73K322L-IP

The 73K322L modem supports various modes of operation, including 1200 or 0-300 bit/s full-duplex operation, 0-1200 bit/s half-duplex operation, and V.21 for 300 Hz FSK operation. It also operates in V.23, 1200 bit/s FSK mode. Additionally, it produces either 550 or 1800 Hz guard tone and recognizes and generates a 2100 Hz answer tone.

The 73K322L modem achieves low power consumption by operating from a single +5V supply with very low power consumption . Sorry, I couldn't find the answer in the PDF.

The main features of the 73K322L single-chip modem include its compatibility with CCITT V.23, V.22, and V.21 standards, capable of 1200 or 0-300 bit/s full-duplex operation or 0-1200 bit/s half-duplex operation with or without the back channel over dial-up lines. It produces guard tones, recognizes and generates answer tones, and supports V.21 for 300 Hz FSK operation. The modem integrates analog, digital, and switched-capacitor array functions on a single substrate, operates from a single +5V supply with low power consumption, and interfaces easily with popular one-chip microprocessors for control of modem functions. It is ideal for multi-standard data communications over the 2-wire switched telephone network, simplifying design requirements and increasing system reliability. The modem only requires the addition of a phone line interface, a control microprocessor, and an RS-232 level converter for a typical system.