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GS2970A Datasheet(PDF) 49 Page - Semtech Corporation

Part # GS2970A
Description  3Gb/s, HD, SD SDI Receiver Complete with SMPTE Audio and Video Processing
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

GS2970A Datasheet(HTML) 49 Page - Semtech Corporation

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GS2970A 3Gb/s, HD, SD SDI Receiver
Data Sheet
54244 - 2
September 2012
49 of 150
4.12 H:V:F Timing Signal Generation
The GS2970A extracts critical timing parameters from the received TRS words.
Horizontal blanking (H), Vertical blanking (V), and Field odd/even (F) timing are output
on the STAT[2:0] pins by default.
Using the H_CONFIG bit in the host interface, the H signal timing can be selected as one
of the following:
1. Active line blanking (H_CONFIG = LOW) - the H output is HIGH for the horizontal
blanking period, including the EAV TRS words.
2. TRS based blanking (H_CONFIG = HIGH) - the H output is set HIGH for the entire
horizontal blanking period as indicated by the H bit in the received TRS signals.
The timing of these signals is shown in the figures below.
NOTE: Both 8-bit and 10-bit TRS words are identified by the device.
Figure 4-11:H:V:F Output Timing - 3G Level A and HDTV 20-bit Mode
Figure 4-12:H:V:F Output Timing - 3G Level A and HDTV 10-bit Mode
3G Level B 20-bit Mode, each 10-bit stream
Figure 4-13:H:V:F Output Timing - 3G Level B 10-bit Mode
PCLK
LUMA DATA
CHROMA DATA
H
000
000
3FF
000
000
3FF
V
F
XYZ (SAV)
000
000
3FF
000
000
3FF
XYZ (SAV)
XYZ (EAV)
XYZ (EAV)
000
000
3FF
3FF
000
000
PCLK (HD)
H
V
F
MULTIPLEXED Y’CbCr DATA (HD)
MULTIPLEXED DS1/DS2 DATA (3G)
PCLK (3G DDR)
000
000
3FF
3FF
000
000
XYZ (EAV)
MULTIPLEXED Y’CbCr DATA (HD)
MULTIPLEXED DS1/DS2 DATA (3G)
H
V
F
PCLK (HD)
PCLK (3G DDR)
H S IGN A L T IM IN G :
H_ C O NF IG = L O W
H _ C ONF IG = H IGH
HVF T IM IN GAT SAV
HVF T IM IN GAT EAV
XYZ (EAV)
XYZ (SAV)
XYZ (SAV)
3FF
PCLK (DDR)
H
V
F
MULTIPLEXED LINKA/LINKB DATA
3FF
3FF 3FF 000 000 000 000 000 000 000 000
XYZ
(sav)
XYZ
(sav )
XYZ
(sav )
XYZ
(sav )
MULTIPLEXED LINKA/LINKB DATA
PCLK (DDR)
H
V
F
3FF
000 000 000 000 000 000 000 000
XYZ
(eav)
XYZ
(eav)
XYZ
(eav)
XYZ
(eav)
3FF 3FF 3FF
H S IGN A L T IM IN G :
H_ C O NF IG = L O W
H _ C ONF IG = H IGH
HVF T IM IN GAT EAV
HVF T IM IN GAT SAV


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