From old datasheet system bipolar integrated circuit designed as a telephone bell replacement Low drain current,Adjustable 2-frequency tone,Built-in hysteresis bipolar integrated circuit designed as telephone bell replacement
telephone Line interface circuit for DECT/ DAM/ CT Unisolated or Isolated telephone Line interface circuit for DECT DAM CT Unisolated or Isolated telephone Line interface circuit for DECT, DAM, CT Unisolated or Isolated 电话线接口电路面向DECT,大坝,或孤立的CT Unisolated TELECOM-SLIC, PDSO20