參數(shù)資料
型號(hào): foa3251d
廠(chǎng)商: SIEMENS AG
英文描述: 2.5 Gb/s Laser Driver(2.5 Gb/s激光驅(qū)動(dòng)器)
中文描述: 2.5 Gb / s的激光驅(qū)動(dòng)器(2.5 Gb / s的激光驅(qū)動(dòng)器)
文件頁(yè)數(shù): 11/23頁(yè)
文件大小: 332K
代理商: FOA3251D
FOA3251B1
S1028C1
Functional Description
Data Sheet
3-11
08.99
CONFIDENTIAL
Figure 2-2 PFD characteristic
The VCO is a LC type with a center frequency of 2.5GHz. The measured tuning range is
shown in figure 2-3.
Figure 2-3 Tuning range LC VCO
The delay line is programmable in 8 steps of about 50 ps. The clock signal is adjustable
over 1 period (400 as) and can be easily adapted to different applications.
-4
Π
K
d
2
Π
-K
d
2
Π
2
Π
4
Π
-2
Π
υ
e
U
pfd
Tuning range 3.3V, temperature -25, 20, 85
o
C
2
2,2
2,4
2,6
2,8
3
-3
-2
-1
0
Tuning Voltage / V
F
m25 Center Freq.
[GHz]
20 Center Freq.
[GHz]
85 Center Freq.
[GHz]
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