DK-RV-1.8-TRK-33 austriamicrosystems, DK-RV-1.8-TRK-33 Datasheet - Page 11

• Manufacturer Part Number: DK-RV-1.8-TRK-33
• Description: EVAL KIT SQUIGGLE MOTOR + SENSOR
• Manufacturer: austriamicrosystems
• Series: SQUIGGLE®, TRACKER™r

Specifications of DK-RV-1.8-TRK-33

• Main Purpose: Power Management, Motor Control
• Utilized Ic / Part: SQL-RV-1.8-6-12, NSE-5310, MC-3300-RV, NSD-2101
• Primary Attributes: Linear Motor, Driver and Position Encoder
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Embedded: -
• Secondary Attributes: -

NSD-2101
Data Sheet - D e t a i l e d D e s c r i p t i o n
7.6 Control Register
The control register is used to trigger frequency calibration as well as to select and enable the drive phases.
Table 9. Control Register
7.7 Period Counter
The period counter is used to define the switching frequency of the motor. The pulse period is generated by dividing the internal VCO clock
frequency by the given period counter value. The MSB in the high byte of the pulse counter (p) is used as the MSB for the period counter.
At 25MHz clock a decimal period counter value of 125 gives an output frequency of 200 kHz. A period counter value of 126 results in a switching
frequency of 198.41 kHz. This is equal to a maximum frequency step of 1.59 kHz. The frequency resolution gets better for lower switching
frequencies assuming a fixed VCO clock frequency.
Table 10
VCO clock frequency. The switch frequency is given as:
Table 10. Period Counter Values
www.austriamicrosystems.com/NSD-2101
Control Flag Mask
lists out few examples to define period counter and output switching frequency relationship. The values are given for 25MHz typical
1000 0000
0100 0000
0010 0000
0001 0000
0000 1000
0000 0100
0000 0010
0000 0001
Period Counter Value
0 1001 0001
0 1010 0110
0 0111 1101
0 1010 0111
1 1111 0100
0 0111 1110
1 1111 0011
CN[1]
CN[0]
Abbr
PS[1]
PS[0]
P1
P2
f
D
= 25MHz / period counter value
Revision 0.4
200.00
198.41
150.60
149.70
172.4
50.10
50.00
Typ
Default
0
1
1
0
0
0
1
1
Reserved (leave 0)
Phase Select for sensing: PS[1] PS[0]:
00=None
01=Phase1
10=Phase2
11= Both Phases
Reserved (leave 0)
Calibrate Now: CN[1] CN[0]:
00=None
01=Incremental
10=Sweep
11=reserved
Enable Phase1
Enable Phase2
Description
Unit
kHz
kHz
kHz
kHz
kHz
kHz
kHz
(EQ 1)
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