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 DC settling time` Interface to peripheral circ...
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...
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Transformers Audio & Signal 193uH DCR .35ohms 12pin SMD 6 windings
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. PCA1070 makes the IC PCA1070 adaptable to nearly all worldwide country requirements and to a various range of speech transducers, without changing the (few) external components.
The parameters of PCA1070 are stored in the EEPROM of a microcontroller and are loaded into the PCA1070 during the start-up phase of the transmission IC after hook-off. The PCA1070 also allows adaptation to the connected telephone line by reading the line current via the I2C-bus and processing it in the microcontroller.