TSA5059ATS/C1,118

Clock Generators, PLLs, Frequency Synthesizers Overview

The TSA5059ATS/C1,118 is a single-chip PLL frequency synthesizer designed for satellite tuning systems operating up to 2.7 GHz. It features an integrated RF preamplifier and a 17-bit main divider, enabling operation up to 2.3 GHz without a prescaler and up to 2.7 GHz with a selectable divide-by-two prescaler. The device supports I2C-bus control with four programmable addresses and includes a 5-level ADC. Key electrical parameters include a 5 V supply voltage (4.75–5.25 V), typical supply current of 37 mA, and RF input frequencies from 900 MHz to 2.7 GHz. It operates within an ambient temperature range of -20 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Complete 2.7 GHz single-chip system optimized for low phase noise
• Selectable divide-by-two prescaler for frequencies above 2.3 GHz
• Four selectable charge pump currents and four programmable I2C-bus addresses
• Integrated 5-level Analog-to-Digital Converter (ADC) and three general-purpose I/O ports

Clock Generators, PLLs, Frequency Synthesizers Applications

• Satellite zero-IF and non-zero-IF tuning systems
• Digital set-top boxes

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the package variant matches the 'S' suffix in the model number, indicating an SSOP16 plastic shrink small outline package (SOT369-1). Confirm the manufacturer origin, as the part was originally specified by Philips Semiconductors before the NXP brand transition. Ensure the C1,118 suffix corresponds to the specific reel or tape-and-reel configuration required for the assembly process.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when designing satellite tuner applications requiring a single-chip solution up to 2.7 GHz. Use the divide-by-two prescaler feature only for frequencies exceeding 2.3 GHz to maintain optimal step size and phase noise performance below that threshold. Ensure the external loop filter and NPN transistor are compatible with the selected charge pump current settings ranging from 135 µA to 1230 µA.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the TSA5059 family of I2C-bus controlled frequency synthesizers. The TSA5059AT variant utilizes an SO16 package, while the TSA5059ATS uses an SSOP16 package. Both share identical functional specifications and electrical characteristics, differing primarily in physical dimensions and lead pitch suitable for different PCB mounting densities.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.