The GS9035A, produced by Gennum (now Semtech), is a high-definition serial digital interface (HD-SDI) reclocker. This device is designed to recover and re-transmit clean, low-jitter SDI and HD-SDI signals, ensuring signal integrity in professional video applications. The reclocker is essential for extending cable reach and maintaining high-quality video transmission in broadcast environments.

Applications

• Broadcast video equipment
• Video production switchers and routers
• Digital video recorders (DVRs)
• High-definition television (HDTV) systems
• Surveillance systems

Features

• Reclocks SMPTE 292M (1.485 Gb/s HD-SDI) and SMPTE 259M (270 Mb/s SDI) signals
• Automatic input cable equalization
• Low output jitter
• Integrated voltage-controlled oscillator (VCO)
• Single 3.3V power supply operation
• Small form factor package
• Input return loss compensation

Benefits

• Extends cable reach for SDI and HD-SDI signals
• Improves signal quality by reducing jitter
• Ensures compliance with SMPTE standards
• Simplifies system design and reduces component count
• Cost-effective solution for maintaining signal integrity

Additional Details

The GS9035A incorporates an integrated VCO and a clock and data recovery (CDR) circuit to re-time the incoming SDI or HD-SDI signal. The device automatically equalizes the input signal to compensate for cable losses, optimizing signal quality. Its low output jitter performance ensures reliable signal transmission over extended distances. This reclocker is commonly used in professional broadcast and video production equipment to maintain signal integrity and ensure compliance with industry standards. It supports data rates up to 1.485 Gbps. The input return loss compensation circuitry ensures that signal reflections are minimized, further enhancing signal quality.