GS1522 Gennum Corporation, GS1522 Datasheet - Page 18

• Manufacturer Part Number: GS1522
• Description: Hd-linx (tm) THDTV Serial Digital Serializer
• Manufacturer: Gennum Corporation

TYPICAL APPLICATION CIRCUIT (continued)
TYPICAL APPLICATION CIRCUIT (continued)
TYPICAL APPLICATION CIRCUIT (continued)
TYPICAL APPLICATION CIRCUIT (continued)
The figures above show the recommended application
circuit for the GS1522. The external VCO is the GO1515
and is specifically designed to be used with the GS1522.
Figures 28 through 31 show an example PC board layout of
GENNUM CORPORATION
GS1522 SYNC DETECT DISABLE
(10BIT/8BIT)
GO1515 VCO
SYNC_DETECT_DISABLE
Fig. 28 Top Layer of EB1522 PCB Layout
All resistors in ohms,
all capacitors in farads,
unless otherwise shown.
VCO
LFA
4
V
CC
GND
100n
C37
C38
+
10µ
GO1515
U2
V
CC
GND
8
GS1522 SCRAMBLER BYPASS
R
50
CP1
C
BYPASS
CP3
1µ
+
V
CC
18
the GS1522 IC and the GO1515 VCO. This application
board layout does not reflect every detail of the typical
application circuit. It is provided as a general guide to the
location of the critical parts.
POWER CONNECT
GS1522 LOCK DETECT
GS1522 RESET CIRCUIT
RESET
LOCK
Fig. 29 Ground Layer of EB1522 PCB Layout
V
CC
R20
R25
22k
4k7
+
C41
10µ
100n
C44
Q1
1
3
S1
2
4
LED1
V
CC
R22
150
V
CC
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