Datasheet

DS15MB200

SNLS196E –NOVEMBER 2005–REVISED MARCH 2013

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Output Characteristics

The output characteristics of the DS15MB200 have been optimized for point-to-point backplane and cable

applications, and are not intended for multipoint or multidrop signaling.

A 100Ω output (source) termination resistor is incorporated in the device to eliminate the need for an external

resistor, providing excellent drive characteristics by locating the source termination as close to the output as

physically possible.

Pre-Emphasis Controls

The pre-emphasis is used to compensate for long or lossy transmission media. Separate pins are provided for

each output to minimize power consumption. Pre-emphasis is programmable to be off or on per the Pre-

emphasis Control Table.

PREx_n

(1)

Output Pre-Emphasis

0 0%

1 100%

(1) Applies to PREA_0, PREA_1, PREB_0, PREB_1, PREL_0, PREL_1

Multiplexer Truth Table

(2)(3)

Data Inputs Control Inputs Output

SIA_0 SIB_0 MUX_S0 ENL_0 LO_0

X valid 0 1 SIB_0

valid X 1 1 SIA_0

X X X 0 Z

(2) Same functionality for channel 1

(3) X = Don't Care

Z = High Impedance (TRI-STATE)

Repeater/Buffer Truth Table

(1)(2)

Data Input Control Inputs Outputs

LI_0 ENA_0 ENB_0 SOA_0 SOB_0

X 0 0 Z Z

valid 0 1 Z LI_0

valid 1 0 LI_0 Z

valid 1 1 LI_0 LI_0

(1) Same functionality for channel 1

(2) X = Don't Care

Z = High Impedance (TRI-STATE)

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Product Folder Links: DS15MB200