ADV7181BCP Analog Devices Inc, ADV7181BCP Datasheet - Page 22

• Manufacturer Part Number: ADV7181BCP
• Description: IC VIDEO DECODER NTSC 64-LFCSP
• Manufacturer: Analog Devices Inc
• Type: Video Decoderr

Specifications of ADV7181BCP

• Applications: Recorders, Set-Top Boxes
• Voltage - Supply, Analog: 3.15 V ~ 3.45 V
• Voltage - Supply, Digital: 1.65 V ~ 2 V
• Mounting Type: Surface Mount
• Package / Case: 64-LFCSP
• Adc/dac Resolution: 9b
• Screening Level: Industrial
• Package Type: LFCSP EP
• Pin Count: 64
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: EVAL-ADV7181BEB - BOARD EVALUATION FOR ADV7181
• Lead Free Status / RoHS Status: Compliant, Contains lead / RoHS non-compliant

ADV7181
AD_SEC525_EN Enable Autodetection of SECAM 525
Line Video, Address 0x07 [7]
Table 30. AD_SEC525_EN Function
AD_SEC525_EN
0 (default)
1
AD_SECAM_EN Enable Autodetection of SECAM,
Address 0x07 [6]
Table 31. AD_SECAM_EN Function
AD_SECAM_EN
0
1 (default)
AD_N443_EN Enable Autodetection of NTSC443,
Address 0x07 [5]
Table 32. AD_N443_EN Function
AD_N443_EN
0
1 (default)
AD_P60_EN Enable Autodetection of PAL60,
Address 0x07 [4]
Table 33. AD_P60_EN Function
AD_P60_EN
0
1 (default)
AD_PALN_EN Enable Autodetection of PAL N,
Address 0x07 [3]
Table 34. AD_PALN_EN Function
AD_PALN_EN
0
1 (default)
AD_PALM_EN Enable Autodetection of PAL M,
Address 0x07 [2]
Table 35. AD_PALM_EN Function
AD_PALM_EN
0
1 (default)
Enable the detection.
Enable the detection.
Enable the detection.
Enable the detection.
Enable the detection.
Description
Disable the autodetection of SECAM.
Description
Disable the autodetection of NTSC style
systems with a 4.43 MHz color subcarrier.
Description
Disable the autodetection of PAL systems
with a 60 Hz field rate.
Description
Disable the detection of the PAL N standard.
Description
Disable the autodetection of PAL M.
Disable the autodetection of a 525-line
system with a SECAM style, FM-modulated
color component.
Enable the detection.
Description
Rev. B | Page 22 of 104
AD_NTSC_EN Enable Autodetection of NTSC,
Address 0x07 [1]
Table 36. AD_NTSC_EN Function
AD_NTSC_EN
0
1 (default)
AD_PAL_EN Enable Autodetection of PAL,
Address 0x07 [0]
Table 37. AD_PAL_EN Function
AD_PAL_EN
0
1 (default)
SFL_INV Subcarrier Frequency Lock Inversion
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:
•
•
As a result:
•
•
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 38. SFL_INV Function
SFL_INV
Address 0x41 [6]
0
1 (default)
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.
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. This is because the inversion
compensated for the 1-line delay of an SFL (GenLock
Telegram) transmission.
ADV717x encoders need the PAL switch bit in the SFL
(GenLock Telegram) to be 1 for NTSC to work.
ADV7190/ADV7191/ADV7194 encoders need the PAL
switch bit in the SFL to be 0 to work in NTSC.
Description
Disable the detection of standard NTSC.
Enable the detection.
Description
Disable the detection of standard PAL.
Enable the detection.
Description
SFL-compatible with ADV7190/ADV7191/
ADV7194 encoders.
SFL-compatible with ADV717x/ADV7173x
encoders.