NB3M8304CDG

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The NB3M8304CDG is a Clock Buffer, Driver and Generator IC, manufactured by ON Semiconductor. It is specifically designed to provide flexible clock buffering, generation and distribution of JEDEC standard low-voltage logic signals. It is used in a variety of applications, including server, bridges, graphics engines and network processor applications. In this article, we will look at the specifics of the NB3M8304CDG, including its application field and working principle.

NB3M8304CDG Features

The NB3M8304CDG is a low skew, low noise and low jitter clock buffer capable of expanding up to 12 clock inputs . It can be used as a clock buffer for LVTTL, HCMOS and CML logic signals, and is designed with ON Semiconductor’s exclusive clock tree which helps reduce design complexity and cost. It has a 3-state buffer and a register to control output signals. The device also features a single mode control bit that allows clock dividers, buffers and generator blocks to be switched off or on via software or hardware control. The NB3M8304CDG can generate output clocks up to 4 GHz and provides data capture, data aligning and synchronization functions.

NB3M8304CDG Applications

The NB3M8304CDG is ideal for applications that require high performance clock distribution and buffering. It is commonly used in:

• GPS and timing systems
• Communication systems
• Networking servers
• Computing systems
• Graphics cards
• Video game consoles
• Cellular telephones

NB3M8304CDG Working Principles

The following describes the device’s basic operating principles:

1. The NB3M8304CDG receives an input clock signal. This input signal is then passed through a three-state buffer that is connected to a bidirectional register.
2. The register is then connected to a programmable differential clock generator block. This block is used to generate clocks that are differentially clocked on the output.
3. The differential clock generator block produces up to four output clocks using a divide-by-two circuit. Each of the output clock signals can be programmed to different frequencies.
4. The differential clock generator block also contains a latch, which is used to capture data from the divider block and generate the output clocks.
5. The latch is used to synchronize the output clocks to the input clock signal, ensuring that the output signals are properly phase-and frequency-aligned.
6. The device also contains a clock tree block, which is used to reduce design complexity and cost with minimal skew and jitter.

Conclusion

The NB3M8304CDG is an ideal solution for applications that require high performance clock buffering and generation. It is capable of expanding up to 12 clock inputs, generating output clocks up to 4 GHz, and provides data capture, data aligning and synchronization functions. Its integrated clock tree block helps reduce design complexity and cost with minimal skew and jitter. The device is suitable for a variety of applications including GPS and timing systems, communication systems, networking servers, computing systems, graphics cards, video game consoles and cellular telephones.

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