GS9023B Datasheet, PDF (1/56 Pages) Gennum Corporation – Embedded Audio CODEC

GENLINX® II GS9023B Embedded Audio CODEC
Key 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 GS9023B
• 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
Brief Description
The GS9023B is a highly integrated, single chip solution for
the multiplexing/demultiplexing of digital audio channels
into and out of digital video signals. The GS9023B 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 GS9023B
using audio sample rate converters.
Each GS9023B supports all the processing required to
handle the multiplexing/demultiplexing of four digital
audio channels. To simplify system design, the GS9023B
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 GS9023B supports video standards with rates from
143Mb/s to 540Mb/s. When in Multiplex Mode, the
GS9023B supports the generation and insertion of EDH
information according to SMPTE RP165. In combination
with Gennum’s GS9032, the GS9023B provides a low
power, highly integrated two chip solution for SDI transmit
applications. In combination with Gennum’s GS7005, the
GS9023B provides a low power, highly integrated two chip
solution for SDI receive applications.
The GS9023B requires a 3.3V power supply for internal
core logic and a 3.3V or 5V power supply for device I/O.
GS9023B GENLINX® II GS9023B Embedded Audio
CODEC
Data Sheet
37954 - 2
December 2009
www.gennum.com
1 of 56
Proprietary & Confidential