IC-PD3948_14 Datasheet, PDF (10/12 Pages) IC-Haus GmbH – PHASED ARRAY SINE ENCODER

iC-PD 3948
PHASED ARRAY SINE ENCODER
C3
100nF
R6
R5
2.2k
2.2k
VP
SCL
24xx
VN^SDA
Disc
iC-TL85
R9
D3
47
C7
100nF
iC-PD3948
VCC
DPZ
DPC
VREF
PZ
NZ
VRSC
VRDC
DPSIN
DNC
DPCOS
DND
DNSIN
PSIN
NSIN
DNCOS
PCOS
NCOS
PC
DPD
NC
PD
ND
DNZ
GND
preliminary
Rev C1, Page 10/12
C2
C1
100nF
1μF
R1
1k
SCL
VDDS
VDD
D2
SDA ^I2C
Reverse
Polarity
ERR
Protection
iC-MSB
X4 ₊
PS
X6 -
NS
X3 ₊
PC
X5 _-
X1 ₊
NC
X2 _-
PZ
SIGNAL
ACO LEVEL
NZ
CONTROL
GNDS
GND
+5V
ERR
PSIN
NSIN
PCOS
NCOS
PZ
NZ
VN
C6
100nF
SCL
VDDS
VDD
I2C
SDA
Reverse
Polarity
Protection
iC-MSA
X4 ₊
X6 _-
X3 ₊
X5 _-
X1 ₊
X2 _-
C5
C4
100nF
1μF
ERR
PS
NS
PC
NC
PZ
AUTOMATIC
GAIN
NZ
CONTROL
GNDS
GND
TVS-Diode-Array
PC
NC
PD
ND
Figure 2: Application example motor feedback encoder utilizing iC-MSB and iC-MSA.
Sine square plus cosine square LED power controlling by iC-MSB maintains the differential 1 Vpp
signal of the S/C channel featuring 2048 CPR. The C/D channel with 1 CPR ensures its 1 Vpp
differential signal by automatic gain control. In this setup, operation at high rpm speed and beyond
iC-MSB’s cut-off frequency is possible.