Final Specification
P2781/82/84
Oct, 2002 PulseCore – A Division of Alliance Semiconductor
Revision F 3160 De La Cruz Blvd., Suite 200 • Santa Clara • CA • 95054
Tel (408) 748-6988 • Fax (408) 748-0009
3 of 3 http://www.pulsecore.com
Table 2 - Loop Filter Selection Table VDD 3.3V
NOTE: The BW % value is representative of typical conditions.
BW=+/-0.50% BW=+/-0.75% BW=+/-1.00% BW=+/-1.25%
INPUT
(MHz) FS1
FS0
C1 (pF)
C2 (pF)
R1
(ohms)
C1 (pF) C2 (pF)
R1
(ohms) C1 (pF) C2 (pF)
R1
(ohms)
C1 (pF) C2 (pF)
R1
(ohms)
3 0 0 270 330,000
220 270 330,000
300 270 100,000
390 560 100,000
510
4 0 0 270 100,000
270 270 100,000
390 270 100,000
560 560 100,000
680
5 0 0 270 100,000
390 270 100,000
560 270 100,000
750 560 100,000
910
6 0 0 270 100,000
510 270 100,000
750 270 10,000
1,000 680 6,800 1,200
7 0 0 270 100,000
620 270 100,000
1,000 270 5,600 1,200 330 3,300 1,200
8 0 0 270 100,000
820 270 100,000
1,200 270 12,000
2,200 680 6,800 2,200
9 0 0 270 100,000
1,000 270 100,000
1,500 270 5,600 2,200 270 2,700 2,200
10 0 1 270 100,000
330 270 100,000
510 270 100,000
750 560 100,000
910
11 0 1 270 100,000
390 270 100,000
560 270 100,000
866(1%)
560 100,000
1,100
12 0 1 270 100,000
510 270 100,000
750 270 10,000
1,000 680 6,800 1,200
13 0 1 270 100,000
560 270 100,000
820 270 12,000
1,200 470 4,700 1,200
14 0 1 270 100,000
620 270 100,000
1,000 270 5,600 1,200 330 3,300 1,200
15 0 1 270 100,000
750 270 100,000
1,100 270 3,900 1,200 330 3,300 1,500
16 0 1 270 100,000
820 270 100,000
1,200 270 12,000
2,200 680 6,800 2,200
17 0 1 270 100,000
910 270 100,000
1,300 270 10,000
2,200 390 3,900 2,200
18 0 1 270 100,000
1,000 270 100,000
1,500 270 5,600 2,200 270 2,700 2,200
19 0 1 270 100,000
1,200 270 100,000
1,600 270 3,300 2,200 270 2,700 2,700
20 1 0 270 100,000
330 270 100,000
560 270 100,000
750 560 100,000
910
21-22 1 0 270 100,000
390 270 100,000
620 270 100,000
866(1%)
560 100,000
1,100
23-24 1 0 270 100,000
510 270 100,000
750 270 10,000
1,000 680 6,800 1,200
25-26 1 0 270 100,000
560 270 100,000
820 270 12,000
1,200 470 4,700 1,200
27-28 1 0 270 100,000
620 270 100,000
1,000 270 6,800 1,200 330 3,300 1,200
29-30 1 0 270 100,000
750 270 100,000
1,100 270 3,900 1,200 330 3,300 1,500
31-32 1 0 270 100,000
820 270 100,000
1,200 270 12,000
2,200 680 6,800 2,200
33-34 1 0 270 100,000
910 270 100,000
1,300 270 10,000
2,200 390 3,900 2,200
35-36 1 0 270 100,000
1,000 270 100,000
1,500 270 5,600 2,200 270 2,700 2,200
37-38 1 0 270 100,000
1,200 270 100,000
1,600 270 3,300 2,200 270 2,700 2,700
39-42 1 1 270 100,000
330 270 100,000
560 270 100,000
750 560 100,000
910
43-46 1 1 270 100,000
390 270 100,000
620 270 100,000
866(1%)
560 100,000
1,100
47-50 1 1 270 100,000
510 270 100,000
750 270 10,000
1,000 680 6,800 1,200
51-54 1 1 270 100,000
560 270 100,000
820 270 12,000
1,200 470 4,700 1,200
55-58 1 1 270 100,000
620 270 100,000
1,000 270 6,800 1,200 330 3,300 1,200
59-62 1 1 270 100,000
750 270 100,000
1,100 270 3,900 1,200 330 3,300 1,500
63-66 1 1 270 100,000
820 270 100,000
1,200 270 12,000
2,200 680 6,800 2,200
67-70 1 1 270 100,000
910 270 100,000
1,300 270 8,200 2,200 390 3,900 2,200
71-74 1 1 270 100,000
1,000 270 100,000
1,600 270 5,600 2,200 270 2,700 2,200
75-78 1 1 270 100,000
1,200 270 100,000
1,800 270 3,300 2,200 270 2,700 2,700
*Please contact factory for loop filter values not listed in the above table
(info@pulsecore.com; or Ext. 17 or 25)
C2 C1
R1
PIN 4 LF