4
AN1330.0
June 13, 2007
Using The Board (Refer to Figure 2)
Lab Equipment
The equipment, external supplies and signal sources
needed to operate the board are listed below:
1. +3.3V to +5V DC Power Supply
2. +5V DC Power Supply
3. High-Speed USB device (i.e. USB memory stick, MP3
Player, etc.)
4. Full-Speed USB device (i.e. USB memory stick, Mouse,
etc.)
5. Computer with 2.0 High-Speed USB port
6. Standard USB cable
7. Logic Controller
Initial Board Setup Procedure
1. Attach the main evaluation board to a DC power supply
at J4 (VDD) and J5 (GND). Positive terminal at J4 and
negative terminal at J5. The supply should be capable of
delivering 3.3V to 5V and 100µA of current. Set the
supply voltage to 3.3V.
2. Connect a DC power supply at J8 (VBUSHS) and J9
(VBUSFS). Positive terminal at J8 and J9 and negative
terminal at J5 (GND). The supply should be capable of
delivering 5V and
100mA of current. Set the supply
voltage to 5V. This supply will provide 5V at the V
BUS
pin
of the USB “A” type connectors, J8 and J9.
3. Connect a high-speed USB device at USB connector J2
and connect a full-speed USB device at USB connector
J3. These connectors are located on the right under-side
of the evaluation board.
4. Drive the EN control pin LOW to open all switches of the
ISL54200 IC.
5. Connect USB cable from host (PC computer) to the USB
“B” type receptacle, J1 (USB TO HOST).
Full-Speed Device Operation
1. Apply a logic LOW to the IN pin.
2. Apply a logic HIGH to the EN pin.
3. You should now be able to send and receive data
between the computer and the full-speed USB device.
4. To disconnect the full-speed device from the computer
take the EN pin LOW.
High-Speed Device Operation
1. Apply a logic HIGH to the IN pin.
2. Apply a logic HIGH to the EN pin
3. You should now be able to send and receive data
between the computer and high-speed USB device.
+3.3V
DC POWER
SUPPLY
ISL54200EVAL1Z EVALUATION BOARD
VDD
GND
FIGURE 2. BASIC EVALUATION TEST SETUP BLOCK DIAGRAM
J1
U1
+
-
USB TO HOST
J3
COMPUTER
USB PORT
J7
USB HIGH-SPEED DEVICE
J2
JP2
JP1
EN
J6
IN
J4
J5
USB
TO
HIGHSPEED
DEVICE
JP3
J9
VBUSFS
J8
VBUSHS
JP4
JP5
USB FULL-SPEED DEVICE
+5V
DC POWER
SUPPLY
+
-
LOGIC CONTROL
Note: Disconnect the +5V power supply connected to J8 and J9 when powering through Host Controller Bus.
USB
TO
HIGHSPEED
DEVICE
Application Note 1330
