Multiple-Output Clock Generators Exceed Ethernet Requirements

Oct. 8, 2008
The MAX3627/MAX3629 low-jitter clock generators serve high-speed networking applications. The MAX3627 has seven LVDS outputs and one LVCMOS output, while the MAX3629 has five LVDS outputs and three LVCMOS outputs. Both generators utilize a low-noise

The MAX3627/MAX3629 low-jitter clock generators serve high-speed networking applications. The MAX3627 has seven LVDS outputs and one LVCMOS output, while the MAX3629 has five LVDS outputs and three LVCMOS outputs. Both generators utilize a low-noise crystal oscillator and PLL architecture to generate high-frequency (312.5 MHz), ultra-low-jitter (0.14-ps RMS) clock signals from a 25-MHz crystal or reference clock input. The devices simultaneously generate two pin-selectable frequencies for both Ethernet port clocking and MAC clocking. This function eliminates the need for an expensive high-frequency oscillator and a fanout buffer, saving board space and cost. With excellent power-supply noise rejection (PSNR), both parts minimize jitter degradation in noisy power-supply environments. The MAX3627/MAX3629 are ideal for Ethernet interface applications, such as enterprise switches and routers, and other high-speed data-communication systems that require a low-jitter Ethernet frequency. Both devices are fully specified over the 0°C to +70°C commercial temperature range, and operate from a 3.3-V ±5% power supply. They are available in lead-free, 32-pin TQFN packages with prices starting at $8.80 in 1000-piece quantities. MAXIM INTEGRATED PRODUCTS, Sunnyvale, CA. (800) 998-8800.

Company: MAXIM INTEGRATED PRODUCTS

Product URL: Click here for more information

Sponsored Recommendations

Understanding Thermal Challenges in EV Charging Applications

March 28, 2024
As EVs emerge as the dominant mode of transportation, factors such as battery range and quicker charging rates will play pivotal roles in the global economy.

Board-Mount DC/DC Converters in Medical Applications

March 27, 2024
AC/DC or board-mount DC/DC converters provide power for medical devices. This article explains why isolation might be needed and which safety standards apply.

Use Rugged Multiband Antennas to Solve the Mobile Connectivity Challenge

March 27, 2024
Selecting and using antennas for mobile applications requires attention to electrical, mechanical, and environmental characteristics: TE modules can help.

Out-of-the-box Cellular and Wi-Fi connectivity with AWS IoT ExpressLink

March 27, 2024
This demo shows how to enroll LTE-M and Wi-Fi evaluation boards with AWS IoT Core, set up a Connected Health Solution as well as AWS AT commands and AWS IoT ExpressLink security...

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!