Pin Function (cont)
Pin Number Pin Name
26
Index (+) input
27
Index (–) input
28
FG (+) input
Function
Index amp (+) input terminal
Index amp (–) input terminal
FG amp (+) input terminal
HA13536F
Pin Voltage
1.4 V Min,
VCC – 0.5 V Max
1.4 V Min,
VCC – 0.5 V Max
DC bias 1.6 V Typ
External Parts
Part Number
Recommended Value Purpose
R2
—
Integration constant
R101
—
Hall bias
R102
—
Index hall bias
Rnf
—
Current detection and limitation
Rt1
0 to 50 kΩ
Index burst adjustment
Rt2
100 kΩ
Index pulse width setting
C1, C2
—
Integration constants
C101
≥ 0.1 µF
Power supply bypass
C102
0.1 µF
AGC filter
C103
0.47 µF
FG amp. coupling
C104
0.1 µF
Bias
C105
≥ 0.1 µF
Bias
C106
0.1 µF
Phase compensation
Ct
0.1 µF
Index setting
Notes: 1. Determine the integration constants from the following formulas:
ωO ≤
2πfFG
20
(rad/s)
1
R2 = 9.55
Jω ONO.Rnf
KTGctl Icp
(Ω)
C1 =
1
10
1
ω OR2
(F)
C2 = 10C1
(F)
Notes
1
2
3
1
4
5
5
7
4
3, 6
5