mc145170-2 Freescale Semiconductor, Inc, mc145170-2 Datasheet - Page 8

• Manufacturer Part Number: mc145170-2
• Description: Pll Frequency Synthesizer With Serial Interface
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
8
Sine Wave
Generator
Figure 11. Test Circuit, OSC Circuit with Crystal
Output
Figure 9. Test Circuit, OSC Circuitry
C1
C2
Figure 13. Switching Waveform
50%
Externally Driven [Note]
50 Ω
Use the circuit of
when the MC145170-2 has power applied with no external signal applied
at V
damage the IC.)
90%
10%
V
in
0.01 µF
in
t
5.0 MΩ
THL
OSC
OSC
. (Self-oscillation is not harmful to the MC145170-2 and does not
MC145170-2
in
out
V
SS
t
w
REF
OSC
OSC
MC145170-2
V
out
DD
V
in
out
SS
Figure 10
MC145170-2 Technical Data, Rev. 5
V
Test Point
V+
DD
f
R
V+
to eliminate self-oscillation of the OSC
t
Test Point
TLH
NOTE
Sine Wave
Generator
Figure 10. Circuit to Eliminate Self-Oscillation,
REFout
OSC Circuitry Externally Driven [Note]
Figure 14. Test Load Circuit
*Includes all probe and fixture capacitance.
50 Ω
Figure 12. Test Circuit
Device
Under
Test
50%
V
0.01 µF
in
No Connect
Output
1/f REF
V+
1.0 MΩ
1.0 MΩ
Test Point
out
in
Freescale Semiconductor
OSC
OSC
CL*
pin
MC145170-2
V
SS
in
out
V
DD
f
R
V+
Test Point