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DEMO MANUAL DC1762A
Figure 4: Demobd Configuration Options
Quick start proceDure
This menu allows any of the options available for the
LTC2165 family to be programmed serially. The LTC2165
family has the following options:
Power Down: Selects between normal operation, nap,
and sleep modes:
• Normal (Default): Entire ADC is powered, and active.
• Nap: ADC core powers down while references stay
active.
• Shutdown: The entire ADC is powered down.
Clock Inversion: Selects the polarity of the CLKOUT signal:
• Normal (Default): Normal CLKOUT polarity
• Inverted: CLKOUT polarity is inverted
Clock Delay: 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: Enables or disables duty cycle stabilizer
• Stabilizer off (Default): Duty cycle stabilizer disabled
• Stabilizer on: Duty cycle stabilizer enabled
Output Current: Selects the LVDS output drive current
• 1.75mA (Default): LVDS output driver current
• 2.1mA: LVDS output driver current
• 2.5mA: LVDS output driver current
• 3.0mA: LVDS output driver current
• 3.5mA: LVDS output driver current
• 4.0mA: LVDS output driver current
• 4.5mA: LVDS output driver current
Internal Termination: Enables LVDS internal termination
• Off (Default): Disables internal termination
• On: Enables internal termination
Outputs: Enables digital outputs
• Enabled (Default): Enables digital outputs
• Disabled: Disables digital outputs
