2-3
IM 720120-01E
Explanation of Functions
1
2
3
4
5
6
7
App
Index
Signal Flow on the SL1000
The flow of the signal applied to the input terminal varies depending on the input module.
Here, the High-Speed 100 MS/s, 12-Bit Isolation Module (720210 (HS100M12)) will used
an example to describe the signal flow. (For details on the signal flow on each module,
see the block diagram.)
The signals applied to the two input terminals are first processed by the input section of
each module.
The 720210 (HS100M12) attenuates or amplifies the input signal using the attenuator
(ATT) and amplifier (AMP) to normalize it to a voltage level that the A/D converter can
process.
Then, the filter (FLT) limits the bandwidth, and the A/D converter samples the input signal
at 100 MS/s and converts the samples into digital data through quantization.
The digital data passes through the isolator and ASIC and enters the waveform
processing ASIC (ACQ-ASIC).
The 16-channel digital data collected at the ACQ board passes through the waveform
processing ASIC (ACQ-ASIC) and are stored in the acquisition memory (ACQ Memory).
The digital data stored in the ACQ Memory is compressed by the high-speed waveform
processing ASIC (ACQ-ASIC) and is transferred to a PC as waveform display data at a
high data rate via the USB or Ethernet interface. If data is recorded to the hard disk in
real time, the digital data stored in the ACQ Memory is transferred to the internal hard
disk using a high-speed internal bus separately from the waveform display data. At the
same time, the data is also transferred to a PC via the USB or Ethernet interface and
stored to the PC internal hard disk.
2.1 System Configuration and Block Diagram