ADV7188BSTZ Analog Devices Inc, ADV7188BSTZ Datasheet - Page 69

• Manufacturer Part Number: ADV7188BSTZ
• Description: IC DECODER VID MULTIFORM 80LQFP
• Manufacturer: Analog Devices Inc
• Type: Video Decoderr

Specifications of ADV7188BSTZ

• Applications: Set-Top Boxes, Video Players, Recorders
• Voltage - Supply, Analog: 3.15 V ~ 3.45 V
• Voltage - Supply, Digital: 1.65 V ~ 2 V
• Mounting Type: Surface Mount
• Package / Case: 80-LQFP
• Resolution (bits): 12bit
• Input Format: Analog
• Output Format: Digital
• Adc Sample Rate: 54MSPS
• No. Of Input Channels: 12
• Supply Voltage Range: 3V To 3.6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Table 83. GS/VPS/PDC/UTC Readback Registers
Signal Name
GS_VPS_PDC_UTC_BYTE_0 [7:0]
GS_VPS_PDC_UTC_BYTE_1 [7:0]
GS_VPS_PDC_UTC_BYTE_2 [7:0]
GS_VPS_PDC_UTC_BYTE_3 [7:0]
VPS_PDC_UTC_BYTE_4 [7:0]
VPS_PDC_UTC_BYTE_5 [7:0]
VPS_PDC_UTC_BYTE_6 [7:0]
VPS_PDC_UTC_BYTE_7 [7:0]
VPS_PDC_UTC_BYTE_8 [7:0]
VPS_PDC_UTC_BYTE_9 [7:0]
VPS_PDC_UTC_BYTE_10 [7:0]
VPS_PDC_UTC_BYTE_11 [7:0]
VPS_PDC_UTC_BYTE_12 [7:0]
1
PDC/UTC
PDC and UTC are data transmitted through Teletext Packet 8/30
Format 2 (Magazine 8, Row 30, Design Code 2 or 3), and Packet 8/30
Format 1 (Magazine 8, Row 30, Design Code 0 or 1). Therefore, if
PDC or UTC data is to be read through I
teletext standard (WST or PAL System B) should be decoded by
VDP. The whole teletext decoded packet is output on the ancillary
data stream. The user can look for the magazine number, row
number, and design code and qualify the data as PDC, UTC, or
neither of these.
If PDC/UTC packets are identified, Byte 0 to Byte 12 are updated to
the GS_VPS_PDC_UTC_0 to VPS_PDC_UTC_12 registers and
the GS_VPS_PDC_UTC_AVL bit is set. The full packet data is
also available in the ancillary data format.
Note that the data available in the I
status of the WST_PKT_DECODE_DISABLE bit (Bit 3,
Subaddress 0x60, user sub map).
VBI System 2
The user can choose to use an alternative VBI data slicer, called
VBI System 2. This data slicer is used to decode Gemstar and
closed caption VBI signals only.
Using this system, the Gemstar data is only available in the ancillary
data stream. A special mode enables one line of data to be read
back via I
representative for an engineering note on ADV7188 VBI
processing.
Gemstar Data Recovery
The Gemstar-compatible data recovery block (GSCD) supports
Gemstar 1× and Gemstar 2× data transmissions. In addition, it
can serve as a decoder for closed captioning. Gemstar-compatible
The register is a readback register; the default value does not apply.
2
C. For more information, contact an Analog Devices
2
C register depends on the
2
C, the corresponding
Register Location
VDP_GS_VPS_PDC_UTC_0 [7:0]
VDP_GS_VPS_PDC_UTC_1 [7:0]
VDP_GS_VPS_PDC_UTC_2 [7:0]
VDP_GS_VPS_PDC_UTC_3 [7:0]
VDP_VPS_PDC_UTC_4 [7:0]
VDP_VPS_PDC_UTC_5 [7:0]
VDP_VPS_PDC_UTC_6 [7:0]
VDP_VPS_PDC_UTC_7 [7:0]
VDP_VPS_PDC_UTC_8 [7:0]
VDP_VPS_PDC_UTC_9 [7:0]
VDP_VPS_PDC_UTC_10 [7:0]
VDP_VPS_PDC_UTC_11 [7:0]
VDP_VPS_PDC_UTC_12 [7:0]
1
Rev. A | Page 69 of 112
data transmissions can occur only in NTSC mode. Closed
caption data can be decoded in both PAL and NTSC modes.
The block is configured via the I
•
•
•
The recovered data is not available through I
into the horizontal blanking period of an ITU-R BT.656-com-
patible data stream. The data format is intended to comply
with the ITU-R BT.1364 recommendation by the International
Telecommunications Union. For more information, visit the
International Telecommunications Union’s website. See Figure 43.
GDE_SEL_OLD_ADF, Address 0x4C [3], User Map
The ADV7188 has an ancillary data output block that can be used
by the VDP data slicer and the VBI System 2 data slicer. The new
ancillary data formatter is used by setting GDE_SEL_OLD_ADF to
0 (this is the default setting). If this bit is set low, refer to Table 71
and Table 72 for information about how the data is packaged in
the ancillary data stream.
To use the old ancillary data formatter (to be backward com-
patible with the ADV7189B), set GDE_SEL_OLD_ADF to 1.
The ancillary data format in this section refers to the ADV7189B-
compatible ancillary data formatter.
0 (default)—Enables the new ancillary data system (for use with
VDP and VBI System 2)
1—Enables the old ancillary data system (for use with VBI
System 2 only; ADV7189B compatible).
GDECEL [15:0] allows data recovery for selected video
lines on even fields to be enabled and disabled.
GDECOL [15:0] enables the data recovery for selected lines
for odd fields.
GDECAD configures the way in which data is embedded
in the video data stream.
Dec
132d
133d
134d
135d
136d
137d
138d
139d
140d
141d
142d
143d
144d
2
Address (User Sub Map)
C in the following ways:
2
C, but is inserted
Hex
0x84
0x85
0x86
0x87
0x88
0x89
0x8A
0x8B
0x8C
0x8D
0x8E
0x8F
0x90
ADV7188