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SN65LVDS20

Texas Instruments

LVPECL AND LVDS REPEATER/TRANSLATOR

www.ti.com SN65LVDS20 SN65LVP20 SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005 LVPECL AND LVDS REPEATER/TRANSLATOR WITH...



SN65LVDS20

Texas Instruments


Octopart Stock #: O-1491263

Findchips Stock #: 1491263-F

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www.ti.com SN65LVDS20 SN65LVP20 SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005 LVPECL AND LVDS REPEATER/TRANSLATOR WITH ENABLE FEATURES • Low-Voltage PECL Input and Low-Voltage PECL or LVDS Outputs • Signaling Rates to 4 Gbps or Clock Rates to 2 GHz – 120-ps Output Transition Times – Less than 45 ps Total Jitter – Less than 630 ps Propagation Delay Times • 2.5-V or 3.3-V Supply Operation • 2-mm x 2-mm Small-Outline No-Lead Package APPLICATIONS • PECL-to-LVDS Translation • Data or Clock Signal Amplification DESCRIPTION The SN65LVDS20 and SN65LVP20 are a high-speed differential receiver and driver connected as a repeater. The receiver accepts low-voltage positive-emitter-coupled logic (PECL) at signaling rates up to 4 Gbps and repeats it as either an LVDS or PECL output signal. The signal path through the device is differential for low radiated emissions and minimal added jitter. The outputs of the SN65LVDS20 are LVDS levels as defined by TIA/EIA-644-A. The outputs of the SN65LVDP20 are compatible with low-voltage PECL levels. A low-level input to EN enables the outputs. A high-level input puts the output into a high-impedance state. Both outputs are designed to drive differential transmission lines with nominally 100-Ω characteristic impedance. Both devices provide a voltage reference (VBB) of typically 1.35 V below VCC for use in receiving single-ended PECL input signals. When not used, VBB should be unconnected or open. All devices are characterized for operation from -4...




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