GS1660 datasheet(39/82 Pages) SEMTECH

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GS1660 HD/SD SDI Receiver

Data Sheet

53834 - 2

September 2012

39 of 82

4.11 H:V:F Timing Signal Generation

The GS1660 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 4-5: H:V:F Output Timing - HDTV 20-bit Mode

Figure 4-6: H:V:F Output Timing - HDTV 10-bit Mode

Figure 4-7: H:V:F Output Timing - HD 20-bit Output Mode

PCLK

LUMA DATA

CHROMA DATA

000

3FF

000

3FF

XYZ (SAV)

000

3FF

000

3FF

XYZ (SAV)

XYZ (EAV)

000

3FF

000

PCLK (HD)

MULTIPLEXED Y’CbCr DATA (HD)

000

3FF

000

XYZ (EAV)

MULTIPLEXED Y’CbCr DATA (HD)

PCLK (HD)

H S I GN A L T IM IN G :

H_ C O NF IG = L O W

H _ C ONF IG = H I GH

HVF T IM IN GAT SAV

HVF T IM IN GAT EAV

XYZ (EAV)

XYZ (SAV)

P C LK

L U M A D A T A IN P U T

C HR OM A DA T A IN P U T

X Y Z (EAV)

000

00 0

3F F

000

00 0

3F F

000

00 0

3FF

000

00 0

3FF

X Y Z (EAV)

X Y Z (SAV)

H S I G NAL T IM IN G :

H_ C ONF IG = L O W

H _ C ONF IG = H I G H

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