PCA1070 Datasheet - NXP

PCA1070 Multistandard programmable analog CMOS transmission

The PCA1070 is a CMOS integrated circuit performing all speech and line interface functions in fully electronic telephone sets. The device requires a minimum of external components. The transmission parameters are programmable via the I2C-bus. This makes the IC adaptable to nearly all worldwide coun.

PCA1070 Features

* Line interface with:

* Voltage regulator with programmable DC voltage drop

* Programmable set impedance

* Output to control an external switching MOS transistor for pulse dialling

* Programmable DC voltage during pulse dialling

* Circuitry for short

PCA1070_PhilipsSemiconductors.pdf