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 Ω)

• 1-bit class-D radial actuator driver (4 Ω)

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

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.