MPC9992AC

Overview

The MPC9992AC is a 3.3 V differential ECL/PECL PLL clock generator utilizing SiGe technology and a fully differential design to ensure optimum skew and jitter performance. It features seven differential PECL outputs, supporting maximum frequencies up to 400 MHz with output skews less than 100 ps. The device accepts a differential PECL input or crystal oscillator interface, with all control signals being LVCMOS compatible. It operates on a single 3.3 V supply within an ambient temperature range of 0 °C to +70 °C.

Feature Summary

• Seven differential PECL outputs with maximum frequency up to 400 MHz
• SiGe technology ensures minimum output skew (max. 100 ps)
• Supports selectable crystal oscillator interface and PECL compatible clock input
• SYNC pulse generation for non-binary frequency relationships

Applications

• Workstation clock distribution
• Mainframe computer systems
• Telecommunication equipment

Procurement Notes

Verify the AC suffix indicates a lead-free package variant. Confirm availability status as the component may be subject to obsolescence. Ensure the application environment remains within the specified 0 °C to +70 °C operating range.

Selection Notes

Select based on required output frequency ratios (2:1, 3:1, 3:2, 5:2) and reference clock frequency compatibility. Ensure proper power supply filtering on the VCC_PLL pin to minimize jitter. Verify that the system requires PECL levels and can accommodate the 32-lead LQFP package dimensions.

Part Context

The MPC9992AC is part of the Freescale Semiconductor advanced clock driver family. It is pin and function compatible with the MPC992 but offers enhanced performance through SiGe technology. The AC suffix specifically denotes the lead-free packaging option within the standard 32-lead LQFP form factor.

Replacement Considerations

The MPC9992 is directly pin and function compatible with the MPC992. Designers should verify that the legacy MPC992 meets the specific jitter and skew requirements before substitution.