While I was attending EELive 2014 I had the opportunity to speak with the team at the Teledyne LeCroy booth. I was there marveling at the hardware when I was approached by Dan, the director of distribution. As we spoke, I was impressed with his technical knowledge, though it was not just him. All the representatives at the booth were extremely knowledgeable about the internals of their products.
As I left the booth, Dan offered to lend me one of their HDO6000 oscilloscopes and a WaveStation 3000 (Figure 1) for review. Of primary interest to me is taking a look at the performance of the HDO6000.
The Teledyne LeCroy WaveStation 3000 produces waveforms with 14-bit vertical resolution.
The HDO series oscilloscopes (Figure 2) feature a high-speed 12-bit ADC analog-to-digital converter. Its filtering and sampling techniques let you achieve 15 bits of effective resolution, depending on the sampling rate. Most standard oscilloscopes on the market only offer eight bits of resolution. There are a few advantages that come to the user by virtue of this high resolution.
The first advantage is wider dynamic range, which lets you see the fine detail while it maintains a large peak-to-peak voltage input range. It also provides some simplification in the analog front-end of the device by reducing the number of attenuation or gain and filter blocks. One of the key things will be to see if the noise floor of the device is low enough to take advantage of the extra four bits of resolution.
Teledyne LeCroy HDO6000, 12-bit Oscilloscope. Help me evaluate it.
With the chance to review this hardware, I have a bit of a dilemma. I will have a very high-end piece of equipment, but without a plan for the best way to put it through its paces. This is where I would like your input. What sort of testing would you like to see in a review of this hardware? I have put some thought to the problem, and I have decided to use one of my projects to perform some practical evaluations of the hardware and its usability. Here too, I would love some feedback on the best way of performing this evaluation in relation to my project.
My benchmarking project to test the HDO6000 and the WaveStation 3000 is the design and testing of a radio receiver for RC submarines. This receiver will operate in the 75 MHz-76 MHz range. I plan on testing the Silicon Labs SI4704/5 series RFICs, which are intended for reception of FM broadcast radio. There are some features of this chip that may lend itself well to this application, but the primary thing that needs to be tested is its channel selectivity. Since I'm using the device in an application for which it was not originally intended, there may be some issues which need to be overcome related to selectivity.
Page 2: Test setups