ADN4612-EVALZ User Guide UG-740
Rev. A | Page 7 of 15
Input Controls
RX EN
Select the EN check boxes to enable or disable the inputs. By
default, RX EN is disabled.
EQUALIZER EN
Select the EN check boxes to enable or disable the equalizer. By
default, EQUALIZER EN is enabled.
EQUALZIER EQP, EQA, and TOTAL EQ
Select the values, in decibels, from the drop-down menus for an
EQP (default: 0 dB) and EQA (default: 1 dB) boost. The TOTAL
EQ boxes summarize the total equalizer boost setting in decibels
(default: 1 dB).
XPT Connect Control
XPT CONNECT
Each output connects to any input. Choose which input connects
to the corresponding output from the drop-down menus. The
crosspoint connection state automatically updates upon selection.
(By default, INx connects to OUTx.)
Output Controls
TX EN
Select the check boxes to enable or disable the outputs. By
default, TX EN is disabled.
TX DRIVE CONTROL OUTPUT LEVEL (mV p-p Diff)
Click the drop-down menus and select an mV p-p differential
value to set the dc output level swing. The default of the TX
DRIVE CONTROL OUTPUT LEVEL box is 800 mV p-p
differential.
TX DRIVE CONTROL PRE-EMPHASIS BOOST (dB)
Select the decibel value in the drop-down menus to set the
output pre-emphasis boost. The maximum available pre-
emphasis boost decibel varies with the OUTPUT LEVEL
(mVp-p Diff) setting. The VTTO supply must be set to 3.3 V
for all pre-emphasis settings to work properly.
I2C Communication Bus Controls
DEVICE ADDRESS
The DEVICE ADDRESS drop-down menu selects the I2C
device address. The device address must match the
corresponding switch settings on the evaluation board (S2, S3).
The value is listed in hexadecimal format. The allowable values
are 0x88, 0x8A, 0x8C, and 0x8E.
ADDRESS
The ADDRESS box is the register address field. Values are
hexadecimal and only values 00 to FF are valid; the register
address field does not recognize 0x as a valid value.
DATA
The DATA field is the register data field. Values are hexadecimal.
The 0x prefix is not recognized during an I2C write operation;
valid values are 00 to FF. The result of a register read command
overwrites the text in this field and contains the 0x prefix. If a
register command is unsuccessful, the text “−0x3” appears in the
field. The DEVICE COMMUNICATION STATUS box indicates
if the software is successfully communicating to the ADN4612.
WRITE Button
The WRITE button initiates a single I2C register write command
using the device address, register address, and data values.
READ Button
The READ button initiates a single I2C register read command
using the device address and register address values. The I2C
read result is written to the DATA field. The result of a register
read command overwrites the text in this box and contains the
0x prefix.
Device Communication Status
The DEVICE COMMUNICATION STATUS box indicates if
the software is successfully communicating with the ADN4612.
The value CONNECTED indicates successful communication.
The value DISCONNECTED indicates unsuccessful
communication.
Possible device communication problems include
The USB cable detached from the I2C interface board or PC.
The I2C interface board detached from the ADN4612
evaluation board.
Reset Control
The RESET DEVICE button initiates a software reset of the
ADN4612, initializes the ADN4612 to the recommended
default settings, and restores the GUI to the default state. Click
RESET DEVICE after a power-up or a hardware reset to ensure
that the ADN4612 is in the correct default state. It can take
several seconds for the reset operation to complete. The progress
bar indicates when the reset operation is complete.
Exit Control
The EXIT GUI button exits the software program.
