The CNA (cable-not-active) terminal provides a high when there are no twisted-pair cable ports receiving incoming bias (i.e., they are either disconnected or suspended), and can be used along with LPS to determine when to power-down the PD11394P23. The CNA output is not debounced. When the PD terminal is asserted high, the CNA detection circuitry is enabled (regardless of the previous state of the ports) and a pull-down is activated on the RESET terminal so as to force a reset of the PD11394P23 internal logic.
QVS49S-145-26.800MHZ on stock| Pin No. | Pin name |
| 1 | SP_IN_LCH |
| 2 | SP_MUTE |
| 3 | ST/MN |
| 4 | BASSBOOST |
| 5 | LINE_IN_LCH |
| 6 | BIAS |
| 7 | BEEP_IN |
| 8 | LINE_IN_RCH |
| 9 | HP_VOL |
| 1 0 | HP_MUTE |
| 11 | SUSPEND |
| 12 | SP_IN_RCH |
| 1 3 | HPOUT_RCH |
| 14 | VCC_RCH |
| 1 5 | BOOST_R_LCH |
| 1 6 | SPOUTl_RCH |
| 17 | SPOUT2_RCH |
| 18 | GND_RCH |
| 1 9 | GND_LCH |
| 20 | SPOUT2_LCH |
| 21 | SPOUTl_LCH |
| 22 | BOOST_R_LCH |
| 23 | VCC_LCH |
| 24 | HPOUT_LCH |
| |
| Symbol | Parameter | Min.(1) | Typ | Max | Unit |
| tPLH tPHL | Data Propagation Delay (2,3) An to/from Bn | | | 0.12 | ns |
| tPZL tPZH | Switch Turn-on Delay BEn or BEn to An/Bn | 1.5 | | 5.6 | ns |
| tPLZ tPHZ | Switch Turn-off Delay (2) BEn to An/Bn | 1.5 | | 4.5 | ns |
| | | | | |
