参数资料
型号: SI5351C-A-GU
厂商: Silicon Laboratories Inc
文件页数: 13/72页
文件大小: 0K
描述: IC CLK GEN PLL BLANK CUST 24QSOP
标准包装: 56
系列: MultiSynth™
类型: *
PLL:
输入: 时钟,晶体
输出: CMOS
电路数: 1
比率 - 输入:输出: 3:8
差分 - 输入:输出: 无/无
频率 - 最大: 133MHz
除法器/乘法器: 是/无
电源电压: 2.25 V ~ 3.63 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: 24-QSOP
包装: 管件
Si5351A/B/C
20
Preliminary Rev. 0.95
5.6. Replacing a Crystal with a Clock
The Si5351 can be driven with a clock signal through the XA input pin.
Figure 16. Si5351 Driven by a Clock Signal
5.7. HCSL Compatible Outputs
The Si5351 can be configured to support HCSL compatible swing when the VDDO of the output pair of interest is
set to 2.5 V (i.e., VDDOA must be 2.5 V when using CLK0/1; VDDOB must be 2.5 V for CLK2/3 and so on).
The circuit in the figure below must be applied to each of the two clocks used, and one of the clocks in the pair
must also be inverted to generate a differential pair. See register setting CLKx_INV.
Figure 17. Si5350C Output is HCSL Compatible
Multi
Synth
N
Multi
Synth
0
Multi
Synth
1
PLLB
PLLA
XA
XB
OSC
VIN = 1 VPP
25/27 MHz
Note: Float the XB input while driving
the XA input with a clock
0.1 F
Multi
Synth
N
Multi
Synth
0
Multi
Synth
1
PLLB
PLLA
OSC
Note: The complementary -180 degree
out of phase output clock is generated
using the INV function
R1
511
240
R2
ZO = 70
0
HCSL
CLKIN
R1
511
240
R2
ZO = 70
0
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