8980 - SUPERSERVO SPINDLE & VOICE-COIL ACTUATION MANAGER/DRIVER

Allegro MicroSystems

8980 Datasheet Preview — Preview of 8980 PDF

Datasheet Details

Part number	8980
Manufacturer	Allegro MicroSystems
File Size	81.52 KB
Description	SUPERSERVO SPINDLE & VOICE-COIL ACTUATION MANAGER/DRIVER
Datasheet	8980_AllegroMicroSystems.pdf

8980 Product details

Description

ACTUATOR Servo-Demand DAC.A 12-bit DAC is provided to bridge the DSP “soft” domain to the analog hardware domain.The term “demand” refers to the distinction between the newly requested voice-coil current and the prior current being supplied.The DAC, operating in straight binary format, spans the full dynamic range between a large signal velocity and a precision position mode.The DAC output is updated synchronously with the notch functions to avoid the creation of aliasing products.Low-Pass

Features

and system diagnostics are provided via a serial interface under the direction of an external microcontroller. The large-scale integration and use of advanced DABiC™ (digital/analog-BiCMOS) merged technologies results in minimum power dissipation, minimum operating voltage requirements, and minimum external components. The spindle drive function incorporates a three-phase MOS power driver and a back-EMF sensing motor commutation scheme. Internal logic and analog circuitry provide complete start-.

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Other Datasheets by Allegro MicroSystems

8983 - SPINDLE & VOICE-COIL ACTUATION MANAGER/DRIVER

Published: Mar 22, 2005 |