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)： 1/17頁(yè)
文件大?。?/td> 146K
代理商： GS1500-CQR
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3
Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 E-mail: info@gennum.com
www.gennum.com
Revision Date: November 2000
Document No. 522 - 33 - 00
PRELIMINARY DATA SHEET
G
FEATURES
SMPTE 292M compliant
standards detection/indication for SMPTE 292M levels
A/B,C,D/E,F,G/H,I,J/K,L/M
NRZI decoding and SMPTE descrambling with
BYPASS option
line CRC calculation, comparison
selectable line based CRC re-insertion
H, V, F timing reference signal (TRS) extraction
selectable flywheel for noise immune H, V, F extraction
selectable automatic switch line handling
selectable TRS and line number re-insertion
selectable active picture illegal code re-mapping
ANC data position indication
ANC data extraction via internal FIFOs
(1024 bytes on Y and C channels)
configurable FIFO LOAD pulse
20 bit 3.3V CMOS input data bus
optimized input interface to GS1545 or GS1540
single +3.3V power supply
5V tolerant I/O
APPLICATIONS
SMPTE 292M Serial Digital Interfaces.
DESCRIPTION
When interfaced to the Gennum GS1545 HDTV Equalizing
Receiver or GS1540 Non-Equalizing Receiver, the GS1500
performs the final conversion to word aligned data. The
device performs NRZI decoding and de-scrambling as per
SMPTE 292M and word-aligns to the incoming data stream.
Line based CRCs are calculated on the incoming data
stream and are compared against the CRCs embedded
within the data stream.
HVF timing information is extracted from the data stream. A
selectable internal HVF flywheel provides superior noise
immunity against TRS signal errors. The device also detects
and indicates the input video signal standard.
The GS1500 can detect and re-map illegal code words
contained within the active portion of the video signal. The
positions of the embedded ANC data are indicated and the
ANC data may be extracted and accessed by the user
through an internal FIFO interface. Prior to exiting the
device, TRS, Line Numbers and CRCs based on internal
calculations may be re-inserted into the data stream.
BLOCK DIAGRAM
ORDERING INFORMATION
PART NUMBER
PACKAGE
TEMPERATURE
GS1500-CQR
128 pin MQFP
0°C to 70°C
INPUT
BUFFER
DESCRAMBLE
FRAME
PCLK_IN
DATA_IN
[19:0]
WB_NI
BP_DSC
BP_FR
[H:V:F]
LN_ERR
SAV_ERR
EAV_ERR
VD_STD
[3:0]
LINE_CRC_ERR[Y:C]
CRC
CALCULATION
CRC
COMPARISON
CODE
PROTECT
ANC_OUT
[9:0]
ANC_DATA
[Y:C]
FF_STA
[2:0]
TRS_INS
LN_INS
CRC_INS
DATA_OUT
[19:10]
(LUMA)
DATA_OUT
[9:0]
(CHROMA)
TRS,
LNUM,
AND CRC
INSERTION
FW_EN/DIS
FAST_LOCK
RESET
TRS_Y/C
F_E/S
MUTE
EX/CP
ANC_Y/C
FM_I/E
R_CLK
ANC/DATA
REN
WEN
OEN
3
2
10
3
2
4
3
3
2
2
TRS DETECTION
FLYWHEEL
STANDARD
DETECTION
TRS
EXTRACTION
ILLEGAL CODE REMAPPING
ANC DATA DETECTION &
EXTRACTION FIFO'S
3
YCS_ERR
CCS_ERR
FFRST
FOEN
FIFO_L
2
2
2
2
HD-LINX
GS1500
HDTV Serial Digital Deformatter
with ANC FIFOs
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