JULY 13, 2016
9
VERSACLOCK
®
3S - 5P35021 Evaluation Board
Table 5: Termination Options for Differential Output 1 (DIFF_CO/TO)
Table 6: Termination Options for Differential Output 2 (DIFF_C1/T1)
As noted, 4-resistor network is not installed in
Table 5
and
Table 6
because oscilloscope with internal 50
termination is utilized
for signal termination and measurement. If an AC-coupled, stand-alone LVPECL output is needed (without oscilloscope
connections), the 4-resistor network needs to be installed accordingly.
Table 7: Termination for Single-ended Output 1 (SE_1)
Table 8: Termination for Differential and Single-ended Input)
Note
: ** The differential output is applicable to LPHCSL which is the default configuration of the board.
* The single-ended output is applicable to LVCMOS which is the default configuration of the board.
Contact IDT if user wants to change termination configuration to support other output signal types.
Orderable Part Numbers
The following evaluation board part numbers are available for order.
Table 9: Orderable Part Numbers
Signal Type
Series Resistors:
R79, R80
Series Capacitors:
C19, C20
Resistor Network:
R25, R26, R27, R29, R32
**LPHCSL
33
2pF
Not installed
Signal Type
Series Resistors:
R81, R82
Series Capacitors:
C21, C22
Resistor Network:
R38, R42, R43, R44, R45
**LPHCSL
33
2pF
Not installed
Signal Type
Series Resistors:
R1
Series Capacitors:
C16
*LVCMOS
33
Not installed
Signal Type
Series Resistor:
R8
Series Resistor:
R5
Differential Clock Input
Not installed
Not installed
Single-ended Clock Input
Not installed
Not installed
Part Number
Description
EVK5P35021
Evaluation board with all differential outputs terminated as LPHCSL, Single-ended
terminated as LVCMOS