ADV7173KST Analog Devices Inc, ADV7173KST Datasheet - Page 29

• Manufacturer Part Number: ADV7173KST
• Description: IC DAC VIDEO NTSC 6-CH 48LQFP
• Manufacturer: Analog Devices Inc
• Type: Video Encoderr

Specifications of ADV7173KST

• Rohs Status: RoHS non-compliant
• Applications: Multimedia
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Number Of Dac's: 6
• Adc/dac Resolution: 10b
• Screening Level: Commercial
• Package Type: LQFP
• Pin Count: 48
• For Use With: EVAL-ADV7173EBM - BOARD EVAL FOR ADV7173
• Voltage - Supply, Digital: -
• Lead Free Status / RoHS Status: Not Compliant

MODE REGISTER 3 MR3 (MR37–MR30)
(Address (SR4–SR0) = 03H)
Mode Register 3 is an 8-bit-wide register. Figure 47 shows the
various operations under the control of Mode Register 3.
MR3 BIT DESCRIPTION
Revision Code (MR31–MR30)
This bit is read-only and indicates the revision of the device.
VBI_Open (MR32)
This bit determines whether or not data in the vertical blank-
ing interval (VBI) is output to the analog outputs or blanked.
VBI_Open is available in all timing modes. Also, if both BLANK
input (TR03) and VBI_Open are enabled, TR03 takes priority.
Teletext Enable (MR33)
This bit must be set to “1” to enable teletext data insertion on
the TTX pin.
MR37
0
1
ACTIVE VIDEO
FILTER
MR37
ENABLE
DISABLE
MR36
0
0
1
1
CLOSED CAPTIONING
MR35
FIELD SELECTION
0
1
0
1
MR36
NO DATA OUT
ODD FIELD ONLY
EVEN FIELD ONLY
DATA OUT
(BOTH FIELDS)
MR35
MR34
MODE CONTROL
0
1
TTXRQ BIT
MR34
DISABLE
ENABLE
MR33
TTXRQ Bit Mode Control (MR34)
This bit enables switching of the teletext request signal from a
continuous high signal (MR34 = “0”) to a bit wise request
signal (MR34 = “1”).
Closed Captioning Field Selection (MR36–MR35)
These bits control the fields that closed captioning data is dis-
played on. Closed captioning information can be displayed on
an odd field, even field, or both fields.
Active Video Filter (MR37)
This bit controls the filter mode applied outside the active video
portion of the line. This filter ensures that the sync rise and
fall times are always on spec regardless of which luma filter
is selected.
0
1
TELETEXT
ENABLE
MR33
DISABLE
ENABLE
MR32
0
1
VBI OPEN
MR32
DISABLE
ENABLE
MR31
RESERVED FOR
REVISION CODE
MR31
MR30
ADV7172/ADV7173
MR30