GENERAL DESCRIPTION
The TSA5059 is a single chip PLL frequency synthesizer designed for satellite and terrestrial tuning systems up to 2.7 GHz.
The RF preamplifier drives the 17-bit main divider enabling a step size equal to the comparison frequency, for an input frequency up to 2.7 GHz. A fixed divide-by-two additional prescaler can be inserted between the preamplifier and the main divider to give a software compatibility with existing ICs. In this case, the step size is twice the comparison frequency.
FEATURES
⢠Complete 2.7 GHz single chip system
⢠Optimized for low phase noise
⢠Selectable divide-by-two prescaler
⢠Operation up to 2.7 GHz with and without divide-by-two prescaler
⢠Selectable reference divider ratio
⢠Compatible with UK-DTT (Digital Terrestrial Television) offset requirements
⢠Selectable crystal/comparison frequency output
⢠Four selectable charge pump currents
⢠Four selectable I2C-bus addresses
⢠Standard and fast mode I2C-bus
⢠I2C-bus compatible with 3.3 and 5 V microcontrollers
⢠5-level Analog-to-Digital Converter (ADC)
⢠Low power consumption
⢠33 V tuning voltage drive
⢠Three I/O ports and one output port.
APPLICATIONS
⢠SAT, TV, VCR and cable tuning systems
⢠Digital set-top boxes.
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