DLPC3421 datasheet(26/63 Pages) TI

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7.3 Feature Description

7.3.1 Input Source Requirements

7.3.1.1 Supported Resolution and Frame Rates

Table 7-1. Supported Input Source Ranges(1) (2) (3)

INTERFACE

BITS PER PIXEL

(max)(5)

IMAGE TYPE

SOURCE RESOLUTION RANGE(7) (pixels)

FRAME RATE

RANGE

(Hz)

HORIZONTAL

VERTICAL

Landscape

Portrait

Landscape

Portrait

Parallel

2D only

320 to 854

854 to 320

180 to 480

480 to 180

48 to 360

DSI(8)

2D only

320 to 854

854 to 320

180 to 480

480 to 180

48 to 360

BT.656-NTSC(4)

See (6)

2D only

854

N/A

480

N/A

60 ± 2

BT.656-PAL(4)

See (6)

2D only

854

N/A

480

N/A

50 ± 2

(1)

The application must remain within specifications for all source interface parameters such as maximum clock rate and maximum line

rate.

(2)

The maximum DMD size for all rows in the table is 854 × 480 pixels.

(3)

To achieve the ranges stated, the firmware must support the source parameters. Review the firmware release notes or contact TI to

determine the latest available frame rate and input resolution support for a given firmware image.

(4)

All parameters in this row follow the BT.656 standard. The image format is always landscape.

(5)

Bits per pixel does not necessarily equal the number of data pins used on the DLPC34xx controller.

(6)

BT.656 uses 16-bit 4:2:2 YCbCr.

(7)

By using an I2C command, the controller can rotate portrait image inputs on the DMD by minus 90 degrees so that the image displays

in landscape format.

(8)

Applications may require up to four DSI lanes in order to fully utilize the available DSI bandwidth (and therefore achieve the maximum

display rates and resolutions).

DLPC3421

DLPS231 – OCTOBER 2021

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