AD8328 datasheet(14/20 Pages) AD

14 / 20 page

AD8328

Rev. A | Page 14 of 20

RUNNING AD8328 SOFTWARE

To load the control software, go to Start, Programs,

CABDRIVE_28 or select the AD8328.exe file from the

installed directory. Once loaded, select the proper parallel

port to communicate with the AD8328 (see Figure 24).

Figure 24. Parallel Port Selection

CONTROLLING GAIN/ATTENUATION OF THE

AD8328

The SLIDER controls the gain/attenuation of the AD8328,

which is displayed in dB and in V/V. The gain scales 1 dB

per LSB. The gain code from the position of the SLIDER is

displayed in decimal, binary, and hexadecimal (see Figure 25).

Figure 25. Control Software Interface

TRANSMIT ENABLE AND SLEEP MODE

The Transmit Enable and Transmit Disable buttons select the

mode of operation of the AD8328 by asserting logic levels on

the asynchronous TXEN pin. The Transmit Disable button

applies Logic 0 to the TXEN pin, disabling forward transmission.

The Transmit Enable button applies Logic 1 to the TXEN pin,

enabling the AD8328 for forward transmission. Checking the

Enable SLEEP Mode box applies Logic 0 to the asynchronous

SLEEP pin, setting the AD8328 for SLEEP mode.

MEMORY FUNCTIONS

The Memory section of the software provides a way to alternate

between two gain settings. The X→M1 button stores the current

value of the GAIN SLIDER into memory, while the RM1 button

recalls the stored value, returning the gain SLIDER to the stored

level. The same applies to the X→M2 and RM2 buttons.

AD8328 Datasheet(PDF) 14 Page - Analog Devices