ISL54211EVAL1Z Intersil, ISL54211EVAL1Z Datasheet - Page 5

• Manufacturer Part Number: ISL54211EVAL1Z
• Description: EVAL BOARD 1 FOR ISL54211
• Manufacturer: Intersil

Specifications of ISL54211EVAL1Z

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

If you disconnect the USB cable from J1 and take the IN pin
LOW, the IC will return to Audio mode. You can now plug the
headphone set into 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 2.
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.
DESIGNATOR
6. You can observe the D- and D+ USB digital signals on an
7. Remove the 0 Ω resistors R1, R2, R3, R4 when
oscilloscope or other test equipment by connecting to the
J8, J14, J9 and J15 BNC connectors or various test
points located on the board (see Test Points page 5).
evaluating the signal quality (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. These components will not be there in an
actual application.
TP1
TP2
TP3
TP4
TP5
JP1
JP2
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
D-/D+ Differential Probe Connection - COM Side of
Switch
DD
BUS
Test Point
Test Point
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TABLE 2.
5
DESCRIPTION
Application Note 1408
February 13, 2009
AN1408.0