Datasheet

AD9549
Rev. D | Page 16 of 76
INPUT/OUTPUT TERMINATION RECOMMENDATIONS
DOWNSTREAM
DEVICE
(HIGH-Z)
AD9549
1.8V
HSTL
OUTPUT
100Ω
06744-018
0.01µF
0.01µF
Figure 18. AC-Coupled HSTL Output Driver
DOWNSTREAM
DEVICE
(HIGH-Z)
AD9549
1.8V
HSTL
OUTPUT
50Ω
50Ω
06744-019
AVDD/2
Figure 19. DC-Coupled HSTL Output Driver
AD9549
SELF-BIASING
REF INPUT
0.01µF
0.01µF
100Ω
(OPTIONAL)
06744-020
Figure 20. Reference Input
AD9549
SELF-BIASING
FDBK INPUT
0.1µF
0.1µF
100Ω
(OPTIONAL)
06744-021
Figure 21. FDBK_IN Input