Data Sheet
CDK1301
8-bit, 250 MSPS A/D Converter with Demuxed Outputs
CDK1301
Figure 3. Typical Interface Circuit
REV 1A
Figure 4. CLK and Reset Equivalent Circuit
(without ESD Diodes)
Figure 5. Analog Input Equivalent Circuit
Typical Interface Circuit
Very few external components are required to achieve
the stated device performance. Figure 3 shows the typical
interface requirements when using the CDK1301 in nor-
mal circuit operation. The following sections provide
descriptions of the major functions and outline performance
criteria to consider for achieving the optimal device
performance.
Analog Input
The input of the CDK1301
can be configured in various
ways depending on whether a single-ended or differential
input is desired.
The AC-coupled input is most conveniently implemented
using a transformer with a center-tapped secondary winding.
The center tap is connected to the V
CM
pin as shown in
Figure 3. To obtain low distortion, it is important that the
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www.cadeka.com
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CADEKA [ CADEKA MICROCIRCUITS LLC. ]
