Description
Product Introduction
The PG24192 is a PXI, Dual Channel Arbitrary
Waveform Generator. It features fully differential
outputs and a very low distortion. A programmable
common mode voltage allows adapting to circuits
that need a DC offset at their inputs. For single
ended applications the positive output as well as
the negative output can be used.
The unit is very suitable for audio type of
measurements. The ranging is continuous from
10mVpp to 10Vpp with a resolution of <0.1dB. The
two channels are ideal for stereo and crosstalk
measurements. There is a 1.2kHz low pass filter
that reduces the harmonics for 1kHz signals to
even lower levels. For most measurements the
22kHz filter is an excellent choice. If wide band
operation is required the 100kHz filter can be
selected.
The internal clock sources can generate all
standard audio sample rates and more. The
External clock and trigger capability give the user
full control of the measurement timing. If the
PD24222 is used as digitizer, the clocks of the two
units can be synchronized via the local bus
capability of the PXI backplane. This allows
coherent clocking for best measurement results.
Features
• Two channels, fully differential outputs
• Excellent dynamic performance
• 125dB THD at 1kHz with 1.2kHz filter
• Programmable common mode level
• 10mVpp to 10Vpp output range
• Low impedance or 600-Ω output impedance
• Internal clock supports all standard audio rates
• Local bus clock for sync. to PD24222
Technical Specifications
General
| Channels | 2 |
| Resolution | 24-bit |
| Update rate, internal clock | 3.675ksps – 192ksps |
| Update rate, external clock | 1ksps – 220ksps |
| Memory depth | 1M-word per channel |
| Output range | 10mV to 10Vpp continuous |
| Output configuration | Single ended or differential |
| Output impedance | 600-Ω or low impedance |
| Analog filters (low pass) | 100kHz, 22kHz or 1.2kHz |
| Output operating area | -8V to +8V |
Accuracy
| Amplitude accuracy | ±0.05dB @ 1kHz/10Vpp |
| Frequency flatness | 0.2dB from 20Hz to 20kHz |
Dynamic characteristics
| SINAD (1kHz) | 107dB (BW=20kHz) |
| SFDR (1kHz) | 112dB |
| THD (1kHz) | 110dB |
| THD (1kHz with 1.2kHz filter) | 125dB (typical) |
| THD (10kHz) | 103dB |
(Vout = 10Vpp, f-upd.=192ksps)
Common mode voltage source
| Voltage range | -5V to +5V |
| Resolution | 16-bit (152µV) |
Clock & Trigger inputs
| Clock Input | 50-Ω, VIL<0.6V, VIL>1.4V |
| Trigger input | 10kΩ, VIL<0.8V, VIL>2.0V |
Triggering
| Trigger sources | Software, External, PXI STAR, PXI TRIG 0..7 |
| Trigger capabilities | edge or level, positive or negative going. Independent trigger source selection per channel |
