Hardware Description

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2.1

Video Connectors for DP159 Ports

The EVM has a DP connection for the source and a HDMI connection for the sink. J2 is a standard DP

connector (Molex 47272-0001). P2 is a standard HDMI connector (Molex 4715-10001). There is a third

video connection on the board for a HDMI source (P1), this function is not installed on the

DP159RSBEVM.

2.2

Enable/Reset

There are three device enable/reset options to use with the EVM:

(A) Supervisor circuitry option

This is the default configuration on the DP159RSBEVM. The enable (EN) signal is held low until the

power good (PG) from the 3.3-V voltage regulator reaches a stable high-voltage level then released

high.

(B) RC timing option

C26 external capacitor and internal resistor are used to control the EN ramp time after the device is

powered on. C26 is a Do Not Install (DNI option) by default. C26 needs to be installed and R77 needs

to be uninstalled to enable this option.

(C) External control option

A push button (SW1) is provided for manual control of the DP159’s EN/OE input.

2.3

Power

A DC power jack (J9) to accept a 5-V wall power adapter is provided on the EVM. The DC power jack

(CUI Inc. PJ-202AH) has an inner diameter of 2.1 mm and an outer diameter of 5.5 mm. The tip of the +5-

V power supply must be positive. A +5-V power supply of at least 1.5 A that meets the given requirements

can be used to power the DP159RSBEVM. Power is provided to the EVM from the 5-V wall power adapter

when SW2 is set to position 1.

CAUTION

Care should be taken to not plug in any power source higher than the

configured voltage (5 V).

Alternately, it is possible to power the EVM by connecting a USB Micro cable from J13 to a USB host and

setting SW2 to position 3.

4

DP159RSB Evaluation Module

SLLU224A – August 2015 – Revised October 2015

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