BA8216 - Rohm

BA8216 Speech Network for Telephones

BA8216 FPin assignments 245 Communication ICs FApplication example BA8216 FExternal dimensions (Units: mm) 246 .

Features

1) Basic speech network functions built in. S Handset transmit and receive circuits S DTMF transmit circuit S Key tone input circuit S Mute control and side tone masking circuits 2) Can be used with 1.3kΩ loop circuit resistance and 100Ω telephone resistance. FBlock diagram 3) A BTL circuit is used for reception output, providing a wide dynamic range which enables use of a ceramic receiver. 4) Few external components required. 5) 14-pin DIP package. 238 Communication ICs FAbsolute maximum ratings (Ta = 25_C) BA8216 239 Communication ICs BA8216 FElectrical characteristics (unless otherw.