TDA9984A datasheet(8/40 Pages) NXP

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TDA9984A_4

Product data sheet

Rev. 04 — 15 January 2009

8 of 40

NXP Semiconductors

TDA9984A

HDMI 1.3 transmitter with 1080p upscaler embedded

Functional description

The TDA9984A is designed to convert digital data (video and audio) provided by a

Set-Top Box or DVD into an HDMI output, which could be used in TV with HDMI or DVI

input.

The TDA9984A is able to output HDMI with the formats:

• RGB

• YCbCr 4:4:4

• YCbCr 4:2:2

The video data input formats are:

• RGB

• YCbCr 4:4:4

• YCbCr 4:2:2 semi-planar

• YCbCr 4:2:2 ITU656-like

It can also handle audio formats:

• 4

× I2S-bus channels

• One S/PDIF channel

• Dolby-True HD and DTS-HD through the use of HBR interface

8.1 Video processing

The TDA9984A has three video input ports VPA[7:0], VPB[7:0] and VPC[7:0] and can

handle any of the following video input modes:

• RGB with 8-bit for each component

• YCbCr 4:4:4 with 8-bit for each component

• YCbCr 4:2:2 semi-planar with up to 12-bit for each component (Y, Cb and Cr)

• YCbCr 4:2:2 ITU656 with up to 12-bit data depth

The TDA9984A can be set to latch data at either the rising or the falling edge.

8.1.1 Internal assignment

The aim of the video input processor is to map internally the incoming data to the

corresponding mode, which can be handled by the video processing. The device expects

to have a big endian digital stream at its input. The internal signal name VP[23:0] is

assigned depending on the input mode as deﬁned in Figure 3.

Fig 3.

Internal assignment of VP[23:0]

VIDEO

INPUT

PROCESSOR

001aag599

VPA[7:0]

VPB[7:0]

VP[23:0]

VPC[7:0]

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