932SQ426_16 Datasheet, PDF (8/25 Pages) Integrated Device Technology – DERIVATIVE SUPPORTING SRNS PCIE CLOCKING

932SQ426
CK420BQ DERIVATIVE SUPPORTING SRNS PCIE CLOCKING
Test Loads and Recommended Terminations
932SQ426 Differential Test Loads
HSCL Output
Buffer
Rs
Differential Zo
Rs
Rp Rp
2pF
2pF
Differential Output Termination Table
DIF Zo (Ω) Iref (Ω) Rs (Ω) Rp (Ω)
100
475
33
50
85
412
27
43.2
Rs
Zo
5pF
Rs
Zo
5pF
Single-ended Output Termination Table
Rs
Zo
Rs Value
5pF
O utp ut
(for each load)
Loads Zo = 50^Ω Zo =60^Ω
PCI/ USB
1
36
43
Rs
Zo
PCI/ USB
2
5pF
REF
1
22
33
39
47
REF
2
27
36
REF
3
10
20
Rs
Zo
5pF
Rs
Zo
5pF
IDT® CK420BQ DERIVATIVE SUPPORTING SRNS PCIE CLOCKING
8
932SQ426
REV C 022916