TimerBlox: Delay Block/Debouncer

The LTC6994 is a programmable delay block with a range of 1µs to 33.6 seconds. The LTC6994 is part of the TimerBlox® family of versatile silicon timing devices.

A single resistor, RSET, programs an internal master oscillator frequency, setting the LTC6994’s time base. The input-to-output delay is determined by this master oscillator and an internal clock divider, NDIV, programmable to eight settings from 1 to 221.

The output (OUT) follows the input (IN) after delaying the rising and/or falling transitions. The LTC6994-1 will delay the rising or falling edge. The LTC6994-2 will delay both transitions, and adds the option to invert the output.

The LTC6994 also offers the ability to dynamically adjust the delay time via a separate control voltage.

Applications

* Noise Discriminators/Pulse Qualifiers

* Delay Matching

* Switch Debouncing

* High Vibration, High Acceleration Environments

* Portable and Battery-Powered Equipment

* Delay Range: 1µs to 33.6 Seconds

* Configured with 1 to 3 Resistors

* Delay Max Error:

* <2.3% for Delay > 512µs

* <3.4% for Delay of 8µs to 512µs

* <5.1% for Delay of 1µs to 8µs

* Delay One or Both Rising/Falling Edges

* 2.25V to 5.5V Single Supply Operation