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GS1528BCKAE3 bảng dữ liệu(PDF) 11 Page - Gennum Corporation |
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GS1528BCKAE3 bảng dữ liệu(HTML) 11 Page - Gennum Corporation |
11 / 14 page GS1528B HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 39623 - 4 August 2010 11 of 14 6. Application Information 6.1 PCB Layout Special attention must be paid to component layout when designing serial digital interfaces for HDTV. An FR-4 dielectric can be used, however, controlled impedance transmission lines are required for PCB traces longer than approximately 1cm. Note the following PCB artwork features used to optimize performance: • The PCB trace width for HD rate signals is closely matched to SMT component width to minimize reflections due to changes in trace impedance. • The PCB groundplane is removed under the GS1528B output components to minimize parasitic capacitance. • The PCB ground plane is removed under the GS1528B RSET pin and resistor to minimize parasitic capacitance. • Input and output BNC connectors are surface mounted in-line to eliminate a transmission line stub caused by a BNC mounting via high speed traces which are curved to minimize impedance variations due to change of PCB trace width. 6.2 Typical Application Circuit Figure 6-1: GS1528B Typical Application Circuit SD/HD GS1528B 1 2 3 4 8 7 6 5 DDI DDI VEE SDO SDO SD/HD 10n 75 5.6n 4u7 BNC VCC 75 5.6n 10n 75 4u7 49.9 750 10n 49.9 4u7 75 BNC VCC 4u7 VCC * TYPICAL VALUE VARIES WITH LAYOUT DIFFERENTIAL DATA INPUT * * NOTE: All resistors in Ohms, capacitors in Farads, and inductors in Henrys, unless otherwise noted. |
Số phần tương tự - GS1528BCKAE3 |
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Mô tả tương tự - GS1528BCKAE3 |
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