ISL54205BEVAL1Z Intersil, ISL54205BEVAL1Z Datasheet - Page 4

• Manufacturer Part Number: ISL54205BEVAL1Z
• Description: EVALUATION BOARD FOR ISL54205B
• Manufacturer: Intersil

Specifications of ISL54205BEVAL1Z

• Main Purpose: Interface, Analog & Digital Switch
• Embedded: No
• Utilized Ic / Part: ISL54205
• Primary Attributes: 2 x SPDT Audio & USB Switch
• Secondary Attributes: 2.7 V ~ 3.6 V Supply
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

USB Mode Operation
ISL54205BEVAL1Z Board Schematic
Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to
verify that the Application Note or Technical Brief is current before proceeding.
4. You can observe the audio signals at the output of the IC
1. Turn OFF audio stereo source.
2. Remove headphone from J7 Headphone Jack.
3. Connect USB cable from host (PC computer) to the USB
4. You should now be able to send and receive data
5. You can observe the D- and D+ USB digital signals on an
6. Remove the 0Ω resistors R
on an oscilloscope or audio analyzer by using the J8 and
J9 BNC connectors. Connect to J8 for left audio and J9
for right audio.
“A” type receptacle, J1 (USB TO HOST). You will now be
in USB mode (5.5Ω USB switches are ON).
between the host and USB device.
oscilloscope or other test equipment by connecting to the
J8, J14, J9 and J15 BNC connectors. Connect to J8/J14
for D- signal and to J9/J15 for D+ signal. The V
voltage from the host can be monitored by connecting a
voltmeter at the J13 BNC connector.
the performance (i.e. eye diagram, etc.) of the high speed
USB signal. Removal of these resistors disconnects the
headphone jack (J7) and BNC connectors (J8, J9, J14,
J15) from the USB differential lines. These components
when connected will degrade the USB signal and will not
HEADPHONE
USB
TO
HOST
JACK
COM-
COM+
A
J8
J9
J13
J7
4
5 4 3
5 4 3
3
VBUS
J1
1
1
2
For information regarding Intersil Corporation and its products, see www.intersil.com
MOUNT
MOUNT
2
1
1
4
3
5
2
2
1
4
1
, R
TP1
2
, R
COM1
J10
TP6
3
VDD
1
, R
VDD
1
1
JP2
DNP
COM2
R5
4
when evaluating
A
2
0.1UF
10UF
TP7
C1
C2
Application Note 1483
GND
1
2
3
4
BUS
1
2
46
1
3
J11
PACKAGE
10 PIN
U1
QFN
9
8
7
9
8
6
7
R6
0
R
1
TP2
If you disconnect the USB cable from J1, the IC will return to
Audio mode. You can now plug the headphone set into the
headphone jack. Turn the audio source ON to once again
play music.
Test Points
The board has various test points for ease of connecting
probes to make measurements. The test points available are
described in Table 1.
L
DESIGNATOR
TP7, TP8, TP9
R7
0
D-
+
TP2, TP6,
1
TP4
1
be there in an actual application. Note: R
located on the underside of the board.
TP5
TP3
TP1
TP3
TP4
TP5
JP1
1
100UF
100UF
C3
C4
TP8
1
JP1
V
Ground Test Point
V
Audio Left Input Test Point
Audio Right Input Test Point
D-/D+ Differential Probe Connection - USB Device
Side of Switch
DD
BUS
2
A
TP9
test point
Test Point
1
1
TABLE 1.
2
2
D-
D+
3
3
4
4
A
A
5
5
DESCRIPTION
J14
J15
A
5
1
2
3
4
6
MOUNT
MOUNT
1
J2
1
2
1
1
2
1
2
J12
2
3
3
3
3
4
4
4
4
CTRL
5
5
USB
TO
DEVICE
J3
J5
J4
J6
AUDIO LEFT
AUDIO RIGHT
3
and R
July 1, 2009
4
AN1483.0
are