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.