ISL54211EVAL1Z Intersil, ISL54211EVAL1Z Datasheet - Page 3

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

Specifications of ISL54211EVAL1Z

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

the D+ line of the J1 (USB To HOST) connector. These BNC
connectors can be used to connect resistive loads and/or
test equipment to evaluate the performance of the IC.
USB Connections
A “B” type USB receptacle labeled “USB TO HOST” (J1) is
located on the left under-side of the board. This receptacle
should be connected, using a standard USB cable, to the
up-stream USB host controller which is usually a PC
computer or hub. When this connection is made and the IN
logic control is driven HIGH, the ISL54211 device will go into
USB mode. The USB switches will be turned ON.
An “A” type USB receptacle labeled USB TO DEVICE (J2) is
located on the right under-side of the board. The USB device
can be plugged directly into this receptacle or through a
standard USB cable.
In USB mode the USB host controller and USB device will
be connected through the internal USB switches of the IC.
The USB switches are bi-directional which allow the host
(computer) and downstream USB device to both send and
receive data.
Note: Before connecting the USB host controller at
connector J1, the headphones must be removed from the
headphone speaker jack, J7. This will prevent the audio load
from interfering with USB signal transmission.
The main purpose of the ISL54211 device is to allow the use
of a common USB and Audio Headphone Connector in
Personal Media Players and other portable battery powered
equipment. Either a headphone will be in the common
connector to play music or a USB cable from a computer will
be in the common connector to transmit digital data, such as
music, into the memory of the media player.
The BNC connector J8 (COM-) is in parallel with the D- line
of the J1 USB connector. The BNC connector J9 (COM+) is
in parallel with the D+ line of the J1 USB connector.
The BNC connector J14 (D-) is in parallel with the D- line of
the J2 USB connector. The BNC connector J15 (D+) is in
parallel with the D+ line of the J2 USB connector. If you want
to use the J14 and J15 BNC connectors you must populate
R1 and R2 with 0Ω resistors. These BNC connectors can be
used to connect test equipment to evaluate the performance
of the IC.
3
Application Note 1408
Board Component Definitions
DESIGNATOR
JP1, JP2
J3, J5
J4, J6
JP3
JP4
J10
J12
J13
J14
J15
J11
U1
J1
J2
J7
J8
J9
TABLE 1. BOARD COMPONENT DEFINITIONS
ISL54211IRUZ IC
“B” type USB Receptacle
“A” type USB Receptacle
Left Stereo Audio Input
Right Stereo Audio Input
Headphone Speaker Jack
COM- BNC Connector
COM+ BNC Connector
VDD Positive Connection
VDD Negative Connection
CTRL Logic Control
IN Logic Control
D- BNC Connector
D+ BNC Connector
D-/D+ Differential Probe Connection
IN Pin Connector Selection
Jumper Position 2 - 3 Control through J13
Jumper Position 2 - 1 Control through J1
Connect 4MΩ Pull-down Resistor to IN Pin
Not required for the ISL54211 part.
DESCRIPTION
February 13, 2009
AN1408.0