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AK1543 PDF预览

AK1543

更新时间: 2024-01-24 00:41:32
品牌 Logo 应用领域
AKM 信号电路锁相环或频率合成电路
页数 文件大小 规格书
35页 840K
描述
1300MHz Delta-Sigma FractionalSigma -N Frequency Synthesizer

AK1543 技术参数

生命周期:Active零件包装代码:QFN
包装说明:HVQCCN,针数:20
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.68Is Samacsys:N
模拟集成电路 - 其他类型:PHASE DETECTORJESD-30 代码:S-XQCC-N20
长度:4 mm功能数量:1
端子数量:20最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:UNSPECIFIED
封装代码:HVQCCN封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE认证状态:Not Qualified
座面最大高度:0.75 mm最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2.7 V标称供电电压 (Vsup):3.3 V
表面贴装:YES温度等级:INDUSTRIAL
端子形式:NO LEAD端子节距:0.5 mm
端子位置:QUAD宽度:4 mm
Base Number Matches:1

AK1543 数据手册

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[AK1543]  
AK1543  
1300MHz Delta-Sigma Fractional-N Frequency Synthesizer  
1. Overview  
The AK1543 is a Delta-Sigma Fractional-N PLL (Phase Locked Loop) frequency synthesizer with a frequency switching  
function, covering a wide range of frequencies from 400 to 1300MHz. This product consists of an 18-bit Delta-Sigma  
modulator, a low-noise phase frequency comparator, a highly accurate charge pump, a reference divider and a  
dual-module prescaler (P/P+1).  
An excellent PLL can be achieved by combining this synthesizer with the external loop filter and VCO (Voltage Controlled  
Oscillator). The access to the registers is controlled via a three-lines serial interface. The operating supply voltage is from  
2.7V to 5.5V; and the charge pump and serial interface can be driven by individual supply voltages.  
2. Features  
Delta-Sigma Fractional-N frequency synthesizer providing shorter lockup time, lower phase noise and low spurious  
performance  
Operating frequency:  
400 to 1300MHz  
On-chip charge pump for fast lockup  
Programmable charge pump current:  
In a normal operating scheme, the charge pump current can  
be set in 16 steps, in the range from 10.6uA to 168.9uA.  
In a fast lockup scheme, the charge pump current can be  
set in 8 steps, in the range from 0.84mA to 2.32mA.  
2.7 to 5.5 V (PVDD and CPVDD pins)  
Supply Voltage:  
Separate power supply for the charge pump: PVDD to 5.5V (CPVDD pin)  
On-chip power-saving features  
On-chip PLL lock detect feature:  
Direct output to the PFD (Phase Frequency Detector) or digital  
filtering output can be selected.  
Very low consumption current:  
Package:  
4.1 mA typ. (excluding a charge pump current)  
24pin QFN (0.5mm pitch, 4mm 4mm 0.7mm)  
-40C° to 85C°  
Operating temperature:  
MS1206-E-02  
1
2013/03  
 
 

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