plug-in modules

CS740 USB 2.0 Interface

This is the standard interface supplied with the cleverscope. Average throughput is 18 Mbyte/sec. The interface is not isolated. Ground is shared between the PC, the Cleverscope, the probes, and the mains power supply.

CS741 Ethernet Interface

The ethernet interface enables the Cleverscope for use on a 10/100 Mbit/sec Ethernet network. It is plugged into the same location as the USB board and comes with a new back panel. Average throughput is 5 Mbyte/sec. The interface is magnetically isolated. There is no common ground to the PC.

The Cleverscope Acquisition Unit (CAU) includes an automatic sensing Ethernet connector that senses the speed (10 or 100 Mbit/sec) and automatically reverses Tx and Rx if the Ethernet cable has been crossed over.

The CAU can be operated with either a Fixed IP address, or as part of a DHCP network (Dynamic Host Configuration Protocol), in which case the CAU automatically acquires an address in the correct internet protocol address range.

CS712 and CS714 100MS/Sec Samplers

These are plug in modules that can either be purchased instead of the 10 bit sampler on initial order or can be purchased and installed retrospectively if the need arises. This is only available for the current "A" version.

These samplers are based on true 12 and 14 bit dual ADC's operating at 100 MS/sec. Performance is documented in our 'Digitize Performance' White Paper.

CS700 and CS700A Signal Generator

The CS700/A Signal Generator is a plug-in module for the CS328 and CS320 Oscilloscopes. If you order the CS700 at the same time as a CS328A or CS320A, the module will be factory fitted. Otherwise you will have to fit the module yourself.

The CS700 and CS700A have similar specifications but will only work in the relevant systems. "A" versions have serial numbers starting at 4000

The CS700 Signal generator generates sine, square and triangle output waveforms. The amplitude may be varied between 0 and 5V pk-pk, in 10mV steps. The offset maybe varied from –4 to +4V in 10 mV steps. The generator can be FSK and PSK modulated, and Frequency swept. The sweep may be synchronized with the Spectrum Analyser to carry out transfer response measurement. Two of the digital inputs may be allocated to switch between either of the two frequencies or two phases.

Specifications:

Item	Value
Function	Generate Sine, Square or Triangle output signals
Generation Method	Direct Digital Synthesis
Output Sampling Rate	50 MSa/sec
Frequency Range	Sine, Square: 0.003 Hz – 10 MHz Triangle: 0.003Hz – 1 MHz
Resolution	0.003Hz (<1KHz) 0.2 Hz (>1kHz)
Accuracy	50 ppm in 1 year, 0-40 deg C
Output Voltage Range	100mV – 5V p-p including DC offset
Output Voltage Resolution	10 mV
Output Impedance	50 ohm
Output Voltage Offset Range	-4 to +4V
Output Voltage Offset Resolution	10 mV
Frequency Shift Range	Any two frequencies in range 0.2Hz – 10 MHz
Phase Shift Range	Any phase difference between 0 – 360 degrees
Signal to Noise Ratio	-60 dBc typical
Total Harmonic Distortion	0 – 1 MHz : < -65 dBc > 1 MHz: < -35 dBc
Amplitude Flatness	± 0.2 dB
Amplitude Accuracy	± 2%
Square Wave Rise/Fall Times	< 12 ns
Protection	Short Circuit Protected ± 10V peak overdrive < 1 min