參數(shù)資料
型號： GS1503-CFZ
廠商： Gennum Corporation
元件分類： Codec
英文描述： HD EMBEDDED AUDIO CODEC
中文描述： 高清嵌入式音頻編解碼
文件頁數(shù)： 1/83頁
文件大?。?/td> 815K
代理商： GS1503-CFZ
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: May 2005
Document No. 15879 - 4
DATA SHEET
G
FEATURES
complies with SMPTE 292M and SMPTE 299M
single chip HD embedded audio solution
operates as an embedded audio multiplexer or
demultiplexer
full support for 48kHz synchronous 24-bit audio
support for 8 channels of audio per device
cascadable architecture supports up to 16 audio channels
integrated scrambler/descrambler and word alignment
CRC error detection and insertion
audio control packet insertion and extraction
arbitrary data packet insertion and extraction
3.3V power supply with 5V tolerant I/O
144 pin LQFP package
APPLICATIONS
HD SDI Embedded Audio
DESCRIPTION
The GS1503 is a highly integrated, single chip solution for
embedding/extracting digital audio streams into and out of
high definition digital video signals. The GS1503 supports
insertion/extraction of 24-bit synchronous audio data with a
48kHz sample rate. Audio signals with different sample
rates may be converted to 48kHz by using audio sample
rate converters before or after the GS1503.
Each GS1503 supports all processing required for
embedding/extracting up to eight digital audio channels in
the horizontal ancillary data space of the video chroma
channel. Two GS1503’s can be cascaded for insertion/
extraction of up to 16 audio channels with no external glue
logic.
The GS1503 supports embedding/extracting of audio
control and arbitrary data packets in the horizontal ancillary
data space of the video luma channel. It also supports line
CRC detection and insertion.
The GS1503 supports HD video standards at 74.25MHz
and 74.25/1.001MHz rates. It has an on chip SMPTE
compliant scrambler/de-scrambler, and integrated word
alignment. Use the GS1503 with Gennum’s GS1545 or
GS1522 for two chip HD SDI receive or transmit solutions.
The GS1503 operates from a single 3.3V power supply with
5V tolerant I/O and is packaged in a 144 pin LQFP
package.
MULTIPLEX MODE BLOCK DIAGRAM
ORDERING INFORMATION
PART NUMBER
PACKAGE
TEMPERATURE
GS1503-CFZ
144 pin LQFP
0°C to 70°C
VIN[19:0]
20
Video Detection &
Synchronization
20
VOUT[19:0]
ANCI Timing
Generation
4
VIDEO_DET
OPERATE
ERROR
CRC_ERR
De-scrambler &
Word Alignment
20
CRC Inserter &
Scrambler
TRS
Inserter
20
DSCBYPASS
SCRBYPASS
Host
Interface
Audio
Input
Interface
AIN1/2
AIN3/4
AIN5/6
AIN7/8
CPUADR[8:0]
CPUDAT[7:0]
4
9
8
2
WCINA/B
3
Arbitrary
Packet
Mux
Audio
Packet
Mux
Control
Packet
Mux
HOST INTERFACE
HOST INTERFACE
8
PKT[7:0]
PKTEN
PKTENO
4
VM[3:0]
MUTE
AM[1:0]
20
EXTF
EXTH
2
CPUCS, CPUWE,
CPURE
GS1503
HD EMBEDDED AUDIO CODEC
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