MC145170-1 Datasheet, PDF (5/27 Pages) Motorola, Inc – PLL Frequency Synthesizer with Serial Interface CMOS

tf
90%
CLK 50%
10%
Dout
90%
50%
10%
tw
1/fclk
tPLH
tTLH
tr
tw
tPHL
tTHL
Figure 1.
SWITCHING WAVEFORMS
VDD
ENB
50%
VSS
tPZL
tPLZ
Dout
50%
tPZH
tPHZ
Dout
50%
Figure 2.
VDD
VSS
HIGH
IMPEDANCE
10%
VDD
90% ^VSS
HIGH
IMPEDANCE
VALID
Din
50%
tsu
th
CLK
50%
Figure 3.
VDD
ENB
50%
tw(H)
VDD
VSS
VSS
tsu
th
trec
VDD
VDD
CLK
50%
VSS
FIRST
LAST
VSS
CLK
CLK
Figure 4.
TEST POINT
DEVICE
UNDER
TEST
CL^*
* Includes all probe and fixture capacitance.
Figure 5. Test Circuit
DEVICE
UNDER
TEST
TEST POINT
7.5 kΩ
CL^*
CONNECT TO VDD
WHEN TESTING tPLZ
AND tPZL. CONNECT TO
VSS WHEN TESTING
tPHZ AND tPZH.
* Includes all probe and fixture capacitance.
Figure 6. Test Circuit
MOTOROLA
MC145170–1
5