tda9984a NXP Semiconductors, tda9984a Datasheet - Page 21

• Manufacturer Part Number: tda9984a
• Description: Hdmi 1.3 Transmitter With 1080p Upscaler Embedded
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TDA9984A_4
Product data sheet
8.1.7 Color space converter
8.1.8 Downsampler
8.2.1 S/PDIF
8.2 Audio processing
The color-space converter is used to convert input video data from one type to another
color space (e.g. RGB to YCbCr and YCbCr to RGB). This block can be bypassed and
each coefficient is programmable by the I
This block works only with YCbCr input format. These filters downsample the Cb and Cr
signals by a factor of two. A delay is added on the G/Y channel, which corresponds to the
pipeline delay of the filters, to put the Y channel in phase with the Cb and Cr channel.
The TDA9984A is compatible with audio features as per HDMI specification, Rev. 1.3 :
S/PDIF, I
used at a same time.
Table 15.
All audio ports are LV-TTL compatible.
It is possible to map internally an unused port to internal ground via the I
ENA_APx and GND_APx on page 00h (both audio inputs and clock input as well).
The audio port AP6 is used for this feature. In this format, the TDA9984A supports
2-channel uncompressed PCM data (IEC 60958) layout 0, or compressed bit stream up to
8 multi-channels (Dolby Digital, DTS, AC3, etc.) layout 1.
Audio port
AP0
AP1
AP2
AP3
AP4
AP5
AP6
AP7
ACLK
CbB
CrR
•
•
•
YG
S/PDIF
I
Dolby-True HD and DTS-HD through the use of HBR interface
2
S-bus up to four channels
=
2
S-bus or HBR can be selected via the I
C
C
C
Audio port configuration
11
21
31
C
C
C
12
22
32
C
C
C
13
23
33
Table 15
Rev. 04 — 15 January 2009
Format
S/PDIF
-
-
-
-
-
MCLK
S/PDIF input
AUX (internal test)
-
BCb
RCr
GY
shows the audio port allocation.
HDMI 1.3 transmitter with 1080p upscaler embedded
+
Oin
Oin
Oin
BCb
RCr
GY
2
C-bus registers.
+
I
WS (word select)
I
I
I
I
-
-
AUX (internal test)
SCK
2
2
2
2
2
S-bus
S-bus channel 0
S-bus channel 1
S-bus channel 2
S-bus channel 3
Oout
Oout
2
Oout
C-bus. Only one audio format can be
CbB
CrR
YG
TDA9984A
HBR
WS (word select)
HBR channel 0
HBR channel 1
HBR channel 2
HBR channel 3
-
-
AUX (internal test)
SCK
© NXP B.V. 2009. All rights reserved.
2
C-bus registers
21 of 40
(1)