DC1562B-E

DC1562B-E is a demonstration circuit to design and evaluate the LTC6992-1 TimerBlox circuits. The LTC6992 is a silicon oscillator with an easy to use analog voltage controlled pulse width modulation (PWM) capability. The LTC6992 is part of the TimerBlox family of versatile silicon timing devices. A single resistor, RSET, programs the LTC6992's internal master oscillator frequency. The output frequency is determined by this master oscillator and an internal frequency divider, NDIV, programmable to eight settings from 1 to 16384. The center section of the board contains a preconfigured TimerBlox function. Surrounding the center board is a playground prototyping area. This area is for conditioning signals to control the timer function and for adding loads controlled in time.

• Pulse width modulation controlled by simple 0V to 1V analog input
• 10KHz, 0% to 95% duty cycle PWM
• Configured with 1 to 3 resistors
• Less than 1.7% maximum frequency error
• PWM duty cycle error < 3.7% maximum
• Frequency modulation (VCO) capability
• 2.25V to 5.5V single supply operation
• 115uA supply current at 100KHz
• 500us start up time
• CMOS output driver sources/sinks 20mA