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We appreciate your patience as we improve our online experience.
NI ELVIS Platform functions available at the ETT-202 front panel:
All NI ELVIS functions provided are directly connected to the NI ELVIS signals, and their performance is in accordance with NI ELVIS specifications.
Digital I/O:
Digital inputs D IN-0 to IN-3
Digital outputs D OUT-0 to OUT-3
Function Generator:
Input VCO IN;
Outputs FUNCTION OUT and SYNC OUT
Analog I/O:
Inputs ACH0 and ACH1
Outputs DAC0 and DAC1
Variable Power Supplies:
Outputs "+" and "-"
Adder 1:
Dual input
Variable gain from 0 to 2 (inverting)
Bandwidth approx. 600kHz
Adder 2:
Dual input
Fixed gain of 1
Bandwidth approx. 600kHz
Amplifier:
Bandwidth: DC to approx. 600kHz
Gain: 0.2 to 10
Channel Module:
1.CHANNEL BPF
Fcenter = 100kHz;
Passband = 24kHz; (from 88 kHz & 112 kHz)
Stopband = 140kHz, -35dB (approximately at 30kHz & 170kHz);
Gain = 1;
Type: 6th order Chebychev with 0.1dB ripple
2. BASEBAND LPF
Fcut-off = 1.6 kHz;
Gain = 0.9;
Type: 4th order Butterworth
Dual Analog Switch & Sample/Hold
Analog Input Bandwidth 50kHz
Maximum CONTROL clock 100kHz
CONTROL Input Levels digital-level only, 0V and 5V
Maximum Analog Input Level 4Vpk-pk
Headphone Amplifier
Output power 125mW, stereo socket
Headphone Type and Connector 3.5mm stereo, > 8ohm impedance
Line Code Encoder
Input data from SEQUENCE GENERATOR “X” data sequence
CLK same digital-level clock as SEQUENCE GENERATOR CLK signal,
fmax > 100kHz
Line codes: NRZ-L, RZ-AMI, Bi-phase, NRZ-M
Output LINE-CODE signal +/-2Vp-p
Master Signals:
Output Frequencies carrier: 100kHz in quadrature and a third digital signal
sample clock 8.333kHz (sub-multiple of the carrier)
message: 2.083kHz sinusoidal and digital,
Output Levels 4V pk-pk, analog (+/- 5%)
Digital level, 0V to 5V
Multipliers:
3 independent dual input multipliers
Bandwidth approx 600kHz
Characteristic k.X(t).Y(t)
k approx 1
Noise Generator:
Bandwidth 10Hz to < 240kHz, "white" noise
Maximum level approx 4.8Vrms
Attenuator steps 0dB (approx 4.8Vrms), -6dB (approx 2.4Vrms)
and -20dB (approx 0.48Vrms)
PCM Encoder:
Input Vin +/-2Vpk, DC coupled
Bit Clock Input >128kHz, digital-level
Output Signal serial, digital-level data stream in offset binary format
Output Format 8 bits data
Frame Synchronization FS synchronization signal coincident with frame’s LSB
TDM Mode two input Time Division Multiplex system
No anti-aliasing filters
PCM Decoder:
Input PCM DATA serial, digital-level data stream in offset binary format
Input Format 8 bits
Bit Clock Input <128kHz, digital-level;
Output Signal approximately +/-2Vpk, DC coupled
TDM Mode two channel TDM system
Outputs do no include reconstruction filters
Phase Shifter:
Bandwidth > 200kHz
Frequency Ranges two regions
HI approx. 100kHz;
LO approx. 2kHz
Auto detect HI/LO boundary approx. 40kHz
Sequence Generator:
Input Clock Range TTL 1Hz to 100kHz
Number of Sequences 2: X and Y
Sequence Lengths X = 31 bits, Y = 255 bits
Sync indicates start of sequence X
Serial to Parallel:
Inputs SERIAL digital-level data;
CLK is the digital-level clock signal;
Maximum CLK Rate approx 100kHz
Outputs bipolar parallel data output
Speech:
Microphone electret-type with frequency response of 300Hz to 3kHz
Output typically 0.6 Vrms
Tunable LPF
Filter Range 600 Hz to 12 kHz
Filter Order 8th order, Elliptic
Stopband Attenuation > -50dB at 1.4 fc and Passband Ripple < 0.5dB
Gain Control 0 to 1.6
Twin Pulse Generator:
Clock Frequency Range < 8kHz
Pulse WIDTH 5us < tw < 40us
Pulse DELAY Q2-Q1 50us < td < 300us
Utilities:
1.COMPARATOR
Operating Range > 100kHz
TTL Output Risetime 500nsec (typically)
2.RECTIFIER
Bandwidth DC to 100kHz (approx)
3.DIODE & LPF
LPF -3dB 2.6kHz (approx)
4.RC LPF
LPF -3dB 2.6kHz (approx)
MANUAL/PC-CONTROL MODES
All front panel controls can be varied either manually or via PC-control.
PC-control can only be implemented by NI LabVIEW and DAQmx interface via NI ELVIS edge connector
PC-control software interfaces:
DATEx SFP, DATEx Toolbar SFP and DATEx low level VIs
STANDARD ACCESSORIES
Patch Cords 20 x 2mm-2mm stackable patch cords
Scope leads 3 x 2mm-to-BNC coaxial oscilloscope leads
DMM leads 2 x 2mm-to-4mm patch cords
Headphones 1 x lightweight stereo headphones,
24ohm, 3.5mm male stereo plug
Documentation 1 x User Manual; 1 x Experiment Manual
COMMON ELECTRICAL SPECIFICATIONS
Input impedance: 50kohm
Output impedances:
Analog signals: 330 ohm
Digital signals: 47 ohm
Maximum allowable input voltage: +/- 12V
Maximum output voltage : +/- 12V
POWER SUPPLY
Power Source supplied via NI ELVIS edge connector
+5, +15, -15 rails consume <200mA each
ENVIRONMENTAL
Operating Temperature Range 10 to 30 degrees C
Storage Temperature Range 5 to 40 degrees C
Humidity up to 90% RH, non-condensing
PHYSICAL
Dimensions front panel 280 x 215mm;
Product Page: NI ELVIS II/Emona Telecommunications Bundle
Emona ETT-202 DATEx for NI ELVIS FAQ: Part 1
Emona ETT-202 DATEx for NI ELVIS FAQ: Part 2
Emona ETT-202 DATEx for NI ELVIS FAQ: Part 3