Datasheet > GS1500-CQR

GS1500-CQR

更新时间： 2025-03-17 07:02:03

品牌	Logo	应用领域
GENNUM		电视先进先出芯片
页数	文件大小	规格书
17页	148K
描述
HDTV Serial Digital Deformatter with ANC FIFOs

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GS1500-CQR 数据手册

™

HD-LINX GS1500

HDTV Serial Digital Deformatter

with ANC FIFOs

PRELIMINARY DATA SHEET

FEATURES

DESCRIPTION

• SMPTE 292M compliant

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.

• 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

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.

• 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

ORDERING INFORMATION

PART NUMBER

PACKAGE

TEMPERATURE

• 5V tolerant I/O

GS1500-CQR

128 pin MQFP

0°C to 70°C

APPLICATIONS

SMPTE 292M Serial Digital Interfaces.

TRS_Y/C

FM_I/E

R_CLK

FW_EN/DIS

FAST_LOCK

F_E/S

EX/CP

WB_NI

BP_DSC

BP_FR

TRS_INS

LN_INS

CRC_INS

CODE

PROTECT

MUTE

ANC_Y/C

ANC/DATA

RESET

DATA_OUT

[19:10]

(LUMA)

TRS DETECTION

FLYWHEEL

DATA_IN

[19:0]

CRC

CALCULATION

ILLEGAL CODE REMAPPING

TRS,

LNUM,

AND CRC

INSERTION

DATA_OUT

[9:0]

(CHROMA)

INPUT

BUFFER

DESCRAMBLE

FRAME

STANDARD

DETECTION

ANC DATA DETECTION &

EXTRACTION FIFO'S

CRC

COMPARISON

TRS

EXTRACTION

PCLK_IN

[H:V:F]

ANC_OUT

[9:0]

FF_STA

[2:0]

FFRST

FOEN

FIFO_L

OEN

VD_STD

[3:0]

ANC_DATA

[Y:C]

YCS_ERR

CCS_ERR

LN_ERR

SAV_ERR

EAV_ERR

REN

WEN

LINE_CRC_ERR[Y:C]

BLOCK DIAGRAM

Revision Date: November 2000

Document No. 522 - 33 - 00

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

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与GS1500-CQR相关器件

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