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ON Semiconductor has further expanded its range of multiplexer products with the addition of eight mux/fanout devices.

The range now includes the NB6VQ572M, NB6LQ572, NB7L572, NB6L572M, NB7LQ572, NB6LQ572M, NB7VQ58M and NB7V58M mux/fanout devices, which are designed to function at high input rates/clock frequencies.

These new devices are suitable for Sonet, Gigabit Ethernet, Fiber Channel, backplane and other clock/data distribution applications.

The NB6VQ572M and NB6LQ572M high-performance differential 4:1 clock/data input multiplexers, with 1:2 current mode logic (CML) clock/data fanout buffers, operate at up to 6GHz/8Gbps from a 1.8V, 2.5V or 3.3V power supply.

The new devices have a data-dependent jitter of less than 10ps and random clock jitter of less than 0.8ps RMS.

The NB7L572 and NB6LQ572 high-performance differential 4:1 clock/data input multiplexers have a 1:2 low-voltage positive emitter coupled logic (LVPECL) clock/data fanout buffer.

The devices’ differential INx/INxb inputs include internal 50ohm termination resistors and will accept differential LVPECL, low-voltage differential signalling (LVDS) or CML logic levels.

These devices also incorporate a pair of select pins that will choose one of four differential inputs and produce two identical LVPECL output copies of clock or data operating up to 7GHz/10Gbps.

This is complemented by the NB6L572M, which has a 1:2 CML clock/data fanout buffer that operates up to 6GHz/8Gbps, and the NB6LQ572M, which supports the same speeds but incorporates a fixed equaliser receiver on each input pair to enhance the degraded signal transmitted across an FR4 printed-circuit-board backplane or cable interconnect.

The NB7VQ58M high-performance differential 2:1 clock/data multiplexer also has a selectable equaliser receiver.

When placed in series with a data path operating at up to 10.7Gbps, it compensates the degraded signal creating a more open-eye diagram, allowing for higher data rates on standard FR4.

The differential inputs of the NB7V58M 2:1 clock/data multiplexer incorporate internal 50ohm termination resistors that are accessed through the VT pin.

This feature allows the device to accept LVPECL, CML and LVDS logic level standards.

The NB7V58M produces minimal clock/data jitter and also operates up to 7GHz/10.7Gbps.

The devices each have a -40C to +85C operating temperature range.

The NB6VQ572M, the NB6LQ572, the NB7L572, the NB6L572M, the NB7LQ572 and the NB6LQ572M are offered in 5 x 5mm QFN-32 packages.

The NB7VQ58M and the NB7V58M are offered in low-profile 3 x 3mm QFN-16 packages.

These devices are priced per unit in 1,000-unit quantities at USD6.50 (GBP4.23).

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