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參數(shù)資料
| 型號(hào)： | GS1500-CQR |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | HDTV Serial Digital Deformatter with ANC FIFOs |
| 中文描述： | 高清晰度電視串行數(shù)字Deformatter與FIFO的非洲人國(guó)民大會(huì) |
| 文件頁(yè)數(shù)： | 4/17頁(yè) |
| 文件大?。?/td> | 146K |
| 代理商： | GS1500-CQR |
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GENNUM CORPORATION
522 - 33 - 00
4
G
PIN DESCRIPTIONS
NUMBER
SYMBOL
TIMING
TYPE
DESCRIPTION
1
PCLK_IN
Synchronous
wrt PCLK_IN
Input
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.
2, 4, 14, 19,
24, 37, 46, 50,
58, 69, 79, 82,
91, 94, 110,
116, 128
GND
GND
Ground power supply connections.
3, 20, 25, 38,
47, 51, 59, 68,
78, 81, 90, 93,
109, 115, 127
V
DD
Power
Positive power supply connections.
5
F_E/S
Non-
synchronous
Input
Control Signal Input.
Used to control where the FIFO_L signal is
generated. When F_E/S is high, the GS1500 generates FIFO_L
signal at EAV. When F_E/S is low, the GS1500 generates FIFO_L
signal at SAV. See Fig. 4 for timing information.
6
MUTE
Synchronous
wrt PCLK_IN
Input
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.
7
FW_EN/DIS
Non-
synchronous
Input
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.
8
CODE_PROTECT
Non-
synchronous
Input
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.
9
BP_FR
Non-
synchronous
Input
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.
10
BP_DSC
Non-
synchronous
Input
Control Signal Input.
Used to enable or disable the SMPTE 292M
descrambler. When BP_DSC is low, the internal SMPTE 292M de-
scrambler is enabled. When BP_DSC is high, the internal SMPTE
292M de-scrambler is bypassed.
11
WB_NI
Non-
synchronous
Input
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.
12
TRS_Y/C
Non-
synchronous
Input
Control Signal Input.
Used to control whether LUMA or CHROMA
TRS ID's 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.
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