Multi-Rate Serializer with Cable Driver, Audio Multiplexer and ClockCleaner™Provides robust parallel to serial conversion, generating a SMPTE 292M/259M-C compliant serial digital output signal

Overview:

The GS1582 is an HD/SD-SDI multi-standard serializer with an integrated cable driver. The device provides robust parallel to serial conversion, generating a SMPTE 292M/259M-C compliant serial digital output signal. The integrated cable driver features an output disable (high impedance) mode and an adjustable signal swing. Video data input is accepted in 20 bit parallel format or 10 bit parallel multiplexed format. An associated parallel clock input must be provided at the appropriate operating frequency - 74.25 / 74.1758 / 13.5 MHz (20 bit mode) or 148.5 / 148.352 / 27 MHz (10 bit mode).

The GS1582 features an internal PLL, which can be configured for loop bandwidth to below 100kHz. When used in conjunction with the GO1555 Voltage Controlled Oscillator, the GS1582 can tolerate well in excess of 300ps jitter on the input PCLK and still provide output jitter within SMPTE specifications.
In addition to serializing the input, the GS1582 performs NRZ-to-NRZI encoding and scrambling as per SMPTE 292M/259M-C when operating in SMPTE mode. When operating in DVB-ASI mode, the device will insert K28.5 sync characters and 8b/10b encode the data prior to serialization. The device also provides a range of other data processing functions. All processing features are optional and may be enabled/disabled via external control pin(s) and/or host interface programming.

The GS1582 can embed up to 8 channels of audio into the video data stream in accordance with SMPTE 299M and SMPTE 272M. The audio input signal formats supported by the device include AES/EBU and I2S serial digital formats. Audio formats supported include, 16, 20 and 24 bit with a 48 KHz sample rate. Additional audio processing features include individual channel enable, channel swap, group swap, ECC generation and audio channel status insertion.
Typical power consumption, including the GO1555 VCO, is 550mW. The standby feature allows the power to be reduced to 100mW.

The GS1582 is Pb-free and the encapsulation compound does not contain halogenated flame retardant. This component and all homogeneous subcomponents are RoHS compliant.