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GS1661 Datasheet(PDF) 48 Page - Semtech Corporation

Part # GS1661
Description  HD/SD SDI Receiver, with Integrated Adaptive Cable Equalizer complete with SMPTE Video Processing
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

GS1661 Datasheet(HTML) 48 Page - Semtech Corporation

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GS1661 HD/SD SDI Receiver
Data Sheet
53751 - 3
September 2012
48 of 84
NOTE: In certain systems, due to greater ppm offsets in the crystal, the ‘M’ bit may not
assert properly. In such cases, bits 3:0 in Register 06Fh can be increased to a maximum
value of 4.
By default (after power up or after systems reset), the four RASTER_STRUCTURE,
VD_STD, STD_LOCK and INT/PROG registers are set to zero. These registers are also
cleared when the SMPTE_BYPASS pin is LOW.
296M (HD)
1280x720/30 (1:1)
0
750
720
1280
3300
02h
1280x720/30 (1:1) –
EM
0
750
720
2880
3300
03h
1280x720/50 (1:1)
0
750
720
1280
1980
04h
296M (HD)
1280x720/50 (1:1) –
EM
0
750
720
1728
1980
05h
1280x720/25 (1:1)
0
750
720
1280
396006h
1280x720/25 (1:1) –
EM
0
750
720
3456
3960
07h
1280x720/24 (1:1)
0
750
720
1280
4125
08h
1280x720/24 (1:1) –
EM
0
750
720
3600
4125
09h
1280x720/60 (1:1)
0
750
720
1280
1650
00h
1280x720/60 (1:1) –
EM
0
750
720
1440
1650
01h
125M (SD)
1440x487/60 (2:1)
1
525
244 or 243
1440
1716
16h
1440x507/60
1
525
254 or 253
1440
1716
17h
525-line 487 generic
1
525
−−
1716
19h
525-line 507 generic
1
525
−−
1716
1Bh
ITU-R
BT.656
(SD)
1440x576/50 (2:1) Or
dual link progressive)
1
625
1440
1728
18h
625-line generic
1
625
−−
1728
1Ah
Unknown
HD
SD/HD = 0
0
−−
1Dh
Unknown
SD
SD/HD = 1
1
−−
1Eh
NOTES:
1. The Line Numbers in brackets refer to version zero SMPTE 352M packet locations, if they are different
from version 1.
2. The part may provide full or limited functionality with standards that are not included in this table.
Please consult a Semtech technical representative.
3. For SD-SDI streams, the device can report an incorrect M value when SMPTE-352M packets are present.
Table 4-11: Supported Video Standard Codes (Continued)
SMPTE
Standard
Active Video Area
RATE_
DET
SD/HD
Lines
per
Frame
Active
Lines per
Frame
Words
per
Active
Line
Words
per Line
VD_STD
[5:0]


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