MC145190F 데이터 시트보기 (PDF) - Motorola => Freescale
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MC145190F Datasheet PDF : 24 Pages
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100 ns MINIMUM
ENB
CLK
1
2
3
4
5
Din
1
2
3
4
5
1
2
3
4
5
NOTE: It may not be convenient to control the ENB or CLK pins during power up per the Pin Descriptions. If this is the case, the part may
be initialized through the serial port as shown in the figure above. The sequence is similar to accessing the registers except that the
CLK must remain high at least 100 ns after ENB is brought high. Note that 3 groups of 5 bits are needed.
Figure 13. Initializing the PLL through the Serial Port
MC145190
t t Nominal PDout Spurious Current vs fR Frequency
(1 V PDout VPD – 1 V)
fR
(kHz)
Current
(RMS nA)
10
1.6
20
5.3
50
22
100
95
200
320
MC145191
t t Nominal PDout Spurious Current vs fR Frequency
(1 V PDout VPD – 1 V)
fR
(kHz)
Current
(RMS nA)
10
3.6
20
4.6
50
17
100
75
200
244
NOTE: For information on spurious current measurement see AN1253/D, “An Improved PLL Design Method Without ωn and ζ”.
Table 2. PDout Current, C1 = Low with OUTPUT A NOT
Selected as “Port”; Also, Default Mode When
OUTPUT A Selected as “Port”
C3
C2
PDout Current
0
0
70%
0
1
80%
1
0
90%
1
1
100%
Table 3. PDout Current, C1 = High with OUTPUT A NOT
Selected as “Port”
C3
C2
PDout Current
0
0
25%
0
1
50%
1
0
75%
1
1
100%
MC145190•MC145191
12
MOTOROLA
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