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參數資料
| 型號： | TRU050-GFLNB-16M0000000 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PHASE LOCKED LOOP, CDSO16 |
| 封裝： | ROHS COMPLIANT, HERMETIC SEALED, CERAMIC, SMD-16 |
| 文件頁數： | 13/14頁 |
| 文件大?。?/td> | 0K |
| 代理商： | TRU050-GFLNB-16M0000000 |
TRU050, VCXO Based PLL
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Web: www.vectron.com
Page 8 of 14
Rev: 26Aug2008
Figure 7. SPICE Model
*****TRU050 ac Loop model
vi 1 0 ac 1
ri 1 0 1K
*****Phase Detector
e1 2 0 1 0 1
(for closed loop response use: e1 2 0 1 12 1)
r2 2 3 30K
c1 2 0 60p
*****Phase Detector Gain=0.53 x Data Density (Data Density=1 for clocks) for 5 volt
operation and = 0.35 * Data Density for 3.3 volt operation
e2 4 0 3 0 .35
*****Loop filter
r1 4 5 60K
c2 5 0 10p
rf 5 6 90K
cf 6 7 1.0u
e3 7 0 5 0 –10000
***** VCXO, Input Bandwidth=50kHz
r5 7 8 160K
c4 8 0 20p
*****VCXO Gain x 2pi (Example, use OUT1 x 100ppm x 2 x pi)
e4 9 0 8 0 12214
*****1/S model
r6 9 10 1000
c5 10 11 0.001
e5 11 0 10 0 –1e6
****Divide by N
e6 12 0 11 0 1
r8 12 0 1K
The bold numbers are user selectable R/C, data density, VCXO frequency and divide-
by values, and are from figure 11.
Vi
Ri
E1 R2 C1
E2 R1
C2
Rf
Cf
E3
R5 C4
E4
R6 C5
E5
E6
R7
12
3
4
5
6
7
8
9
10
11
12
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相關代理商/技術參數 |
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