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GENERAL DESCRIPTION

The SZA1010 or Digital Servo Driver 3 (DSD-3) consists of 1-bit class-D power drivers, which are specially designed for digital servo applications. Three such amplifiers are integrated in one chip, to drive the focus and radial actuators and the sledge motor of a compact disc optical system.

FEATURES

Servo functions

? 1-bit class-D focus actuator driver (4 ?)

? 1-bit class-D radial actuator driver (4 ?)

? 1-bit class-D sledge motor driver (2 ?).

Other features

? Supply voltage 5 V only

? Small package (SOT163-1)

? Higher efficiency, compared with conventional drivers, due to the class-D principle

? Built-in digital notch filters for higher efficiency

? Enable input for focus and radial driver

? Enable input for sledge driver

? 3-state input for radial driver

? Doubled clock frequency

? Differential outputs for all drivers

? Separate power supply pins for all drivers.