ADV7189KST View Datasheet(PDF) - Analog Devices
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ADV7189KST Datasheet PDF : 104 Pages
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AD_SECAM_EN Enable Autodetection of SECAM (SDP),
Address 0x07, [6]
Table 32. AD_SECAM_EN Function
AD_SECAM_EN Description
0
Disable the autodetection of SECAM.
1*
Enable the detection.
*Default value.
AD_N443_EN Enable Autodetection of NTSC 443 (SDP),
Address 0x07, [5]
Table 33. AD_N443_EN Function
AD_N443_EN Description
0
Disable the autodetection of NTSC style
systems with a 4.43 MHz color subcarrier.
1*
Enable the detection.
*Default value.
AD_P60_EN Enable Autodetection of PAL60 (SDP),
Address 0x07, [4]
Table 34. AD_P60_EN Function
AD_P60_EN Description
0
Disable the autodetection of PAL systems with a
60 Hz field rate.
1*
Enable the detection.
*Default value.
AD_PALN_EN Enable Autodetection of PAL N (SDP),
Address 0x07, [3]
Table 35. AD_PALN_EN Function
AD_PALN_EN Description
0
Disable the detection of the PAL N standard.
1*
Enable the detection.
*Default value.
AD_PALM_EN Enable Autodetection of PAL M (SDP),
Address 0x07, [2]
Table 36. AD_PALM_EN Function
AD_PALM_EN
Description
0
Disable the autodetection of PAL M.
1*
Enable the detection.
*Default value.
AD_NTSC_EN Enable Autodetection of NTSC (SDP),
Address 0x07, [1]
Table 37. AD_NTSC_EN Function
AD_NTSC_EN Description
0
Disable the detection of standard NTSC.
1*
Enable the detection.
*Default value.
ADV7189
AD_PAL_EN Enable Autodetection of PAL (SDP),
Address 0x07, [0]
Table 38. AD_PAL_EN Function
AD_PAL_EN Description
0
Disable the detection of standard PAL.
1*
Enable the detection.
*Default value.
SFL_INV Subcarrier Frequency Lock Inversion (SDP)
This bit controls the behavior of the PAL switch bit in the SFL
(GenLock Telegram) data stream. It was implemented to solve
some compatibility issues with video encoders. It solves two
problems:
1. The PAL switch bit is only meaningful in PAL. Some
encoders (including Analog Devices encoders) also look at
the state of this bit in NTSC.
2. There was a design change in Analog Devices encoders
from ADV717x to ADV719x. The older versions used the
SFL (GenLock Telegram) bit directly, while the later ones
invert the bit prior to using it. The reason for this is that the
inversion compensated for the 1-line delay of an SFL
(GenLock Telegram) transmission.
As a result:
1. ADV717x encoders need the PAL switch bit in the SFL
(GenLock Telegram) to be 1 for NTSC to work.
2. ADV7190/ADV7191/ADV7194 encoders need the PAL
switch bit in the SFL to be 0 to work in NTSC.
If the state of the PAL switch bit is wrong, a 180°phase shift
occurs.
In a decoder/encoder back-to-back system in which SFL is used,
this bit must be set up properly for the specific encoder used.
Table 39. SFL_INV Function
SFL_INV
Address 0x41, [6] Description
0
SFL compatible with ADV7190/ADV7191/
ADV7194 encoders.
1*
SFL compatible with ADV717x/ADV7173x
encoders.
*Default value.
Rev. A | Page 23 of 104
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