NXP TSA5512AT 1.3 GHz I2C-bus Controlled Synthesizer

The NXP TSA5512AT is a high-performance single-chip PLL (Phase-Locked Loop) frequency synthesizer designed for TV and VCR tuning systems. Operating at a frequency range of up to 1.3 GHz, this synthesizer is a versatile solution for systems that require precise frequency generation and control. Its integration with the I2C-bus allows for easy communication and control, making it a popular choice for developers and engineers in the consumer electronics industry.

Key Features

• Frequency Range: The TSA5512AT operates at a broad frequency range, accommodating various applications that require tuning within the VHF, UHF, and Hyperband spectrums.
• I2C-Bus Interface: The device features an I2C-bus interface, which simplifies system design by allowing for straightforward serial communication with microcontrollers or processors.
• Programmable Divider: It includes a programmable divider, enabling the selection of multiple frequency outputs from a single reference frequency, which is essential for multi-standard tuning.
• Low Phase Noise: This synthesizer is engineered to produce a stable output signal with low phase noise, ensuring high-quality signal transmission and reception.
• Minimal External Components: The TSA5512AT is designed to work with a minimal number of external components, reducing the overall system cost and simplifying the circuit design.

Applications

The NXP TSA5512AT is ideally suited for a range of applications that require reliable and precise frequency synthesis. Its primary use is found in:

• Television tuners (both analog and digital)
• Video cassette recorders (VCRs)
• Cable converter boxes
• Satellite receivers

Technical Specifications

The device is encapsulated in a compact SOT109-1 package, which is conducive to space-constrained applications. It operates over a standard supply voltage, typically 5V, and features a charge pump output for the external loop filter. The TSA5512AT also includes an onboard crystal oscillator circuit, which can be configured for various crystal frequencies, providing flexibility for different system designs.

With its combination of high performance, ease of integration, and versatility, the NXP TSA5512AT synthesizer is an excellent choice for any application that demands precise and stable frequency control.