Delta Tau GEO BRICK LV User Manual
Geo Brick LV User Manual
PinOuts and Software Setup
43
Setting up Pulse and Direction Output PFM (J9)
Differential Pulse And Direction
Single Ended Pulse And Direction
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
2
5
PULSE
FREQUENCY
DEVICE/
AMPLIFIER
PULSE+
PULSE-
DIR+
DIR-
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
2
5
PULSE
FREQUENCY
DEVICE/
AMPLIFIER
PULSE+
DIR+
COM
Using the Delta Tau Calculator or referring to the Turbo Software Reference Manual, the desired
maximum PFM Frequency and pulse width can be chosen.
maximum PFM Frequency and pulse width can be chosen.
Step1
Step2
Results
Step 1: Choose Max PFM clock by changing the PFM clock divider. Click on calculate to see results.
Step 2: Choose PFM Pulse width by changing I6804. Click on calculate to see results.
For a PFM clock range 0-20 KHz, and a pulse width of ~20 μsec:
I6803=2290
; PFM Clock divider equal to 6
I6804=13
; PFM Pulse Width Control equal to 13