MPC9230AC

Overview

The MPC9230 is an 800 MHz low voltage PECL clock synthesizer manufactured by NXP USA Inc. (originally Freescale Semiconductor). It operates on a 3.3 V supply and utilizes SiGe technology to generate synthesized clock outputs ranging from 50 MHz to 800 MHz. The device features differential LVPECL outputs, an internal crystal oscillator, and a fully integrated PLL with a VCO frequency range of 800–1600 MHz. Configuration is supported via parallel or serial interfaces. Available in 28-lead PLCC and 32-lead LQFP packages, it supports an ambient temperature range of -40°C to +85°C.

Feature Summary

• Synthesized clock output frequencies from 50 MHz to 800 MHz using differential LVPECL signals.
• Fully integrated PLL with VCO operating between 800 MHz and 1600 MHz.
• On-chip series resonant crystal oscillator requiring only an external quartz crystal.
• Dual configuration options: parallel interface for power-up and serial 3-wire interface for dynamic updates.
• Separate power supplies for digital core (VCC) and analog PLL (VCC_PLL) to minimize noise.

Applications

• High-performance telecom infrastructure systems.
• Networking equipment requiring precise clock distribution.
• Computing applications demanding low jitter clock generation.

Procurement Notes

Verify package suffix compatibility, as the MPC9230 is available in 28-lead PLCC (FN/EI suffixes) and 32-lead LQFP (FA/AC suffixes). Confirm RoHS compliance status if required, noting that EI and AC suffixes indicate Pb-free packaging. Ensure design accounts for the specific thermal resistance values associated with the chosen package and board layout conditions.

Selection Notes

Select the appropriate package based on PCB space constraints: 28-lead PLCC or 32-lead LQFP. Determine the reference clock source; the device supports both an on-board crystal oscillator (XTAL_IN/OUT) and an external LVCMOS reference input (FREF_EXT). Ensure the desired output frequency falls within the valid M and N divider ranges defined by the VCO frequency limits (800–1600 MHz) for the target operating temperature.

Part Context

The MPC9230 belongs to the Advanced Clock Drivers Devices family from NXP/Freescale. It is functionally and pin-compatible with the MC12430. The device was originally released under Freescale Semiconductor branding before the company's acquisition by NXP. It serves as a specialized solution for generating high-frequency, low-jitter clocks in mixed-signal environments.

Replacement Considerations

The MPC9230 is pin and function compatible with the MC12430. When substituting, verify that the replacement part maintains the same LVPECL output characteristics and 3.3 V supply requirements. Note that the MPC9230 itself may be considered obsolete depending on current manufacturer production status.