PRODUCT SPECIFICATION
TMC22071A
Equivalent Circuits and Transition Levels
VDD
n Substrate
VDD
2k�½
PFD IN
CBYP
+2.4 V
+
–
p
VDD
p
n
VDD
p
DDS OUT
150�½
65-22071-14
65-22071-15
Figure 12. Equivalent PFD IN Circuit
Figure 13. Equivalent DDS OUT Circuit
VDD
n Substrate
p
VDD
p
Input
Output
n
n
65-22071-16
65-22071-17
Figure 14. Equivalent Digital Input Circuit
Figure 15. Equivalent Digital Output Circuit
tDOM
CS
tHOM
0.5 V
tDOZ
D0
Hi-Z
2.0 V
0.8 V
65-22071-18
0.5 V
Figure 16. Transition Levels for Three-State Measurements
13