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The GS9023A is a highly integrated, single chip solution for the multiplexing/demultiplexing of digital audio channels into and out of digital video signals. The GS9023A 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 GS9023A using audio sample rate converters.
Each GS9023A supports all the processing required to handle the multiplexing/demultiplexing of four digital audio channels. To simplify system design, the GS9023A 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 GS9023A supports video standards with rates from 143Mb/s to 540Mb/s. When in Multiplex Mode, the GS9023A supports the generation and insertion of EDH information according to SMPTE RP165. In combination with Gennum's GS9032, the GS9023A provides a low power, highly integrated two chip solution for SDI transmit applications. In combination with Gennum's GS7005, the GS9023A provides a low power, highly integrated two chip solution for SDI receive applications.
The GS9023A requires a 3.3V power supply for internal core logic and a 3.3V or 5V power supply for device I/O.
GS9023A Maximum Ratings
I/O Supply Voltage -0.3 to 7.0V Internal Supply Voltage -0.3 to 4.0V Input Voltage (any input) -0.3 to VDDIO + 0.5V Operating Temperature 0 to 70 Storage Temperature -65 to 150 Lead Temperature (Soldering, 10 sec.) 230
GS9023A 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 GS9023A • 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
GS9023A Typical Application
SDI Embedded Audio
GS9023A Connection Diagram
GS9024 General Description
The GS9024 is a high performance automatic cable equalizer designed for serial digital data rates from 143Mb/s to 540Mb/s. The GS9024 receives either single-ended or differential serial data and outputs equalized differential signals at PECL levels (800mV). The GS9024 provides up to 40dB of gain at 200MHz which will typically result in equalization of greater than 350m at 270Mb/s of Belden 8281 cable.
The GS9024 incorporates an analog signal strength indicator/carrier detect (SSI/CD) output indicating both the presence of a carrier and the amount of equalization applied to the signal. Optional external resistors allow the carrier detect threshold level to be customized to the user's requirement.
The GS9024 also features selectable High Z serial data outputs eliminating the need for input muxing circuitry in routers. In addition, the GS9024 provides an 'Output Eye Monitor' (OEM) which allows the verification of signal integrity after equalization, prior to reslicing.
The GS9024 operates from a single +5V or -5V power supply and consumes only 240mW of power. Packaged in a small 14 pin SOIC, the GS9024 is ideal for router applications where high density component placement is required.
GS9024 Maximum Ratings
PARAMETER
VALUE
Supply Voltage
5.5V
Input Voltage Range (any input)
VCC +0.5 to VEE -0.5V
Operating Temperature Range
0°C T 70°C
Storage Temperature Range
-65°C TS 150°C
Lead Temperature (soldering, 10 sec)
260°C
GS9024 Features
• automatic cable equalization • fully compatible with SMPTE 259M • typically equalizes greater than 350m of high quality cable at 270Mb/s • signal strength indicator • output data muting when input data is lost • output 'eye' monitor (OEM) with large signal amplitude and power down option • low power: 240mW at 5V • 14 pin SOIC package • programmable output data squelch for max cable length limiting • carrier detect with programmable threshold level • serial data output "High Z" select to allow muxing of EQ inputs
GS9024 Typical Application
Front-end cable equalization for digital video systems; Input equalization for serial digital distribution amplifiers, routers, production switchers and other receiving equipment.