| SYMBOL | PARAMETER | CONDITIONS | MIN | TYP. | MAX | UNIT |
| VDD | operating supply voltage | | 2.5 | | 6.0 | V |
| Vstb | standby supply voltage | | 1.8 | | 6.0 | V |
| IDD(stb) | standby current (on hook) | Vstb=1.8 V | | 1.4 | 4 | |
| IDD(conv) | operating current in conversation mode | VDD=3V | | | 150 | |
| IDD(pulse) | operating current in pulse dialling mode | VDD=3V | | | 200 | |
| lDD(DTMF) | operating current in DTMF dialling mode | VDD=3V | | 0.6 | 0.9 | mA |
| VHG(RMS) | DTMF output voltage level for HIGH group (RMS value) | | | 192 | | mV |
| VLG(RMS) | DTMF output voltage level for LOW group (RMS value) | | | 150 | | mV |
| Gv | voltage gain (pre-emphasis) of group | | | 2.1 | | dB |
| THD | total harmonic distortion | | | -25 | | dB |
| Tamb | operating ambient temperature | | -25 | | +70 | ][C |
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