Câbles coaxiaux - Import export

Serial digital video transmitter for HD video surveillance and HDcctv applications Dual rate operation 270Mbps and 1.485Gbps Backward compatible with HDcctv 1.0 and HDSDI (ST 292) Integrated High Definition Visually Lossless CODEC (HDVLC™) for extended cable reach 500m over 755 (5C) CCTV coax 300m over 753 (3C) CCTV coax 150m over Cat5e/6 UTP cable Configurable 50/75ohm cable driver output, for both coaxial and twisted pair cable transmission Integrated audio embedder with support for up to 4 channels of I2S serial digital audio at 32kHz, 44.1kHz and 48kHz sample rates Downstream ancillary data insertion Supports both 720p and 1080p HD formats 1080p 25/29.97/30fps 720p 25/29.97/30/50/59.94/60fps

The GS12281 is a lowpower, multirate, retiming cable driver supporting rates up to 12G UHDSDI. It is designed to receive 100Ohm differential input signals, automatically recover the embedded clock from the digital video signal and retime the incoming data, and transmit the retimed signal over 75Ohm coaxial cables. The 100Ohm trace input supports up to 17dB of insertion loss.The device supports SMPTE ST 20821 (12G UHDSDI), ST 20811 (6G UHDSDI), ST 424 (3G SDI), ST 2921 (HDSDI) and ST 259 (SDSDI). In addition to standard SMPTE rates, the device also supports retiming of DVBASI at 270Mb/s, MADI at 125Mb/s, and 10GbE. The two cable drivers have highly configurable preemphasis and swing controls to compensate for long trace and connector losses. Additionally, automatic and user selectable output slew rate control is provided for each cable driver output.

The GS3441 is a highspeed BiCMOS integrated circuit designed to equalize and restore signals received over 75ohm coaxial cable. The device is designed to support SMPTE ST 424, SMPTE ST 292 and SMPTE ST 259, and is optimized for performance at 270Mb/s, 1.485Gb/s and 2.97Gb/s. The GS3441 features DC restoration to compensate for the DC content of SMPTE pathological test patterns. The Carrier Detect output pin (CD) indicates whether a valid input signal has been detected. It can be connected directly to the SLEEP pin to enable automatic powerdown upon loss of carrier. A voltage programmable threshold, which can be changed via the SQ_ADJ pin, forces CD high when the input signal amplitude falls below the threshold. This allows the GS3441 to distinguish between lowamplitude SDI signals and noise at the input of the device. The equalizing and DC restore stages are disengaged when the BYPASS pin is HIGH. No equalization occurs in Bypass mode.