CLOCK
XXX
3FFH
000H
TRS-ID
XXX
XXX
XXX
DATA IN
XXX
3FFH
000H
DATA OUT
TRS-ID
XXX
HSYNC
FIELD
XXX
XXX
Fig. 6 Composite Timing Signals
VBLANK
Line 525 Sample 765
Line 263 Sample 310
(525/60) Odd Fields
(525/60) Even Fields
Line 9 Sample 764
Line 272 Sample 764
Line 623 Sample 379
Line 310 Sample 945
(625/50) Odd Fields
(625/50) Even Fields
Line 5 Sample 944
Line 317 Sample 944
Note:
All sample numbers are with respect to output data.
Fig. 7 Composite VBLANK Timing
USER SET
F, V, H
STATUS
FLAGS
ERROR FLAGS
TIMING
CO-AXIAL
CABLE
10 BIT
PARALLEL
INPUT
RECEIVER/
DESERIALIZER
CABLE
DRIVER
10 BIT
PARALLEL
DATA
EDH
SERIALIZER
EDH
PCLK
INPUT
PCLK
Fig. 8 GS9001 System Placement
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.
Conformance to SMPTE standards for EDH and digital video,
ensures compatibility with any piece of source, destination or
routing equipment.
Complete,System-WideImplementationofEDH
The nature of the EDH error flags and the flexibility of use with
an I2C interface or in stand alone operation, make the GS9001
suitable for most system applications.
Figure 9 shows a typical system implementation using EDH ,
where both equipment fault errors and transmission errors
occur.
521 - 38 - 04
12 of 14
GENNUM [ GENNUM CORPORATION ]
