GS1508 Gennum Corporation, GS1508 Datasheet
GS1508
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GS1508 Summary of contents
Page 1
... The output amplitude can be varied by adjusting the R resistor value. The serial inputs can be AC coupled. The GS1508 is a low power device that does not require external pull down resistors. The GS1508 is packaged pin SOIC and operates from a single 5V power supply ...
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ABSOLUTE MAXIMUM RATINGS ABSOLUTE MAXIMUM RATINGS ABSOLUTE MAXIMUM RATINGS ABSOLUTE MAXIMUM RATINGS T = 25°C unless otherwise indicated A PARAMETER Supply Voltage Input Voltage Range (any input) Operating Temperature Range Storage Temperature Power Dissipation Lead Temperature (soldering, 10 sec) Input ...
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... PIN CONNECTIONS PIN CONNECTIONS PIN CONNECTIONS PIN CONNECTIONS SDI 1 8 SDI 2 7 GS1508 TOP VIEW SET PIN DESCRIPTIONS PIN DESCRIPTIONS PIN DESCRIPTIONS PIN DESCRIPTIONS NUMBER SYMBOL 1, 2 SDI, SDI SET GND 7, 8 SDO, SDO ...
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... The SMPTE 292M standard requires that the output of a cable driver have a source impedance of 75 loss of at least 15dB between 5Mhz and 1.485GHz. In order for an HD SDI output circuit using the GS1508 to meet this specification, the output circuit shown in the Typical Application Circuit is recommended. ...
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... GS1508 Fig. 5 Static Protection Diodes OUTPUT RETURN LOSS MEASUREMENT To perform a practical return loss measurement necessary to force the GS1508 output high or low condition. The actual measured return loss will be based on the outputs being static operating conditions the outputs of the GS1508 swing between V -0 ...
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... Special attention must be paid to component layout when designing serial digital interfaces for HDTV. Figures 8 through 11 show the artwork for a four layer printed circuit evaluation board for the GS1508. The schematic is shown in Figure 7. An FR-4 dielectric can be used, however, controlled impedance transmission lines are required for PCB traces longer than approximately 1cm ...
Page 7
... EDGEMNT_BNC C13 J6 1µ EDGEMNT_BNC R11 53.6 All resistors in ohms, all capacitors in farads, unless otherwise shown. Fig. 7 Schematic Diagram for the GS1508 Evaluation Board Fig. 8 Top Layer of EB1508 PCB Layout Fig. 9 Power Layer of EB1508 PCB Layout V CC TP1 C1 1µ C2 100n C3 ...
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... P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 SHIPPING ADDRESS: 970 Fraser Drive, Burlington, Ontario, Canada L7L 5P5 Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. 522 - 1.91 5.00 MAX. ...