LC73815M

• FSK modem (1200 bps)
• Circuit that automatically generates the start and stop bits used during FSK modulation
• Circuit that automatically generates the continuous mark signal at the start of transmission in FSK modulation
mode
• Circuit that automatically inserts the idle bits (5 or more bits) used in FSK modulation mode
• Built-in clock synchronous I/O shift register
• Detection of all 16 DTMF signals
• Digital guard timer circuits for the DTMF signal detection signal pins
• Operating voltage range: 4.5 to 5.5 V
• Low-power mode that can contribute to energy savings
• 36-pin package (MFP-36S)

Pre-call reporting services, such as Caller ID, reception, other data send/receive functions, and remote control of telephone answering machine applications.

The LC73815M is a telephone IC that integrates on a single chip both an FSK modem, which receives pre-call reporting services such as caller ID and performs other data send/receive functions, and a DTMF receiver circuit that can handle remote control functions for telephone answering machine applications.