12 of 14
521 - 38 - 04
NOT RECOMMENDED
FOR NEW DESIGNS
Line 525 Sample 765 (525/60) Odd Fields Line 9 Sample 764
Line 263 Sample 310 (525/60) Even Fields Line 272 Sample 764
Line 623 Sample 379 (625/50) Odd Fields Line 5 Sample 944
Line 310 Sample 945 (625/50) Even Fields Line 317 Sample 944
Note: All sample numbers are with respect to output data.
APPLICATIONS
The GS9001 can be used on either the transmit or receive side
of the serial digital interface. As shown in Figure 8, it is used as
the last stage prior to serialization and immediately after
deserialization.
The nature of the EDH error flags and the flexibility of use with
an I
2
C interface or in stand alone operation, make the GS9001
suitable for most system applications.
Conformance to SMPTE standards for EDH and digital video,
ensures compatibility with any piece of source, destination or
routing equipment.
Complete, System-Wide Implementation of EDH
Figure 9 shows a typical system implementation using EDH ,
where both equipment fault errors and transmission errors
occur.
Fig. 8 GS9001 System Placement
VBLANK
PCLK
INPUT
CO-AXIAL
CABLE
EDH
SERIALIZER
USER SET
ERROR FLAGS
F, V, H
TIMING
STATUS
FLAGS
10 BIT
PARALLEL
INPUT
10 BIT
PARALLEL
DATA
RECEIVER/
DESERIALIZER
PCLK
EDH
CABLE
DRIVER
Fig. 7 Composite VBLANK Timing
CLOCK
HSYNC
FIELD
DATA IN
DATA OUT
XXX
000
H
3FF
H
TRS-ID
XXX
XXX
XXX
XXX
XXX XXX
000
H
3FF
H
TRS-ID
XXX
Fig. 6 Composite Timing Signals
