IDT2308B-1DC

Clock Generators, PLLs, Frequency Synthesizers Overview

The IDT2308B-1DC is a high-speed phase-lock loop (PLL) clock multiplier manufactured by Renesas Electronics Corporation. It operates within a frequency range of 10 MHz to 133 MHz and provides a 1x multiplication ratio for the input reference clock. The device features zero delay buffer functionality, aligning the phase between the incoming clock and output signals. It distributes one clock input to two banks of four outputs each, utilizing LVTTL logic levels. The component is housed in a 16-pin SOIC package and is characterized for commercial operation temperatures ranging from 0°C to +70°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero delay PLL technology synchronizes output phase with the REF input
• Distributes single input to eight outputs across two independent banks
• Supports external feedback pin for precise delay control
• Low cycle-to-cycle jitter specification under 200 ps

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-speed clock distribution in communication systems
• System synchronization requiring low skew output alignment
• Multiplication of reference clocks up to 133 MHz

Clock Generators, PLLs, Frequency Synthesizers Part Context

The IDT2308B-1DC belongs to the 2308B family of clock multipliers, which are designed for applications requiring flexible clock generation and distribution. This specific variant offers a 1x multiplication factor, distinguishing it from other family members that support 2x or 4x ratios. The series is characterized by its ability to operate without an external RC network while maintaining low power consumption in standby modes.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public documentation indicates the IDT2308B series is obsolete. Designers should evaluate newer alternatives recommended by Renesas for new designs. Verification of electrical compatibility and pinout mapping is required when considering any substitute components.