參數(shù)資料
型號(hào): GS1574
廠商: Gennum Corporation
英文描述: GS1574 HD-LINX -TM II Adaptive Cable Equalizer
中文描述: GS1574的HD - LINX進(jìn)程,商標(biāo)II自適應(yīng)電纜均衡器
文件頁(yè)數(shù): 13/17頁(yè)
文件大?。?/td> 222K
代理商: GS1574
GS1574 Preliminary Data Sheet
Proprietary and Confidential
28854 - 2
December 2004
13 of 17
5. Application Information
5.1 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:
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 GS1574 input components to
minimize parasitic capacitance.
The PCB ground plane is removed under the GS1574 output components to
minimize parasitic capacitance.
High speed traces are curved to minimize impedance changes.
5.2 Typical Application Circuit A
Figure 5-1: GS1574 Typical Application Circuit
GS1574
SDI
N
SDI
VEE_D
M
V
A
B
M
VEE_A
NOTE: All resistors in Ohms, capacitors in Farads,
and inductors in Henrys, unless otherwise noted.
VEE_A
A
V
SDO
SDO
VEE_D
10n
1
10n
SDO
4u7
4u7
+
+
SDO
MUTE
VCC
BYPASS
MCLADJ
+1u
6.4n
75
SDI
1u
75
1u
37.5
VCC_A
4
5
6
2
3
8
7
16
12
13
11
14
15
9
10
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