VSC6511 Datasheet, PDF (4/22 Pages) Vitesse Semiconductor Corporation – SMPTE-292M Serializer, Deserializer, and Deserializer/Reclocker at 1.485Gb/s

VITESSE
SEMICONDUCTOR CORPORATION
SMPTE-292M Serializer, Deserializer, and
Deserializer/Reclocker at 1.485Gb/s
Advance Product Information
VSC6511
Table 1: Frame Aligner Output Timing
D10-19
D0-9
LINE
FRAME
HANC
DATA
DATA
0
0
0
---
---
0
0
0
DATA
DATA
0
0
0
3FF
3FF
0
0
0
000
000
0
0
0
000
000
0
0
0
XYZ
XYZ
0
0
0
LN0
LN0
0
0
0
LN1
LN1
1
1*
0
CRC0
CRC0
0
0
0
CRC1
CRC1
0
0
0
DATA
DATA
0
0
1
---
---
0
0
1
DATA
DATA
0
0
1
3FF
3FF
0
0
0
000
000
0
0
0
000
000
0
0
0
XYZ
XYZ
0
0
0
DATA
DATA
0
0
0
DATA
DATA
0
0
0
---
---
0
0
0
* FRAME is HIGH only if LN0/LN1 indicates the first line of a frame.
** CRCERR is HIGH only during CRC1 if the CRC is incorrect.
CRCERR
0
0
0
0
0
0
0
0
0
0
0 or 1
0
0
0
0
0
0
0
0
0
0
D[19:0] Databus
As mentioned previously, in Serializer mode D[19:0] is configured as a input. In Deserializer mode,
D[19:0] is configured as an output.
Application Information
The VSC6511 cable driver output is intended to fully comply with the SMPTE-292M cable driver specifi-
cations. This includes an 800mV swing and a return loss of more than 15dB. The circuit shown below shows
how to connect the output of the VSC6511 to the 75 ohm cable and downstream device. The output of the
VSC6511 is actually 1200mV. The output termination circuit shown below attenuates the output signal to
800mV and ensures a return loss better than -15dB. The ISET resistor is 1.78K
Page 4
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G52311-0, Rev 2.0
4/10/00