Quick Start Procedure - Analog Devices Linear DC1366B Demo Manual

DEMO MANUAL DC1366B

QUICK START PROCEDURE

Figure 1 shows the basic setup. The LTC4266 requires
two power supply rails: V
(nominally –54V). The V
DC590 board or an external bench supply.
When running QuikEval on a Windows computer, the
DC590 is used to interface a USB port on the PC to the
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I C bus on the DC1366B. The DC590 also provides opto-
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isolation of the I C bus, and an isolated 3.3V supply to run
the LTC4266; the user need only provide the V
Alternatively, the user can omit the DC590 and connect an
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I C master device to the DC1366B. If the DC590 is omitted
then a bench power supply must provide V
For applications where I
LTC4266 features an AUTO mode allowing it to operate
completely autonomously.
Choose one of the setup procedures shown on the next
page, depending on whether or not the QuikEval GUI ap-
plication software is required.
Setup Procedure to Run the QuikEval GUI Software
1. Install the GUI software on the PC according to the
instructions in the README.txt file included with the
GUI software.
2. On the DC590:
a. Set both sides (ISO and SW) of JP5 to ON.
b. Set JP6 to 3.3V.
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(nominally 3.3V) and V
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supply can be provided by a
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supply.
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.
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C control is not required, the
3. Connect the DC590 to the PC with a standard USB A-B
cable.
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a. Verify the computer recognized the USB device.
(The first time the DC590 is connected the Hardware
Wizard may ask for help to locate the driver. Direct
it to the location specified in the README.txt that
came with the GUI software.)
b. Verify the ISO PWR LED on the DC590 is lit.
4. On the DC1366B board:
a. Set JP5 to the USB V
b. Set JP3 to the TIE position.
c. Set JP4 (AUTO) to the HI position.
d. If midspan operation is desired set JP2 to HI, for
endpoint set to LO.
5. Connect the DC590 to the DC1366B with the 14-con-
ductor ribbon cable supplied with the DC1366B. Verify
the V LED on the DC1366B is lit.
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6. Before connecting the main power supply to the
DC1366B verify the voltage is between 51V and 57V,
and that the main supply is turned off.
7. Connect the main power supply to the DC1366B with
two banana patch cords as shown in Figure 1. Verify
the polarity is correct before turning on the power;
positive goes to RTN and negative to V
8. Turn on the main power supply and verify the V
on the DC1366B is lit.
9. Connect PDs to any of the ports on the OUT to PD
side of the DC1366B and verify they turn on by the
respective OUTn LED.
10. Launch QuikEval.
position.
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.
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LED
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Rev B