參數(shù)資料
型號(hào): SY89538L
廠商: Micrel Semiconductor,Inc.
英文描述: 3.3V PRECISION LVPECL AND LVDS PROGRAMMABLE MULTIPLE OUTPUT BANK CLOCK SYNTHESIZER AND FANOUT BUFFER WITH ZERO DELAY
中文描述: 3.3精密LVPECL和LVDS可編程多個(gè)OUTPUT銀行時(shí)鐘合成器與扇出緩沖器與零延遲
文件頁(yè)數(shù): 15/23頁(yè)
文件大?。?/td> 628K
代理商: SY89538L
Micrel, Inc.
SY89538L
October 2005
M9999-101105-B
hbwhelp@micrel.com
or (408) 955-1690
15
Ref-Divider = 1
Ref-Divider = 2
Ref-Divider = 4
Ref-Divider = 8
f
VCO
(MHz)
f
OUT
(MHz)
f
REF
(MHz)
f
REF
(MHz)
f
REF
(MHz)
f
REF
(MHz)
Min.
Max.
Post-
Divider
Pre-
Divider
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
2.35
3.02
1
2
588.0
755.0
588.0
755.0
294.0
377.5
147.0
188.8
73.5
94.4
2.35
3.02
1
3
392.0
503.0
392.0
503.0
196.0
251.5
98.0
125.8
49.0
62.9
2.35
3.02
1
4
294.0
378.0
294.0
378.0
147.0
189.0
73.5
94.5
36.8
47.3
2.35
3.02
1
5
235.0
302.0
235.0
302.0
117.5
151.0
58.8
75.5
29.4
37.8
2.35
3.02
2
2
294.0
378.0
294.0
378.0
147.0
189.0
73.5
94.5
36.8
47.3
2.35
3.02
2
3
196.0
252.0
196.0
252.0
98.0
126.0
49.0
63.0
24.5
31.5
2.35
3.02
2
4
147.0
189.0
147.0
189.0
73.5
94.5
36.8
47.3
18.4
23.6
2.35
3.02
2
5
118.0
151.0
118.0
151.0
59.0
75.5
29.5
37.8
14.8
18.9
2.35
3.02
8
2
73.4
94.4
73.4
94.4
36.7
47.2
18.4
23.6
Not
Valid
11.8
2.35
3.02
8
3
49.0
62.9
49.0
62.9
24.5
31.5
12.3
15.7
Not
Valid
Not
Valid
2.35
3.02
8
4
36.7
47.2
36.7
47.2
18.4
23.6
Not
Valid
11.8
Not
Valid
Not
Valid
2.35
3.02
8
5
29.4
37.8
29.4
37.8
14.7
18.9
Not
Valid
Not
Valid
Not
Valid
Not
Valid
Table 9. Zero Delay Divider Cases
Considerations when in zero delay mode:
The input and output frequency range is
29.375MHz to 756MHz
The phase detector frequency range is
9.325MHz to 94.5MHz
There are cases in which certain divider
combinations at certain frequencies are
not valid, see Table 9 for more details
Systematic phase offset is caused by added
and parasitic capacitance
Phase offset is introduced by increased trace
length
Phase offset second order effects can be
introduced with high
ε
R
die-electric constants
since the velocity of electromagnetic waves
slows down as the die-electric constant
increases
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