ISL34321INZ Intersil, ISL34321INZ Datasheet - Page 11

• Manufacturer Part Number: ISL34321INZ
• Description: Transceiver IC
• Manufacturer: Intersil

Specifications of ISL34321INZ

• Serdes Function: Transmitter / Receiver
• No. Of Inputs: 16
• No. Of Outputs: 16
• Supply Voltage Range: 1.7V To 1.9V, 3V To 3.6V
• Driver Case Style: TQFP
• No. Of Pins: 48
• Frequency: 45MHz
• Interface: I2C
• Termination Type: SMD
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ISL34321
Master Mode
COPPER PAD
This is a mode activated by strapping the MASTER pin to
a ‘1’ on the ISL34321 on the remote side of the
2
controller. This is a virtual extension of the I
C interface
across the link that allows the local processor to read and
write slave devices connected to the remote side serdes
2
I
C bus. No additional wires or components are needed
VIAS
2
other than the serial link. The I
C commands and data
25X
are transferred during video blanking causing no
interruptions in the video data. In Master mode the data
is transported across the link by the Side Channel so the
maximum throughput achievable would be the same.
The SCL and SDA frequency is adjustable through the
programming of a register.
FIGURE 5. LAYOUT FOR THE EXPOSED PAD
Exposed Pad
While it is not a required electrical connection, it is
recommended that the exposed pad on the bottom of the
package be soldered to the circuit board. This will ensure
that the full power dissipation of the package can be
utilized. The pad should be connected to ground and not
left floating. For best thermal conductivity 9 - 25 vias
should connect the footprint for the exposed pad on the
circuit board to the ground plane.
11
FN6870.1
September 23, 2010