Preliminary WS2801

3-Channel Constant Current

LED Driver With Programmable

PWM Output

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WS-Preliminay-V0.3

http://www.world-semi.com

The Connection and Driving of Cascading Operation

The transmit the data over long distance by cascading, the WS2801 integrates push-pull output stage with strong driving

capability which enables the data and clock can be transmitted up to 6 meters at 2MHz clock frequency.

To prevent the reflection, it is necessary to connect a 50Ω resistor at the data input or output port for impedance match.