GS1524-CTDE3(2011) 데이터 시트보기 (PDF) - Gennum -> Semtech
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GS1524-CTDE3 Datasheet PDF : 16 Pages
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6. Application Information
6.1 PCB Layout
Special attention must be paid to component layout when designing serial digital
interfaces for HDTV. A 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:
PCB trace width for HD rate signals is closely matched to SMT component width to
minimize reflections due to change in trace impedance.
The PCB ground plane is removed under the GS1524 input components to minimize
parasitic capacitance.
The PCB ground plane is removed under the GS1524 output components to minimize
parasitic capacitance.
High-speed traces are curved to minimize impedance changes.
6.2 Typical Application Circuit
CLI
CD/MUTE
VCC
VCC
BNC
6.4n
75
10n
1u
1u
75
37.4
+
1u
GS1524
1
2 CLI
3 VCC
4 VEE
5 SDI
6 SDI
7 VEE
8 AGC+
AGC-
16
CD/MUTE
15
VCC
14
VEE 13
SDO
12
SDO
11
VEE 10
MCLADJ
9
BYPASS
10n
+ 4u7
+
4u7
SDO
SDO
NOTE: All resistors in Ohms, capacitors in Farads,
and inductors in Henrys, unless otherwise noted.
Figure 6-1: GS1524 Typical Application Circuit
MCLADJ
BYPASS
GS1524 Multi-Rate SDI Adaptive Cable Equalizer
Data Sheet
14976 - 11
August 2011
14 of 16
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