![[Warning]](../pics/warning.gif) | Warning |
|---|---|
Do not connect any voltaged lines (for example Telephone, ISDN) to any output of the modules RM220-122, RM220-222 and RM220-223. External voltage will cause damages on internal circuits. | |
| Analog reference voltage level | 0 dBu = 0.775 V (RMS) |
| Digital reference level | 0 dBFS = full scale modulation |
| Frequency range for measurements | 20 Hz ... 20 kHz |
| Sampling frequency | 44.1 kHz ... 48 kHz |
| Max. input level | 18 dBu (electrically balanced) |
| Frequency response deviation | < 0.5 dB |
| Gain | 0 ... 70 dB |
| Input sensitivity | -66 dBu |
| Input impedance | >= 8k ohm |
| Converter technology | 24 bit, (64 x oversampling Sigma-Delta) |
| Dynamic range | typical 106 dB (A-weighted) |
| THD+N | < -80 dB (-1 dBFS, 0 dB analog gain) / < 0.01% |
| Common mode rejection | > 60 dB |
| Crosstalk | < -90 dB |
| Max. output level (headphones, single ended) | 15 dBu (unbalanced) |
| Frequency response deviation | < 0.3 dB |
| Output impedance | typical 17 ohm |
| Load impedance | >= 80 ohm (outputs short circuit protected) |
| Converter technology | 24 bit, (128 x oversampling Sigma-Delta) |
| Dynamic range | typical 108 dB (A-weighted) |
| THD+N | < -82 dB (-1 dBFS) / < 0.008% |
| Crosstalk | < -90 dB |
| 2 non-insulated analog control inputs (ACI) to connect external potentiometers for level control. (Connect 10k ohms linear potentiometer between wiper and GND (left detend), leave open right detend of potentiometer.) | Potentiometer 10k ohm to GND or 0 ... 3.3V control voltage, overvoltage protected |
| 2 GPIs: non-insulated TTL-Inputs with internal pull up resistor (10k ohms to 5 V) | switch contact to GND or TTL level (low active), overvoltage protected |
| 4 GPOs: electronic relay, insulated | max. 0.2 A / 30 V DC / 25 V AC |