参数资料
型号: LUCW3000CCN
元件分类: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 2200 MHz, PDSO14
封装: TSSOP-14
文件页数: 10/28页
文件大小: 326K
代理商: LUCW3000CCN
Advance Data Sheet
W3000 PLL Dual-Band Frequency Synthesizer
December 1999
Lucent Technologies Inc.
18
MAIN_IN Input Parallel Equivalent Circuit
The input impedance is high, and can best be
represented by the model shown in Figure 9.
R
C
MAIN_IN
Figure 9. MAIN_IN Parallel Equivalent Circuit
Table 24. MAIN_IN Input Parallel Equivalent
Circuit Values
Frequency (MHz)
C (pF)
R (
)
600
0.88
3680
800
0.87
2650
1000
0.85
2370
1200
0.85
1970
1400
0.86
1580
1600
0.92
1230
1800
1.00
740
2000
1.10
590
2200
1.20
480
Application Example
1 nF
2.85 V
C
1 nF
100 pF
3 k
10 nF
REF.
OSCILLATOR
VCO
15 k
150 pF
2.85 V
1
3
4
2
5
6
7
LAT
DAT
CLK
PWRDN
REF_IN
LOCKDET
RES
VDDC
CPOUT
VSS1
VSS2
MAIN_IN
VDD2
VDD1
RREF
14
12
11
13
10
9
8
50
33 pF
50
VDDC
18 k
Figure 10. Application Circuit Diagram
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