73M1903-IMR データシートの表示（PDF） - Teridian Semiconductor Corporation
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73M1903-IMR Datasheet PDF : 46 Pages
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DS_1903_032
73M1903 Data Sheet
Table 10: Clock Generation Register Settings for Fxtal = 24.000 MHz
Reg Address
Fs (kHz)
8h
Ichp
9h Ah Bh Ch Dh* (μA)
7.2
DA EF 30 15 1A C4 10
8.0
02 2C 31 13 10 C4 10
2.4*8/7*3
=8.22857142858 08 72 41 1C 3E C5 12
8.4
DA EF 41 19 10 C4 12
9.0
08 66 11 0A 1E C4 6
9.6
DA EF 42 1C 1E C4 12
2.4*10/7*3
=10.2857142857 DA EF 43 1E 7E C6 12
2.4*8/7*4
=10.9714285714 3E A9 33 14 76 C6 10
11.2
DA EF 53 21 1A C4 14
12
08 66 14 0E 14 C4 6
12.8
DA EF 45 26 14 C4 12
2.4*10/7*4
=13.7142857143 10 8C 46 20 80 C7 12
14.4
54 CA 46 1C 3E C5 12
Kvco
[2:0]
0
1
1
1
1
2
3
3
3
4
5
6
6
Table 11: Clock Generation Register Settings for Fxtal = 25.35 MHz
Reg Address
FS (KHz)
7.2
Ichp Kvco
8h 9h Ah Bh Ch Dh* (μA) [2:0]
92 F4 50 1A 06 C2 14
0
Xtal Oscillator
Fxtal
2
Loop Filter Control
VCO Locked
NCO
Prescaler
Up
Fref
PFD Kd
Dn
Ichp Control
Charge R1
Pump C1
C2 VCO
Kvco
2
Kvco Control
2
NCO
FrcVco
0
1
System
Clock
Fvco
Figure 5: Clock Generation
Rev. 2.0
17
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