ISL54402EVAL1Z Intersil, ISL54402EVAL1Z Datasheet - Page 4

• Manufacturer Part Number: ISL54402EVAL1Z
• Description: EVALUATION KIT FOR ISL54402
• Manufacturer: Intersil

Specifications of ISL54402EVAL1Z

• Main Purpose: Interface, Analog & Digital Switch
• Embedded: No
• Utilized Ic / Part: ISL54402
• Primary Attributes: 2 x SPDT Audio & USB Switch
• Secondary Attributes: 1.8 V ~ 5.5 V Supply
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Using the Board (
Lab Equipment
The equipment, external supplies and signal sources
needed to operate the board are listed below:
Initial Board Setup Procedure
1. +2.7V to 5.5V DC Power Supply
2. Stereo Audio Source (MP3/Radio/CD Player) or Audio
3.
4. Two Standard USB Cables
5. Computer with USB port
6. USB Device (i.e. Printer, USB Memory Stick, MP3 Player
1. Insert the daughter board with mounted IC into the dip
2. If evaluating the ISL54400 part and you want to use the
Generator
32Ω
with USB Port)
socket on the main board. Verify that the daughter board
is oriented in the socket correctly. The pin 1 dot on the
daughter board needs to be lined up with the pin 1
designator on the main evaluation board.
VTERM output and the 1.5k
a jumper at JP1. For a USB full-speed device (12Mb/s)
connect jumper from middle post to left post. For a USB
low-speed device (1.5Mb/s) connect jumper from middle
post to right post. If the VTERM output is not going to be
used leave the JP1 jumper un-populated. The jumper
Computer
Headphone Set or Audio Analyzer/Oscilloscope
USB Port
Refer to Figure 2
4
Ω
resistor on the board install
FIGURE 2. BASIC EVALUATION TEST SETUP BLOCK DIAGRAM
Headphone
Jack
HOST
USB
To
)
J8
J1
J7
J13
Application Note 1255
J9
ISL5440X EVALUATION BOARD
J10
VDD
DC POWER
+
SUPPLY
+3.0V
U1
-
R1
ISL54400 and ISL54401 Audio Mode Operation
GND
J11
3. Attach the main evaluation board to a DC power supply
4. Connect the stereo audio source left channel to J3 RCA
5. Connect the USB device to the USB “B” type receptacle,
1. Install 32
2. Turn the audio source ON. You should hear the music in
3. You can observe the audio signals on an oscilloscope or
C3
C4
JP1
should also be un-populated when evaluating the
ISL54401 and ISL54402 ICs.
at J10 (VDD) and J11 (GND). Positive terminal at J10 and
negative terminal at J11. The supply should be capable of
delivering 2.7V to 3.6V and 100
supply voltage to 3V.
connector or J5 BNC connector and right channel to J4
RCA connector or J6 BNC connector.
J2 (USB TO DEVICE).
USB cable should be connected at the J1 (USB TO
HOST) connector. You will now be in Audio mode (1
audio switches are ON and power to IC is from V
supply).
the headphones.
audio analyzer by using the J8 and J9 BNC connectors.
Connect to J8 for left audio and J9 for right audio. The
board also contains varied test points (TP1-TP9 and
JP2-JP3) for making test equipment connections. Refer to
eval board schematic and Board Component Definitions
on page 3 for definition of the various test points.
J6
J5
J14
Audio Right
J15
Audio Left
J12
Ω
Device
J3
J4
J2
headphone in the headphone jack, (J7). No
USB
To
L
R
USB Device
µA
Audio
Source
of current. Set the
USB Port
July 19, 2006
DD
AN1255.0
Ω