IDT2308B-1HPGI8

Clock Generators, PLLs, Frequency Synthesizers Overview

The IDT2308B-1HPGI8 is a 3.3V zero-delay clock multiplier manufactured by Renesas Electronics Corporation, formerly IDT. It utilizes a Phase-Lock Loop (PLL) to distribute one clock input to two banks of four outputs, achieving a 1:8 ratio with 1x multiplication. The device operates within a frequency range of 10MHz to 133MHz and features an external feedback pin for synchronization. Key electrical parameters include output skew less than 200 ps and cycle-to-cycle jitter under 200 ps. It supports LVTTL/LVCMOS outputs and functions at 3.3V VDD. The component is housed in a 16-pin TSSOP package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero-delay buffer architecture aligns output phase with the REF input using PLL technology
• Distributes single input to eight outputs organized in two independent banks of four
• Low jitter performance with cycle-to-cycle jitter <200 ps and output skew <200 ps
• External feedback pin allows user control over delay and synchronization

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-speed clock distribution in communication systems
• Multiplication and buffering of reference clocks up to 133 MHz
• Spread spectrum applications requiring high loop filter bandwidth

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

This part number is obsolete and no longer manufactured. Verification of availability requires checking secondary market distributors or authorized surplus dealers. Designers must confirm lead times and authenticity through verified supply chain channels, as standard procurement routes are inactive.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component only for legacy system maintenance or redesign activities where specific form-factor and pinout compatibility are required. For new designs, consider modern equivalents that offer RoHS compliance and active manufacturing status while maintaining similar zero-delay buffer specifications.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The IDT2308B series belongs to Renesas' portfolio of high-performance clock multipliers. The 'B' suffix typically denotes industrial temperature range variants, while 'H' indicates high drive strength outputs. This specific variant integrates these features into a compact TSSOP package suitable for dense PCB layouts.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitutes include Texas Instruments CDCVF25081PW and CDCVF25081PWR. These devices serve as upgrade alternatives for the obsolete IDT2308B series, offering compatible functionality in similar packages.