0.130 +0.130
-0.130*OG
+0.130*OG
6 6 0110 -0.156 +0.156
-0.156*OG
+0.156*OG
7 7 0111 -0.182 +0.182
-0.182*OG
+0.182*OG
8 8 1000 -0.208 +0.208
-0.208*OG
+0.208*OG
9 9 1001 -0.234 +0.234
-0.234*OG
+0.234*OG
10 A 1010 -0.260 +0.260
-0.260*OG
+0.260*OG
11 B 1011 -0.286 +0.286
-0.286*OG
+0.286*OG
12 C 1100 -0.312 +0.312
-0.312*OG
+0.312*OG
13 D 1101 -0.338 +0.338
-0.338*OG
+0.338*OG
14 E 1110 -0.364 +0.364
-0.364*OG
+0.364*OG
15 F 1111 -0.390 +0.390
-0.390*OG
+0.390*OG
Note) OG: Indicates the value of the BUF gain (Register name: BUFG) being set.
MS1055-E-02
67
2011/12