GS9023 Datasheet, PDF (1/33 Pages) List of Unclassifed Manufacturers – Embedded Audio CODEC

FEATURES
• single chip embedded audio solution
• operates as an embedded audio multiplexer or
demultiplexer
• full support for 48kHz synchronous 20/24 bit audio
• 4 channels of audio per GS9023
• cascadable architecture supports additional audio
channels
• multiplexes and demultiplexes arbitrary ANC data
packets
• support for 143, 177, 270, 360 and 540 Mb/s video
standards
• full processing of audio parity, channel status and
user data
• multiplexes and demultiplexes audio control packets
• EDH generation and insertion when in Multiplex Mode
• 3.3V core with 3.3V or 5V I/O (requires 5V supply)
• complies with SMPTE 272M A, B, and C
APPLICATIONS
SDI Embedded Audio
ORDERING INFORMATION
PART NUMBER
PACKAGE
GS9023-CFY
100 pin LQFP
TEMPERATURE
0°C to 70°C
GENLINX ^™II GS9023
Embedded Audio CODEC
PRELIMINARY DATA SHEET
DESCRIPTION
The GS9023 is a highly integrated, single chip solution for
the multiplexing/demultiplexing of digital audio channels
into and out of digital video signals. The GS9023 supports
the multiplexing/demultiplexing of 20 or 24 bit synchronous
audio data with a 48kHz sample rate. Audio signals with
different sample rates may be sample rate converted to
48kHz before and after the GS9023 using audio sample
rate converters.
Each GS9023 supports all the processing required to
handle the multiplexing/demultiplexing of four digital audio
channels. To simplify system design, the GS9023
seamlessly integrates with common AES/EBU digital audio
receivers and transmitters. The cascadable architecture
allows for the multiplexing/demultiplexing of additional
audio channels with no external glue logic.
The GS9023 supports video standards with rates from
143Mb/s to 540Mb/s. When in Multiplex Mode, the GS9023
supports the generation and insertion of EDH information
according to SMPTE RP165. In combination with Gennum’s
GS9032, the GS9023 provides a low power, highly
integrated two chip solution for SDI transmit applications. In
combination with Gennum’s GS7005, the GS9023 provides
a low power, highly integrated two chip solution for SDI
receive applications.
The GS9023 requires a 3.3V power supply for internal core
logic and a 3.3V or 5V power supply for device I/O.
2
WCINA/B
3
AINA/B
AUXEN
3
AM[2:0]
SAFA/B
CSA/B ⁸
UDA/B
VFLA/B
Convert Input
Data Format
Convert
AES/EBU
Format
MPX
Convert
Control
Code
Add
CRC
S/P
MPX
10
10
Audio
Buffer
MPX
10
10
MUTE
ADDR[3:0] ⁷
CS, WE, RE
8
DATA[7:0]
10
DIN[9:0]
Control
Registers
Generate
Audio
Packets
8
VM[2:0]
3
Video Detection
& Synchronization
Generate
ANCI area
Arbitrary
Packet
Buffer
9
MPX
10
MPX
Add
10 ^EDH 10 ^DOUT[9:0]
9
10
b9=b8
LOCK
PKT[8:0]
MULTIPLEX MODE BLOCK DIAGRAM
EDH_INS
Revision Date: November 2000
Document No. 522 - 45 - 05
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3
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