GS1510 데이터 시트보기 (PDF) - Gennum -> Semtech
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GS1510 Datasheet PDF : 11 Pages
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PIN DESCRIPTIONS
NUMBER
1
SYMBOL
PCLK_IN
2, 4, 14, 19, 24, 37,
46, 50, 58, 69, 79,
82, 91, 94, 110,
116, 128
3, 20, 25, 38, 47,
51, 59, 68, 78, 81,
90, 93, 109, 115,
127
5
GND
VDD
F_E/S
6
MUTE
7
FW_EN/DIS
8
CODE_PROTECT
9
BP_FR
10
BP_DSC
11
WB_NI
12
TRS_Y/C
TIMING
Synchronous
wrt PCLK_IN
TYPE
Input
Gnd
DESCRIPTION
Input Clock. The device uses PCLK_IN for clocking the input
data stream into DATA_IN[19:0]. This clock is generated by
the GS1545 or GS1540
Ground power supply connections.
Power Positive power supply connections.
Non-
synchronous
Synchronous
wrt PCLK_IN
Non-
synchronous
Non-
synchronous
Non-
synchronous
Non-
synchronous
Non-
synchronous
Non-
synchronous
Input
Input
Input
Input
Input
Input
Input
Input
Control Signal Input. Used to control where the FIFO_L signal
is generated. When F_E/S is high, the GS1510 generates
FIFO_L signal at EAV. When F_E/S is low, the GS1510
generates FIFO_L signal at SAV. See Fig. 4 for timing
information.
Control Signal Input. Used to enable or disable blanking of
the LUMA (DATA_OUT[19:10]) and CHROMA
(DATA_OUT[9:0]). When MUTE is low, the device sets the
accompanying LUMA and CHROMA data to their appropriate
blanking levels. When MUTE is high, the LUMA and CHROMA
data streams pass through this stage of the device unaltered.
Control Signal Input. Used to enable or disable the internal
flywheel. When FW_EN/DIS is high, the internal flywheel is
enabled. When FW_EN/DIS is low, the internal fly-wheel is
disabled.
Control Signal Input. Used to enable or disable re-mapping of
out-of-range words contained in the active portion of the video
signal. When this signal is high, the device re-maps out-of-
range words contained within the active portion of the video
signal into CCIR-601 compliant words. Values between
000-003 are re-mapped to 004. Values between 3FC and 3FF
are re-mapped to 3FB. When this signal is low, out-of-range
words in the active video region pass through the device
unaltered.
Control Signal Input. Used to enable or disable word
boundary framing. When BP_FR is low internal framing is
enabled. When BP_FR is high internal framing is bypassed.
Control Signal Input. Used to enable or disable the SMPTE
292M descrambler. When BP_DSC is low, the internal SMPTE
292M descrambler is enabled. When BP_DSC is high, the
internal SMPTE 292M de-scrambler is bypassed.
Control Signal Input. Used to enable or disable noise immune
operation of the word boundary framer. When WB_NI is high,
noise-immune word boundary alignment is enabled. The
device switches to a new word boundary only when it has
detected two consecutive identical new TRS positions. When
WB_NI is low, the device re-aligns the word boundary position
at every instance of a TRS.
Control Signal Input. Used to control whether LUMA or
CHROMA TRS IDs are detected and used. When TRS_Y/C is
high, the device detects and uses TRS signals embedded in
the LUMA channel. When TRS_Y/C is low, the device detects
and uses TRS signals embedded in the CHROMA channel.
4
GENNUM CORPORATION
522 - 47 - 02
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