GS1501 Gennum Corporation, GS1501 Datasheet - Page 5

• Manufacturer Part Number: GS1501
• Description: Hd-linx (tm) THDTV Serial Digital Formatter With Anc Fifos
• Manufacturer: Gennum Corporation

1.2 PIN DESCRIPTIONS (Continued)
GENNUM CORPORATION
26, 27, 28, 29,
30, 31, 32, 33,
34, 65, 66, 67,
64, 63, 62, 61,
60, 57, 56, 55,
54, 53, 52, 49,
48, 45, 44, 43,
PIN NUMBER
42, 41, 40, 39
71, 72,
13
15
16
21
22
23
35
36
70
DATA_OUT[19:0]
(Continued)
(Continued)
(Continued)
CRC_INS
TRS_INS
LN_INS
NAME
TEST
OEN
NC
TN
H
V
F
Characteristic
synchronous
synchronous
synchronous
Synchronous
wrt PCLK_IN
Synchronous
wrt PCLK_IN
Synchronous
wrt PCLK_IN
Synchronous
wrt PCLK_IN
Electrical
s section
See A/C
TIMING
Non-
Non-
Non-
N/A
N/A
N/A
Outputs
TYPE
Input
Input
Input
Input
Input
Input
TEST
Input
TEST
5
Control Signal Input. Used to enable or disable insertion of TRS
into the video streams. When TRS_INS is high, the device
inserts SMPTE 292M compliant TRS signals into the input LUMA
and CHROMA data streams based on the supplied HVF
signals. When TRS_INS is low, the device does not insert TRS
signals.
Control Signal Input. Used to enable or disable insertion of line
numbers into the video stream. When LN_INS is high, the
device inserts SMPTE 292M compliant line number information
into the LUMA and CHROMA channels. When LN_INS is low,
the device does not insert the line number information into the
LUMA and CHROMA channels. Line number insertion is only
available when user supplied external FVH data is used
(DET_TRS set LOW).
Control Signal Input. Used to enable or disable insertion of
CRC's into the video stream. When CRC_INS is high, the device
calculates and inserts line based CRCs. When CRC_INS is low,
this feature is disabled.
Control Signal Input. This signal indicates the Horizontal
blanking period of the input video data stream. The device
inserts HDTV TRS based on the supplied HVF signals. Refer to
Figure 4 for required timing of H relative to LUMA
(DATA_IN[19:10]) and CHROMA (DATA_IN[9:0]).
Control Signal Input. This signal indicates the vertical blanking
period of the input video data streams. Refer to Figure 4 for
required timing of V relative to LUMA (DATA_IN[19:10]) and
CHROMA (DATA_IN[9:0]).
Control Signal Input. This signal indicates the ODD/EVEN field
of the input video data streams. Refer to Figure 4 for required
timing of F relative to LUMA (DATA_IN[19:10]) and CHROMA
(DATA_IN[9:0]). When the input video format is progressive
scan, F should remain low at all times.
No Connect. Do not connect these pins
Test Pin. Used for test purposes only. This pin must be
connected to V
Control Signal Input. Used to enable DATA_OUT[19:0] output
bus or set it to a high Z state. When OEN is low, the
DATA_OUT[19:0] bus is enabled. When OEN is high, the
DATA_OUT[19:0] bus is disabled and in a high Z state.
Output Data Bus. The device generates a 20 bit wide data
stream running at 74.25 (or 74.25/1.001) MHz. DATA_OUT[19]
is the MSB and DATA_OUT[0] is the LSB.
Test Pin. Used for test purposes only. This pin must be
connected to GND for normal operation.
DD
for normal operation
DESCRIPTION
52234 - 4