Description

Zarlink Semiconductor's MH88422 Model, fax and modem interface (V29), variants available with different line impedances, and provides reinforced barrier to good, international PTT requirements. Transformer-less 2-4 wire conversion, integral loop switch, dial pulse and DTMF operation, line state detection outputs, loop current/ringing outputs, a single +5 V operation, low on-hook power (5mW), and full duplex data transmission. Simple Type: Semiconductor The Zarlink MH88422 Data Access Arrangement (D.A.A.) provides a complete interface between data transmission equipment and a telephone line. All of the functions are integrated into a single, thick, film hybrid module which provides a very high voltage isolation, very high reliability, and optimum circuit design needing a minimum of external components. Download the datasheet (PDF)