TDA9983BHW/8/C1,55 NXP Semiconductors, TDA9983BHW/8/C1,55 Datasheet - Page 21

• Manufacturer Part Number: TDA9983BHW/8/C1,55
• Description: IC HDMI TX 81MHZ 80-HTQFP
• Manufacturer: NXP Semiconductors
• Type: Transmitterr

Specifications of TDA9983BHW/8/C1,55

• Applications: Recorders, Set-Top Boxes
• Mounting Type: Surface Mount
• Package / Case: 80-TQFP Exposed Pad, 80-eTQFP, 80-HTQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935283445557

NXP Semiconductors
TDA9983B_1
Product data sheet
8.14.4.1 E-EDID reading
8.14.1 Output HDMI buffers
8.14.2 Pixel repetition
8.14.3 HDMI and DVI receiver discrimination
8.14.4 DDC channel
8.14 HDMI
8.15 Scaler unit
An external resistor must be used to set the HDMI output amplitude. It has to be
connected between pin EXT_SWING and V
To transmit video formats with pixel rates below 25 Msample/s or to increase the number
of audio sample packets in each frame, the TDA9983B uses pixel repetition to increase
the transmitted pixel clock.
Table 16.
This information is located in the E-EDID receiver part, in the ‘Vendor-Specific Data block’
within the first CEA EDID timing extension. If the 24-bit IEEE registration identifier
contains the value 00 0C03h, then the receiver will support HDMI, otherwise the device
will be treated as a DVI device. However, the TDA9983B does not have direct access to
that information since E-EDID is read by an external microprocessor through the
TDA9983B I
The DDC-bus pins DDC_SDA and DDC_SCL are 5 V tolerant and can work at standard
mode (100 kHz).
In order to get receiver capabilities, the TDA9983B must read the E-EDID of the receiver.
This is made possible by temporarily connecting the I
microprocessor is able to read full EDID.
The scaler unit has the following features:
SRL_PR[3]
0
0
0
0
0
0
0
0
1
1
1
1
•
Upscaling only: to expand input image horizontally and vertically
Pixel repetition
2
C-bus gate.
SRL_PR[2]
0
0
0
0
1
1
1
1
0
0
0
1
Rev. 01 — 20 May 2008
SRL_PR[1]
0
0
1
1
0
0
1
1
0
0
1
x
DDH(3V3)
150 MHz pixel rate HDMI transmitter
.
2
C-bus to the DDC lines, so that the
SRL_PR[0]
0
1
0
1
0
1
0
1
0
1
x
x
TDA9983B
© NXP B.V. 2008. All rights reserved.
Pixel repeated
no repetition
once
twice
3 times
4 times
5 times
6 times
7 times
8 times
9 times
undefined
undefined
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