IBM 39J2750 Programmable Process Clock Card P590

Overview
The IBM Programmable Process Clock Card P590 (part number 39J2750) is a high-performance timing module designed for IBM System p and System i platforms. It provides precise, programmable clock signals to synchronize processor, I/O, and peripheral operations. Built with robust components, the P590 ensures reliable timing in demanding enterprise environments and can be configured to meet a wide range of frequency and duty-cycle requirements.

Key Features

• Fully programmable clock frequency from 1 Hz to 100 MHz
• Adjustable duty cycle from 10 percent to 90 percent
• Supports up to eight independent clock outputs per card
• Low jitter performance for high precision applications
• Plug-in form factor compatible with standard IBM system slots
• On-board diagnostics and status LEDs for easy troubleshooting
• Compact design reduces space and power consumption

Technical Specifications

• Model/Part Number: 39J2750
• Manufacturer: IBM
• Clock Output Types: TTL, LVDS, and CMOS
• Frequency Range: 1 Hz - 100 MHz
• Duty Cycle Range: 10 percent - 90 percent
• Number of Channels: 8 programmable channels
• Power Supply: 5 VDC typical, 0.5 A max per card
• Operating Temperature: 0 degrees C to 55 degrees C
• Dimensions: 3.5 in x 4.5 in x 0.8 in (H x W x D)

Applications

• Real-time data acquisition systems that require synchronized sampling
• High-speed networking equipment needing precise clock distribution
• Industrial automation controllers where timing accuracy is critical
• Scientific instrumentation that demands low jitter clock sources
• Telecommunications gear that relies on stable timing for protocol compliance
• Custom hardware development boards used in research and development labs

The IBM Programmable Process Clock Card P590 delivers flexible timing solutions that help maximize system efficiency and reliability. Its programmable nature allows engineers to tailor clock signals to exact specifications, reducing the need for additional external timing hardware and simplifying overall system design.