Datasheet

MAX3543 Evaluation Kit
Evaluates: MAX3543
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10) Maxim also provides a FactorySettings.ini file that
includes predefined MAX3543 register configura-
tions for different TV standards (DVB-T, DVB-C, PAL,
SECAM). Manually copy the FactorySettings.ini file
into the directory where the IC software is installed.
The path should be “C:\Program Files\Max3543\” or
similar.
11) Launch the IC control software.
12) Verify that the I²C write address setting in the EV
kit software (Options → I²C Write Address menu
item) matches the EV kit hardware configuration. By
default, the EV kit comes with no jumper installed
on the JP4 header. This corresponds to the address
setting of 0xC2.
13) Verify that the software shows “Board/USB-Online”
in a green box at the bottom of the window. If the
status is “OFFLINE-Click Here,” then verify all the
connections described above in steps 1 through 8.
14) Go to the Options → External IF Bandpass Filter
menu item and select the IF bandpass filter used at
the IFOUT1 output on the EV kit. Most of the EV kits
use a differential LC filter. It is important to select the
appropriate mode to ensure that the right IFOUT1
output driver (differential vs. single-ended) is used
to drive the bandpass filter.
15) Go to the Synth tab and set the REF FREQ to match
the crystal frequency (in MHz) on the EV kit. Most of
the EV kits use 16MHz crystals.
16) Set the IF FREQ to the desired value. Note that the
on-chip bandpass filter is centered at 36.15MHz,
so the IF FREQ should be set within ±0.2MHz of
36.15MHz.
17) Load the predefined factory settings to set the
MAX3543 registers to receive the desired TV
standard. For instance, to configure the device for
reception of DVB-T signals, choose the Factory
Settings → DVB-T menu item. Note that Maxim
provides predefined configurations for most of the
existing TV standards. If custom optimization is
desired, use these settings as a starting point.
Gain Measurement to the IFOUT_DTV
Port in DVB-T Mode
1) Connect the dual-output power-supply outputs
to the RFVGC and IFVGC terminals on the EV
kit. Adjust voltages at RFVGC and IFVGC to be
approximately +3V.
2) Load the predefined factory settings for DVB-T
mode by selecting the Factory Settings → DVB-T
menu item.
3) Enter the desired RF frequency (e.g., 666MHz) into
the RF FREQ text box in the RF Top tab.
Figure 1. USB Interface Board and MAX3543 EV Kit Connections
USB (TO PC)
VCC (+3.3V) GND
JU1 IN VDEV
POSITION
SHORT JP5
RFIN (50I)
DTV ATV
CONNECT TO ANALOG
DEMODULATOR
(SINGLE-ENDED LINE)
CONNECT TO DIGITAL OR
HYBRID DEMODULATOR
(DIFFERENTIAL LINE)
IFVGC
SHORT
JP3