MC145443B

SINGLE-CHIP 300-BAUD MODEM

Single–Chip300–BaudModem TheMC145442BandMC145443Bsilicon–gateCMOSsingle–chiplow–speedmodemscontainacompletefrequencyshiftkeying(FSK)modulator,demodulator,andfilter.ThesedevicesarecompatiblewithCCITTV.21(MC145442B)andBell103(MC145443B)specifications.Bothdevices

MC145443B_ARCHIVED

Single-Chip 300-Baud Modem; \n\t•Compatible with Bell 103\n\t•Low-Band and High-Band Band-Pass Filters On-Chip\n\t•Simplex, Half-Duplex, and Full-Duplex Operation\n\t•Originate and Answer Mode\n\t•Analog Loopback Configuration for Self Test\n\t•Hybrid Network Function On-Chip\n\t•Carrier Detect Circuit On-Chip\n\t•Adjustable Transmit Level and CD Delay Timing\n\t•On-Chip Crystal Oscillator (3.579 MHz)\n\t•Single 5 V Power Supply\n\t•Internal Mid-Supply Generator\n\t•Power-Down Mode\n\t•Pin Compatible with MM74HC943\n\t•Capable of Driving -9 dBm into a 600 ohm Load\n\n\nTest;

Overview The MC145443B has been discontinued. Suggested replacement: none.The MC145443B is a silicon-gate CMOS single-chip, low-speed modem containing a complete frequencyshift keying (FSK) modulator, demodulator, and filter. This device is compatible with Bell 103 specifications.The MC145443B provides full-duplex or half-duplex 300-baud data communication over a pair of telephone lines. It also includes a carrier detect circuit for the demodulator section and a duplexercircuit for direct operation on a telephone line through a simple transformer.

恩XP

MC145443BDW

SINGLE-CHIP 300-BAUD MODEM

Single–Chip300–BaudModem TheMC145442BandMC145443Bsilicon–gateCMOSsingle–chiplow–speedmodemscontainacompletefrequencyshiftkeying(FSK)modulator,demodulator,andfilter.ThesedevicesarecompatiblewithCCITTV.21(MC145442B)andBell103(MC145443B)specifications.Bothdevices

MC145443BDW

Single-Chip 300-Baud Modem

LegacyDevice:MotorolaMC145442B,MC145443B TheML145442andML145443silicon–gateCMOSsingle–chiplow–speedmodemscontainacompletefrequencyshiftkeying(FSK)modulator,demodulator,andfilter.ThesedevicesarecompatiblewithCCITTV.21(ML145442)andBell103(ML145443)specifications.

MC145443BP

SINGLE-CHIP 300-BAUD MODEM

Single–Chip300–BaudModem TheMC145442BandMC145443Bsilicon–gateCMOSsingle–chiplow–speedmodemscontainacompletefrequencyshiftkeying(FSK)modulator,demodulator,andfilter.ThesedevicesarecompatiblewithCCITTV.21(MC145442B)andBell103(MC145443B)specifications.Bothdevices

MC145443BP

Single-Chip 300-Baud Modem

LegacyDevice:MotorolaMC145442B,MC145443B TheML145442andML145443silicon–gateCMOSsingle–chiplow–speedmodemscontainacompletefrequencyshiftkeying(FSK)modulator,demodulator,andfilter.ThesedevicesarecompatiblewithCCITTV.21(ML145442)andBell103(ML145443)specifications.

MC145443BDW

Single?밅hip 300?밄aud Modem

MC145443BP

Single?밅hip 300?밄aud Modem