Справочник Пользователя для Delta Tau GEO BRICK DRIVE
Geo Brick Drive User Manual
Pinouts and Software Setup
51
Setting up the Analog Output (J9)
Differential Output
Single-Ended Output
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
Analog
Device DAC-
DAC+
DAC Output
±10VDC
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
DAC Output
±10VDC
Analog
Device
DAC
COM
The analog output out of J9 is a (12-bit) filtered PWM signal, therefore a PWM frequency in the range of
30-36 KHz and a PWM deadtime of zero are suggested for a good quality analog output signal (minimum
ripple). A fully populated Brick can have one of three gates generating the clocks:
30-36 KHz and a PWM deadtime of zero are suggested for a good quality analog output signal (minimum
ripple). A fully populated Brick can have one of three gates generating the clocks:
Servo IC 0
Servo IC 1
MACRO IC 0
I19 specifies which gate is the clock source master. I19 is equal to 7007 by default indicating that Servo
IC 0 is the master gate. However, the analog output on J9 is generated from MACRO IC 0.
IC 0 is the master gate. However, the analog output on J9 is generated from MACRO IC 0.
The relationship between the PWM clock frequency of the clock-receiving gate and the clock-generating
gate should always be respected in such a way that:
Where n is an integer
Examples:
With Servo IC 0 sourcing the clock at default settings (4.5 KHz PWM), the following are suggested
MACRO IC 0 clock settings which would provide a good analog output signal:
With Servo IC 0 sourcing the clock at default settings (4.5 KHz PWM), the following are suggested
MACRO IC 0 clock settings which would provide a good analog output signal:
Default Servo IC 0
Clock Settings
Resulting
Frequencies KHz
MACRO IC 0
Clock Settings
Resulting
Frequencies KHz
I7000=6527
I7001=0
I7002=3
I7002=3
I10=3713991
PWM
PHASE
SERVO
4.5
9
2.25
I6800=816
I6801=7
I6802=3
I6804=0
I6802=3
I6804=0
PWM
PHASE
SERVO
PWM
PHASE
SERVO
PWM
Deadtime
36
9
2.25
0
Note that n=8 in this case
With Servo IC 0 sourcing the clock at enhanced clock settings (9.0 KHz PWM), the following are
suggested MACRO IC 0 clock settings which would provide a good analog output signal:
Servo IC 0
Clock Settings
Resulting
Frequencies KHz
MACRO IC 0
Clock Settings
Resulting
Frequencies KHz
I7000=3275
I7001=0
I7002=3
I7002=3
I10=1863964
PWM
PHASE
SERVO
9
18
4.5
I6800=816
I6801=3
I6802=3
I6804=0
I6802=3
I6804=0
PWM
PHASE
SERVO
PWM
PHASE
SERVO
PWM
Deadtime
36
18
18
4.5
0
Note that n=4 in this case