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Digital vs Analog Outputs
The ISL5239 outputs are available in either digital or analog
format. Connector J1 can be utilized for IOUT<17:0> and
connector J5 for QOUT<17:0> in digital format selectable as
either 2’s complement or Offset binary. The analog
representation of these output is generated via U4, an
ISL5929 Dual 14-bit converter. The ISL5239 drives a
differential conversion and filtering network designed to
directly interface with available analog quadrature
modulators devices. An application note is available for
additional details on the characteristics of the analog output
functions.
Internal vs External Processor Control
The on-board USB controller is the primary computer
interface for controlling the ISL5239. Both this GUI and the
Matlab drivers are designed for operation with the USB
controller. J6 can be utilized to provide for external
processor control by directly connecting a host processor to
this header pin interface.
GUI vs Matlab Control Interface
There are two command and control interfaces supported by
the ISL5239Eval1. The GUI is a Windows based interface
implemented from C source code. An additional control
interface is available which allows device reads and writes
from Matlab. Please see the application notes on open loop
and closed loop characterization for additional descriptions
of the Matlab based interfaces.
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Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. 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 data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
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