DS26504L+

The DS26504L+ is a T1/E1/J1/64KCC BITS element in 64 pin LQFP package. It is a Building Integrated Timing Supply (BITS) clock recovery element. It also functions as a basic T1/E1 transceiver. The receiver portion can recover a clock from T1, E1, 64KHz composite clock (64KCC) and 6312KHz synchronization timing interfaces. In T1 and E1 modes, the Synchronization Status Message (SSM) can also be recovered. The transmit portion can directly interface to T1, E1 or 64KCC synchronization interfaces as well as source the SSM in T1 and E1 modes. The DS26504 can translate between any of the supported inbound synchronization clock rates to any supported outbound rate. The DS26504 can also accept an 8KHz as well as a 19.44MHz reference clock. A separate output is provided to source a 6312KHz clock. The device is controlled through a parallel, serial or hardware controller port. It is used in BITS timing and rate conversion applications.

• Accepts 8KHz and 19.44MHz references in addition to T1, E1 and 64KHz composite clock
• GR378 composite clock compliant, G.703 2048KHz synchronization interface compliant
• G.703 64KHz option A and B centralized clock synchronization interface compliant
• G.703 64KHz Japanese composite clock synchronization interface compliant
• G.703 6312KHz Japanese synchronization interface compliant
• Interfaces to standard T1/J1 (1.544MHz) and E1 (2.048MHz)
• Interface to CMI coded T1/J1 and E1 and T1/E1 transmit payload clock output
• 3.3V supply with 5V tolerant inputs and outputs
• Pin and software compatible with the DS26502 and DS26503
• Operating temperature range from 0°C to +70°C

Uwagi

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