Embabi, "A 2.4-GHz monolithic fractional-N frequency synthesizer with robust phase-switching prescaler
and loop capacitance multiplier," IEEE Journal of Solid-State Circuits, vol.
Ma, "Design and optimization of the extended true single-phase clock-based prescaler
," IEEE Transactions on Microwave Theory and Techniques, vol.
The key blocks are three-stage divide-by-2/3 dual modulus prescaler
chain and 6-bit programmable down counter.
Lu, "A 16-GHz triple-modulus phase switching prescaler
and its application to a 15-GHz frequency synthesizer in 0.18-[micro]m CMOS," IEEE Trans.
Ultimate Flexibility: programmable dual-modulus prescaler
of 4/5 or 8/9; programmable output power level, dual output ports, integer-N or fractional-N operation
Attiny13 also contains an 8 bits timer with a prescaler
. In order to configure the timer we need to set 3 registers: TCCR0A, TCCR0B, TCNT0, and TIMSK0.
It has a wide range of peripheral functions, including high-speed DMA, multi-channel SIO, programmable timer, PLL, prescaler
along with additional functionality.
Timer Mode allows only the main clock, sub clock oscillations, time base timer or watch prescaler
Geissberger, et al., "Fabrication, RF Performance and Yield of a Combined Limiting Amplifier and Dual-modulus Prescaler
GaAs IC Chip," IEEE Transactions on Microwave Theory and Techniques, Vol.
The analog block supports MOSFET gate driver output and multiple analog inputs from -12V to up to +12V with optional prescaler
. Pricing starts below $5 each in 250K quantities.
The classic feedback oscillator lends itself to meeting these requirements, (1) while an MMIC-based implementation results in a low cost solution incorporating ancillary circuits such as buffer amplifiers, a prescaler
and a frequency doubler.