Datasheet Summary
PBL 385 71 June 1999
PBL 385 71 High current Speech and Line interface Circuit
Description.
PBL 38571 is a monolithic integrated speech transmission circuit for use in electronic telephones and as DECT line interface with balanced in
- and output. It is designed to acodate either a low impedance dynamic microphone or an electret microphone that can be supplied from the circuits own DC
- supply. A signal summing point at the transmitter input is available. An internally preset line length pensation can be adjusted with external resistors to fit into different current feed systems as for ex. 48 V, 2 x 200 ohms, 48 V, 2 x 400 ohms and 48 V, 2 x 800 ohms.The line regulation can be shut...