GS9064 데이터 시트보기 (PDF) - Gennum -> Semtech
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GS9064 Datasheet PDF : 10 Pages
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When used as an OUTPUT, the CD/Mute pin will provide an
indication of the output mute status. The CD/Mute voltage
will fall to below 1.2V when the carrier is present and the
data outputs are active.
NOTE: The CD/Mute pin is not functional in BYPASS mode.
4. APPLICATION REFERENCE DESIGN
4.1 PCB LAYOUT
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:
1. The PCB ground plane is removed under the GS9064
input AND output components to minimize parasitic
capacitance.
2. High speed traces are curved to minimize impedance
changes.
4.2 TYPICAL APPLICATION CIRCUIT
VCC
CLI
CD/MUTE
VCC
BNC
10n
GS9064
6.4n
1
16
2 CLI
CD/MUTE
15
1u
3 VCC
VCC 14
4 VEE
VEE 13
75
5 SDI
SDO 12
1u
6 SDI
SDO 11
7 VEE
VEE 10
75
37.4
8 AGC+
MCLADJ
9
+
AGC-
BYPASS
1u
10n
+ 4u7
+
4u7
SDO
SDO
NOTE: All resistors in Ohms, capacitors in Farads,
and inductors in Henrys, unless otherwise noted.
5. REFERENCES
Compliant with SMPTE 259M and SMPTE 344.
MCLADJ
BYPASS
GENNUM CORPORATION
9 of 10
22212 - 2
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