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BA6569AFP датащи(PDF) 1 Page - Rohm |
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BA6569AFP датащи(HTML) 1 Page - Rohm |
1 / 12 page 226 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) |
Аналогичный номер детали - BA6569AFP |
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Аналогичное описание - BA6569AFP |
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