DLPC3421 datasheet(40/63 Pages) TI

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8 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI’s customers are responsible for

determining suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

8.1 Application Information

The DLPC34xx controller is used with the DLP160CP DMD to provide a reliable display solution for many data

and video display applications. The DMDs are spatial light modulators which reflect incoming light from an

illumination source to one of two directions, with the primary direction being into projection or collection optics.

The optical architecture of the system and the format of the image digital data coming into the DLPC34xx are

what primarily determine the application requirements.

Click these links to find more information about typical applications:

Mobile projector, Smart display, Smartphone, Tablet (multimedia), Augmented reality glasses, Smart home

display, or Pico projector.

8.2 Typical Application

A common application when using the DLPC34xx controller with the DLP160CP DMD and the DLPAxxxx

PMIC/LED driver is to create a pico projector embedded in a handheld product. For example, a pico projector

may be embedded in a smartphone, a tablet, or a camera. The controller in the pico projector embedded module

typically receives images from a host processor within the product.

Illumination

optics

DLPC34xx

DMD

DLPA200x

TI DLP Chipset

Non-TI Device

VBIAS, VOFFSET,

VRESET

SYSPWR

Sub-LVDS DATA

PROJ_ON

HOST_IRQ

Flash

Parallel Interface (28)

DSI (10)

VLED

CTRL

RLIM

1.8 V external

1.8 V

PROJ_ON

VCC_18

VCC_INTF

VCC_FLSH

VDD

SPI (4)

INTZ

Thermistor

VDDLP12

SPI0

SPI1

RESETZ

PARKZ

GPIO_8

GPIO_10

CMP_OUT

1.8 V

1.1 V

Video

Front End

System

Controller

HDMI

Keypad

Supplies

VSPI

1.8 V

1.1 Reg

1.1 V

LED_SEL (2)

RC_

CHARGE

1.8 V

Figure 8-1. Typical Simplified Application Schematic (using DLPA200x)

DLPC3421

DLPS231 – OCTOBER 2021

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