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BA6569AFP 반도체 회로 부품 판매점

Speech network for telephones



ROHM Semiconductor 로고
ROHM Semiconductor
BA6569AFP 데이터시트, 핀배열, 회로
Communication ICs
Speech network for telephones
BA6569AS / BA6569AFP
The BA6569AS and BA6569AFP are speech networks which possesses the basic functions required for handset com-
munications. In addition to amplifying signals from a transmitter and sending them to a telephone line, they also amplify
only reception signals from a telephone line and drive the receiver. In addition to a function which compensates for fluc-
tuation in the transmission and reception volume caused by the length of the telephone line (AGC), they are also
equipped with a manual PAD function in order to accommodate PBX.
FApplications
Telephones and telephone equipment
FFeatures
1) Basic speech network functions built in.
2) Single output pin of reception pre-amplifier is sepa-
rate.
3) Single input pin of reception pre-amplifier is sepa-
rate, enabling mixing of input.
4) Input to microphone pre-amplifier is balanced and of-
fers high resistance to in-line noise.
5) Input pin of MF pre-amplifier enables mixing of input.
6) Manual pad pin included.
7) Pre-amplifiers for reception, microphone, and MF
employ AGC based on telephone line current.
8) AC impedance can be raised by altering the posi-
tive feedback. This enables configuration of power
supply circuits for microcomputers and other ap-
plications using only a single resistor.
9) A BTL circuit is used for reception output, and the
wide dynamic range enables both dynamic and ce-
ramic receivers to be accommodated.
10) Few external attachments are required.
11) 22-pin SDIP and 24-pin HSOP packages available.
FAbsolute maximum ratings (Ta = 25_C)
226


BA6569AFP 데이터시트, 핀배열, 회로
Communication ICs
FBlock diagram
BA6569AS / BA6569AFP
227




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BA6569AFP

Speech network for telephones - ROHM Semiconductor