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Clock transceiver assists T1/E1/J1 architectures

Dallas, TX —Dallas Semiconductor introduced the DS26504, an enhanced building-integrated timing-supply (BITS) clock-recovery element. The device augments the capabilities of the company's earlier BITS products by adding support for the following frequencies: 64-kHz timing interface (GR378 and G.703 Option A and Option B), 2048-kHz and 6312-kHz (Japanese) synchronization interfaces, and the standard T1/E1/J1 interfaces. Other standard, supported frequencies include 19.44MHz and 8kHz. Basic framing and formatting are also provided in the T1/E1/J1 operating modes, making this part well suited for composite clock and T1/E1/J1 architectures.

The DS26504 is also a low-cost solution for composite-clock transceiver applications. It can translate from any of the supported inbound synchronization clock rates to any supported outbound rate. No external component changes are required to switch between any of the synchronization clock rates or the T1, E1 and J1 standards.

Additionally, no relays or switched external components are required, and a single master clock supports all operating modes. Packaged in a small 64-pin LQFP the part is available in commercial (0 to +70 degrees Celsius) and industrial (-40 degrees Celsius to +85 degrees Celsius) operating temperature ranges.

Prices start at $18.46 (5000-up, FOB USA). An evaluation kit is available. Click here for the data sheet.

Dallas Semiconductor/Maxim, +1-800-998-8800, www.maxim-ic.com .

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