DSM VF-150 OEM Podręcznik użytkownika - Strona 4

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Description

The VF-150 OEM is a board mountable linear piezo amplifier module with an integrated 16-bit

digital to analog converter (DAC). This module is designed to be mounted directly to a

customer's printed circuit board.

The VF-150 OEM output voltage can be controlled in 3 ways:

1. An analog voltage can be connected to the analog input. This signal will be summed

with the DAC and amplified by a gain of about 58V/V. The default DAC voltage is 0V.

2. In the default configuration the DAC output voltage is controlled through an SPI

communication bus.

3. Optionally the DAC can be user configured to be connected to the onboard controller

with communications to the controller and the DAC through an asynchronous serial

protocol.

In all mode the output of the DAC and the analog input are summed at the input to the amplifier.

Only one of the inputs needs to be used to drive the amplifier. It is recommended that the analog

input be connected to ground if it is not used to reduce the risk of noise being picked up by the

input. A list of the serial command along with the communication protocol will be presented in a

later section.

Block Diagram of VF-150 OEM

Hardware Version V131028

114 Southeast Parkway Ct.

Ste 160

Franklin, TN 37064

Tel: 615/595-6665

Fax: 615/595-6610