MPC9230ACR2

Overview

The MPC9230ACR2 is a 3.3 V compatible, PLL-based clock synthesizer manufactured by Integrated Device Technology (IDT), now part of Renesas Electronics Corporation. It generates synthesized clock signals ranging from 50 MHz to 800 MHz using differential LVPECL outputs. The device features an on-chip crystal oscillator or supports an alternative LVCMOS reference input. Configuration is managed via a serial 3-wire interface or parallel inputs for power-up settings. It operates within an ambient temperature range of -40°C to +85°C and utilizes SiGe technology.

Feature Summary

• Generates output frequencies from 50 MHz to 800 MHz with differential LVPECL outputs.
• Includes an integrated on-chip crystal oscillator and supports external LVCMOS reference clocks.
• Features fully integrated PLL with separate analog (VCC_PLL) and digital (VCC) power supplies.
• Supports configuration through a serial 3-wire interface or parallel M/N inputs.

Applications

• High-performance telecom equipment clock generation
• Networking infrastructure timing solutions
• Computing system clock distribution

Procurement Notes

Verify the manufacturer designation as IDT or Renesas, as IDT was acquired by Renesas. Confirm the suffix 'ACR2' corresponds to the 32-lead LQFP Pb-free package variant. Ensure the source document matches the specific revision required for your design implementation.

Selection Notes

Select this component when differential LVPECL outputs are required for high-speed clock distribution. Ensure the application environment stays within the -40°C to +85°C operating range. Verify that the desired output frequency falls within the valid VCO range of 800–1600 MHz based on the chosen crystal frequency and divider settings.

Part Context

This device belongs to the MPC9230 family of low-voltage PECL clock synthesizers. It is pin and function compatible with the MC12430. The AC suffix indicates a 32-lead LQFP package, while other variants like FN or EI offer PLCC packaging options.

Replacement Considerations

The MPC9230 is pin and function compatible with the MC12430. Direct substitution should be verified against the specific electrical characteristics and package requirements of the target application.

FAQ

What is the maximum output frequency at extended temperatures?

At an ambient temperature range of -40°C to +85°C, the maximum output frequency is limited to 750 MHz due to VCO frequency constraints.

How is the internal PLL configured?

The PLL feedback divider (M) and post-divider (N) can be set via parallel inputs sampled on the P_LOAD transition or through a 14-bit serial shift register loaded via S_CLOCK and S_DATA.

Can the TEST output be used for high-frequency signals?

No. The TEST output is LVPECL compatible but cannot toggle fast enough for higher output frequencies; it is intended only for test and diagnosis purposes.