Linear Technology DC1565A Demo Manual page 4

DEMO MANUAL DC1565A
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Figure 2. PScope Toolbar
Figure 3. Demobd Configuration Options
4
Serial Programming
PScope has the ability to program the DC1565A board
serially through the DC1371. There are several options
available in the LTC2152 family that are only available
through serially programming. PScope allows all of these
features to be tested.
These options are available by first clicking on the Set
Demo Bd Options icon on the PScope toolbar (Figure 2).
This will bring up the menu shown in Figure 3.
This menu allows any of the options available for the
LTC2152 family to be programmed serially. The LTC2152
family has the following options:
Sleep Mode: Selects between normal operation, sleep
mode.
• Off (Default): Entire ADC is powered, and active
• On: The entire ADC is powered down
NAP: Selects between normal operation and nap mode.
• Off (Default): Channel one is active
• On: Channel one is in nap mode
Clock Inversion: Selects the polarity of the CLKOUT signal:
• Normal (Default): Normal CLKOUT polarity
• Inverted: CLKOUT polarity is inverted
ClkOut Phase: Selects the phase delay of the CLKOUT
signal:
• None (Default): No CLKOUT delay
• 45 deg: CLKOUT delayed by 45 degrees
• 90 deg: CLKOUT delayed by 90 degrees
• 135 deg: CLKOUT delayed by 135 degrees
Clock Duty Cycle: Enable or disables duty cycle stabilizer
• Stabilizer off (Default): Duty cycle stabilizer disabled
• Stabilizer on: Duty cycle stabilizer enabled
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