GS1574A Datasheet | Gennum Corporation

.. GS1574A HD-LINX® II Adaptive Cable Equalizer GS1574A Data Sheet Features - - - - - - - - - - - - - SMPTE 292M and SMPTE 259M pliant Automatic cable equalization Multi-standard operation from 143Mb/s to 1.485Gb/s Supports DVB-ASI at 270Mb/s Small footprint (4mm x 4mm) Pb-free and Ro HS pliant Manual bypass (useful for low data rates with slow rise/fall times) Performance optimized for 270Mb/s and 1.485Gb/s Typical maximum equalized length of Belden 1694A cable: 140m at 1.485Gb/s, 350m at 270Mb/s 50Ω differential output (with internal 50Ω pull-ups) Manual output mute or programmable mute based on max cable length adjust Single 3.3V power supply operation Operating temperature range: 0°C to +70°C Description The GS1574A is a second-generation high-speed Bi CMOS integrated circuit designed to equalize and restore signals received over 75Ω co-axial cable. The GS1574A is designed to support SMPTE 292M and SMPTE 259M, and is optimized for performance at 270Mb/s and 1.485Gb/s. The GS1574A Features DC restoration to pensate for the DC content of SMPTE pathological test patterns. A voltage programmable mute threshold (MCLADJ) is included to allow muting of the GS1574A output when an approximate selected cable length is reached for SMPTE 259M signals. This feature allows the GS1574A to distinguish between low amplitude SD-SDI signals and noise at the input of the device. The serial digital outputs of the GS1574A may be forced to a mute state by applying a voltage to the MUTE pin. Power consumption is typically 215m W using a 3.3V power supply. The GS1574A is lead-free, and the encapsulation pound does not contain halogenated flame retardant. This ponent and all homogeneous subponents are Ro HS pliant. Applications - SMPTE 292M and SMPTE 259M Coaxial Cable Serial Digital Interfaces. MCLADJ CABLE LENGTH ADJUSTOR CARRIER DETECT MUTE CD MUTE BYPASS SDI SDI EQUALIZER DC RESTORE OUTPUT SDO SDO GS1574A Functional Block...