Hello, I am currently working on a project where we are using an HMC1033 N-PLL to turn an input 10MHz clock signal into an output 125MHz differential clock signal. We have designed a PCB ourselves to use with the HMC1033, and verified its connections…

Hello,

is there a minimal configuration available for the HMC1033? I'm designing a testbed for a board containing this IC and fine tuning will be done later by different people. For simple liveness test I'd link to have a simple configuration that takes…

HMC1033寄存器数据按照芯片手册及 Hittite Pll 评估软件中寄存器的值。

spi已经测试可用。

HMC1033的测试CP脚可控。

但是输出一直是36M。

更改整数分数寄存器输出仍不变。

I configuration my hmc1033 board  with  the procedure,generation 500MHz clock:

HMC1033_Write(0x0A,0x2006); //reg A
HMC1033_Write(0x08,0xC1BEfF);//reg8
HMC1033_Write(0x0F,0x81); //reg f
HMC1033_Write(0x07,0x14d); // reg7

HMC1033_Write(0x0B,0xF8061);//reg…

I didn´t found the information of the Vtune Voltage Range in the datasheet of the HMC1033.

I suppose it´s 0-3.3V but I wanted to be sure.

Thanks in advance!

Hello,

I would like to know if the PLL HMC1033 could be used with LT5512 Mixer.

What is the output impedance of HMC1033 and how is the matching circuit with LT5512. Should I go for differential or single-ended I/O ?

Thanks in advance,

XL

Dear Sirs,

according to https://www.hittite.com/content/documents/operating_guide/pll_operating_guide_rf_vcos.pdf there shall be no spurious at frequencies other than multiples of PD frequency in Integer Operation. Unfortunately, that is not my case…

自己做了hmc1033的PCB板，用来产生500MHZ的时钟信号，写寄存器的代码如下：

HMC1033_Write(0x0A,0x2006); //reg A
HMC1033_Write(0x08,0xC1BEfF);//reg8
HMC1033_Write(0x0F,0x81); //reg f
HMC1033_Write(0x07,0x14d); // reg7

HMC1033_Write(0x0B,0xF8061);//reg b
HMC1033_Write(0x0C,0x0); //reg …

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