ADNS-2030 View Datasheet(PDF) - Agilent Technologies, Inc
Part Name
Description
MFG CO.
'ADNS-2030' PDF : 36 Pages View PDF
The maximum value of the
shutter is dependent upon the
frame rate and clock frequency.
The formula for the maximum
shutter value is:
Max shutter value = clock freq – 2816
frame rate
For a clock frequency of 18 MHz,
the following table shows the
maximum shutter value. 1 clock
cycle is 55.56 nsec.
Frames/second
Max Shutter
Decimal
Hex
Shutter
Upper
Lower
2300*
5010
0x1392
13
92
2000*
6184
0x1828
18
28
1500
9184
0x23E0
23
E0
1000
15184
0x3B50
3B
50
500
33184
0x81A0
81
A0
* Note: To optimize tracking performance on dark surfaces, it is recommended that an adaptive frame rate based on shutter value
be implemented for frame rates greater than 1500.
Default Max Shutter
Frame_Period_Lower
Access: Read/Write
Address: 0x10
Reset Value: 0x20
Bit
7
6
5
4
3
2
1
0
Field
FP7
FP6
FP5
FP4
FP3
FP2
FP1
FP0
Frame_Period_Upper
Access: Read/Write
Address: 0x11
Reset Value: 0xd1
Bit
7
6
5
4
3
2
1
0
Field
FP15
FP14
FP13
FP12
FP11
FP10
FP9
FP8
Data Type: Sixteen bit 2’s complement word.
USAGE: Sets the frame rate. The frame period counter counts up until it overflows. Units are clock cycles.
clock rate
The formula is:
= counts
frame rate
(2’s complements hex)
For an 18 MHz clock, below are
the Frame_period values for
popular frame rates.
Frames/second
Counts
Decimal Hex
2’s comp
Frame_Period
Upper
Lower
2300*
7826
0x1E92
0xE16E
E1
6E
2000*
9000
0x2328
0xDCD8
DC
D8
1500
12000
0x2EE0
0xD120
D1
20
Default Frame Period
1000
18000
0x4650
0xB9B0
B9
B0
500
36000
0x8CA0
0x7360
73
60
Minimum Frame Period
*Note: To optimize tracking performance on dark surfaces, it is recommended that an adaptive frame rate based on shutter value
be implemented for frame rates greater than 1500.
Changing the frame rate results in
changes in the maximum speed,
acceleration limits, and dark
surface performance.
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