THCV217_16 Datasheet, PDF (31/35 Pages) THine Electronics, Inc. – V-by-One HS High-speed Video Data Transmitter and Receiver

Note
1)Power On Sequence
Don’t input clock nor data before THCV217 is on in order to keep absolute maximum ratings.
2)Cable Connection and Disconnection
Don’t connect and disconnect the CML cable, when the power is supplied to the system.
3)GND Connection
Connect the each GND of the PCB which Transmitter, Receiver and THCV217-218 on it. It is better for EMI
reduction to place GND cable as close to CML cable as possible.
4)Multiple device connection
HTPDN and LOCKN signals are supposed to be connected proper for their purpose like the following figure.
HTPDN should be from just one Rx to multiple Tx because its purpose is only ignition of all Tx.
LOCKN should be connected so as to indicate that all Rx CDR become ready to receive normal operation data.
LOCKN of Tx side can be simply split to multiple Tx.
THCV218 DGLOCK connection is appropriate for multiple Rx use.
Also possible time difference of internal processing time (p.19 THCV217 tTCD and p.20 THCV218 tRDC) on
multiple data stream must be accommodated and compensated by the following destination device connected to
multiple THCV218, which may have internal FIFO.
THCV217
clkin.1
HTPDN
LOCKN
Source
Device
Ex. synchronized
THCV217
HTPDN
clkin.2 LOCKN
Internal processing time tTCD
THCV218
clkout.1
HTPDN
FIFO
LOCKN
DGLOCK
Time diff. comes up
THCV218
Destination
Device
HTPDN
LOCKN clkout.2
FIFO
DGLOCK
Internal processing time tRDC
THCV217-THCV218_Rev.2.11_E
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