A8980 Ver la hoja de datos (PDF) - Allegro MicroSystems
Número de pieza
componentes Descripción
Fabricante
A8980 Datasheet PDF : 8 Pages
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8980
SUPERSERVO™
SPINDLE & VOICE-COIL
ACTUATION MANAGER/DRIVER
ADDRESS MAP AND DATA BIT ASSIGNMENTS
Address Data
Word
Bit
Function
00H
0 – 3 Blanking Time
4 – 7 Commutation Delay Time
01H
0 – 5 Coast Time
6
Commutation Multiplexer
7
Not used at this time
02H
0 – 3 Startup Time
4 – 7 Watchdog Time
03H
0 – 7 Spindle-Demand DAC Current
Magnitude
8
Reverse Commutation Mode
04H
0 – 3 Spindle Slew Rate Control
4 – 6 Spindle Multiplexer
7
Not used at this time
05H
0 – 3 Spindle Transconductance Amp.
Bandwidth
4 – 6 Spindle Transconductance Amp.
Local Zero
06H
0 – 3 Internal 6.25 kHz Oscillator
Frequency Trim
4 – 7 Not used at this time
07H
0 – 7 Not used at this time
08H
0 – 11 Servo-Demand DAC Current
Magnitude
09H
0 – 7 Not used at this time
0AH
0–3
4
5
6–7
Low-Pass Filter Damping (Zeta)
Control
Not used at this time
Low-Pass Filter Reset Control
Not used at this time
0BH
0 – 3 Notch Depth (α3) Control
4 – 7 Not used at this time
Address Data
Word
Bit
0CH
0–3
4
5–7
0DH
0–4
5–7
0EH
0–4
5–7
0FH
0–3
4–6
7
10H
0–2
3–5
6–7
11H
0–7
12H
0–3
4–6
7
13H
0–2
3–5
6–7
14H
0–2
3
4
5–7
15H
0-2
Function
Notch Width (Zeta DZ3) Control
Notch Reset Control
Not used at this time
Low-Pass Filter Freq. Synth.
(Dn2) Control
Not used at this time
Notch Center Frequency
(Dn3) Control
Not used at this time
Actuator Bandwidth
(BWACT) Control
Actuator Zero (Damping) Control
Not used at this time
Retract Velocity Demand Voltage
Actuator Analog Multiplexer Input
Select
Not used at this time
Sleep Mode Manager
Fault Control Monitor
Programmable References
Voltage Select
Long Spindle Braking Delay
Analog Multiplexer-2 Selection
Digital Multiplexer Output
Selection
Not used at this time
Analog Multiplexer-1 Selection
Chopper Stabilization of LP &
Notch Filters
Disable actuator retract during
fault
Not used at this time
Actuator Power Voltage Amplifier
Deadband Trim
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