Renesas Electronics PLL Clock Driver, 3.3 V, 166 MHz, 20-Pin QSOP Package 49FCT3805AQG

Renesas Electronics 49FCT3805AQG PLL Clock Driver is a high-performance clock distribution integrated circuit designed to operate at 3.3 volts with a maximum output frequency of 166 MHz. Manufactured with advanced dual metal CMOS technology, this device facilitates precise timing signal distribution in electronic systems where signal quality and skew are critical.

The device features a 20-pin QSOP surface mount package with typical dimensions of 8.7 mm in length and 1.47 mm in height, providing a compact footprint ideal for modern PCB designs. It has two separate output banks, each with a 1:5 fanout and independent 3-state output enable control, which allows flexible clock signal management. The built-in heartbeat monitor output supports diagnostics and phase-locked loop (PLL) driving requirements.

The device supports a supply voltage range between 3 V minimum and 3.3 V maximum, ensuring compatibility with various system voltages. It operates reliably within the temperature range of 0°C to 70°C and does not comply with any automotive-specific standards, making it suitable primarily for commercial and industrial electronics applications.

Key electrical features include low capacitance inputs with hysteresis, TTL compatible inputs and outputs, and the ability to be driven from either 3.3 V or 5 V logic levels. The clock driver ensures very low duty cycle distortion of less than 1.0 nanosecond and maximum skew below 500 picoseconds, essential for minimizing timing errors in sensitive circuits.

Operates on 3.3 V ± 0.3 V supply voltage. Offers two independent output banks with 1:5 fanout each and 3-state output capability. Includes a heartbeat monitor identical to output pins for system diagnostics. Built with 0.5 micron CMOS technology ensuring low power consumption.

Package options include SSOP, SOIC, and QSOP for versatile mounting solutions.

This PLL clock driver is widely used in industrial, telecommunications, computing, and measurement equipment where precise clock timing and distribution to multiple loads are crucial. Its low power operation and high signal integrity make it suitable for embedded systems and high-speed digital applications.

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