参数资料
型号: CXA3266Q
元件分类: PLL合成/DDS/VCOs
英文描述: PHASE LOCKED LOOP, 0.12 MHz, PQFP48
封装: PLASTIC, QFP-48
文件页数: 33/62页
文件大小: 929K
代理商: CXA3266Q
CXA3266Q
- 39 -
Next, the various parameters inside an actual CXA3266Q are obtained.
The CXA3266Q's charge pump output block and the LPF circuit are as follows.
First, KPD is as follows.
KPD = 100
/2π or 200/2π or 400/2π or 800/2π (A/rad)
Typical KVCO characteristics curves for the CXA3266Q's internal VCO are as follows.
Therefore, KVCO is as follows.
KVCO = 2
π 75M or 2π 37.5M or 2π 18.75M or 2π 9.375M (rad/sV)
S1
S2
To VCO
VCC
C2
C1
R1
333
CXA3266Q
100
20k
100A
or 200A
or 400A
or 800A
100A
or 200A
or 400A
or 800A
45
46
234
50
100
150
VCO input voltage [V]
VCO
frequency
[MH
z]
VCO DIV = 1/1
VCO DIV = 1/2
VCO DIV = 1/4
200
250
0
VCO DIV = 1/8
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