BA8216 Rohm, BA8216 Datasheet

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BA8216

Manufacturer Part Number
BA8216
Description
Speech network for telephones
Manufacturer
Rohm
Datasheet

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The BA8216 is a speech network IC which possesses the basic functions required for handset communications. In addi-
tion to amplifying signals from a transmitter and sending them to a telephone line, it also amplifies only reception signals
from a telephone line and drives the receiver.
FApplications
Telephones and telephone equipment
FFeatures
1) Basic speech network functions built in.
2) Can be used with 1.3k
FBlock diagram
238
Speech network for telephones
BA8216
Communication ICs
S Handset transmit and receive circuits
S DTMF transmit circuit
S Key tone input circuit
S Mute control and side tone masking circuits
100 telephone resistance.
loop circuit resistance and
3) A BTL circuit is used for reception output, providing
4) Few external components required.
5) 14-pin DIP package.
a wide dynamic range which enables use of a ceram-
ic receiver.

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BA8216 Summary of contents

Page 1

... Speech network for telephones BA8216 The BA8216 is a speech network IC which possesses the basic functions required for handset communications. In addi- tion to amplifying signals from a transmitter and sending them to a telephone line, it also amplifies only reception signals from a telephone line and drives the receiver. ...

Page 2

... Communication ICs FAbsolute maximum ratings (Ta = 25_C) BA8216 239 ...

Page 3

... Communication ICs FElectrical characteristics (unless otherwise noted 25_C, S 240 = 1kHz, BPF = 400Hz to 30kHz BA8216 ...

Page 4

... Communication ICs FElectrical characteristic curves BA8216 241 ...

Page 5

... Communication ICs FMeasurement circuits 242 BA8216 ...

Page 6

... Communication ICs BA8216 243 ...

Page 7

... DTMF send and key tone input The BA8216 has a mute switch which can be switched between a “handset send and receive” mode and a “DTMF send and key tone input” mode by an external logic signal. In the “DTMF send and key tone input” ...

Page 8

... Communication ICs FPin descriptions FPin assignments BA8216 245 ...

Page 9

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

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