Аналоговые и цифровые коммутационные ИС DS25CP104ATSQ/NOPB

Матричный коммутатор , цифровой, 4x4 массив, LVDS, SMBus, 3.3В питание, WQFN-40

The DS25CP104ATSQ/NOPB is a 3.125Gbps 4x4 LVDS Crosspoint Switch optimized for high speed signal routing and switching over lossy FR-4 printed circuit board backplanes and balanced cables. Fully differential signal paths ensure exceptional signal integrity and noise immunity. The non-blocking architecture allows connections of any input to any output or outputs. The switch configuration can be accomplished via external pins or the System Management Bus (SMBus) interface. The DS25CP104A feature four levels (off, low, medium, high) of transmit pre-emphasis (PE) and four levels (off, low, medium, high) of receive equalization (EQ) settable via the SMBus interface. Off and medium PE levels and off and low EQ levels are settable with the external pins. In addition, the SMBus circuitry enables the loss of signal (LOS) monitors that can inform a system of the presence of an open inputs condition (e.g. disconnected cable).

• DC - 3.125Gbps Low jitter, low skew, low power operation
• Pin and SMBus configurable, fully differential, non-blocking architecture
• Pin (two levels) & SMBus (four levels) selectable pre-emphasis & equalization eliminate ISI jitter
• Wide input common mode range enables easy interface to CML and LVPECL drivers
• LOS circuitry detects open inputs fault condition
• On-chip 100R input and output termination minimizes insertion and return losses
• Reduces component count, minimizes board space
• Eliminates the on-chip input termination for added design flexibility
• 8kV ESD on LVDS I/O Pins protects adjoining components

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