HMP8117CNZ Intersil, HMP8117CNZ Datasheet - Page 19

• Manufacturer Part Number: HMP8117CNZ
• Description: IC VIDEO DECODER NTSC/PAL 80PQFP
• Manufacturer: Intersil
• Type: Video Decoderr

Specifications of HMP8117CNZ

• Applications: Video
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 80-MQFP, 80-PQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NOTES:
NOTES:
“RAW” VBI DATA CAPTURE
“Raw” data capture of VBI data during blanked scan lines
may be optionally implemented. In this instance, the active
line time of blanked scan lines are sampled at the CLK2 rate,
and output onto the pixel outputs. This permits software
decoding of the VBI data to be done.
The line mask registers specify on which scan lines to
generate “raw” VBI data. If the RAW VBI All bit is enabled, all
the video lines are treated as raw VBI data, excluding the
equalization and serration lines.
The start and end timing of capturing “raw” VBI data on a
scan line is determined by the Start and End Raw VBI
31. The MSB is bit number: 271 for system C, 279 for system B 525-line and 343 for system B 625-line.
32. The clock run-in is 16 bits wide for both systems and is not included in the BT.656 ancillary data stream.
33. The bit rate is 5.727272 Mbits/s for system B and C on 525/60 systems and 6.9375 and 5.734375 Mbits/second respectively for 625/50 systems.
34. Teletext VBI Video Signal
35. ep = even parity for P8-P13.
36. CRC = Sum of P8-P14 of Data ID through last user data word. Preset to all zeros, carry is ignored.
37. For 525-line system B, bits 280-343 are “0”.
38. For system C, bits 272-343 are “0”.
(B, 625-line = 43 bytes)
(B, 525-line = 35 bytes)
Data Block Number
Data Word Count
(C = 34 bytes)
PIXEL INPUT
Teletext Data
Preamble
Reserved
Data ID
CRC
TABLE 8. OUTPUTTING THE SLICED TELETEXT DATA AS BT.656 ANCILLARY DATA
CLOCK
RUN-IN
19
P15
P14
P14
P14
P14
P14
P14
P14
P14
P14
P14
0
1
1
Bit 0
FIGURE 16. TELETEXT VBI VIDEO SIGNAL
bit 6
P14
ep
ep
ep
ep
ep
ep
ep
ep
ep
0
1
1
0 = 525-line
1 = 625-line
HMP8117
P13
bit 5
0
1
1
1
0
0
0
0
0
0
0
DATA PACKET
Registers. This allows the proper capture of “raw” VBI data
regardless of the BLANK# output timing for active video.
The blanking level is subtracted from the “raw” VBI data
samples, and the result is output onto the pixel outputs.
Note both “sliced” and “raw” VBI data may be available on
the same line.
During NTSC operation, the first possible line of VBI data is
lines 10 and 272, and the last possible lines are the last
blanked scan lines. Lines 1-9 and 264-271 are always
blanked.
1 = system C
0 = system B
bit 4
P12
0
1
1
1
0
1
0
0
0
0
0
:
bit 343
bit 339
bit 7
bit 3
bit 3
P11
0
1
1
0
0
0
0
0
MSB
bit 342
bit 338
bit 6
bit 2
bit 2
P10
0
1
1
1
0
1
0
0
bit 341
bit 337
bit 5
bit 1
bit 1
P9
0
1
1
0
0
1
0
0
April 19, 2007
bit 340
bit 336
bit 4
bit 0
bit 0
FN4643.3
P8
0
1
1
0
1
0
0
0