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AK1541 参数 Datasheet PDF下载

AK1541图片预览
型号: AK1541
PDF下载: 下载PDF文件 查看货源
内容描述: 20〜 600MHz的Σ-Δ小数-N频率合成器 [20 to 600MHz Delta-Sigma Fractional -N Frequency Synthesizer]
分类和应用:
文件页数/大小: 36 页 / 909 K
品牌: AKM [ ASAHI KASEI MICROSYSTEMS ]
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[AK1541]  
2. Power-up Sequence  
PVDD,CPVDD  
PDN1  
50s  
1.8V  
On-chip LDO  
0V  
(1.8V)  
Refin must be input before setting [PDN2] to “High”  
Refin  
Dont care  
input  
H or L  
Registers can be written  
Write to register  
After more than 50s from the [PDN1] is set to High”  
Here [PDN1] is set to Highafter or at the same time as power-up.  
PDN2(PLL)  
CP  
HiZ  
Output(*1)  
*1 CP output is not defined before writing the data in  
all addresses of the register. After writing them,  
CP output can be controlled by register.  
Fig. 13 Power Sequence  
MS1043-E-05  
31  
2013/03  
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