MC145443BDW ,Single-Chip 300-Baud Modem**Order this documentby MC145442B/DSEMICONDUCTOR TECHNICAL DATA** ** **The MC145442B and MC145443B ..
MC145443DW ,Single-Chip 300-Baud ModemMAXIMUM RATINGS (Voltages Referenced to V )SSThis device contains circuitry to protect theRating Sy ..
MC145443P ,Single-Chip 300-Baud ModemELECTRICAL CHARACTERISTICS (V = 5.0 V ± 10%, T = – 40 to + 85°C)DD ACharacteristic Symbol Min Typ M ..
MC145443P. ,Single-Chip 300-Baud ModemBLOCK DIAGRAM4CDT7LOW–BANDCDA15BPFRxA2 3CARRIERCDDETECT–AAF S/H16+RxA1 5AC AMPDEMOD RxD*HIGH–BAND10 ..
MC145444DW ,Single-Chip 300-Baud Modem**Order this documentby MC145444/DSEMICONDUCTOR TECHNICAL DATA**Advance Information20** ** **H SUFF ..
MC145444H ,Single-chip 300-baud modemMAXIMUM RATINGS* (Voltages Referenced to V )SSRating Symbol Value UnitDC Supply Voltage V – 0.5 to ..
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MC145443BDW
Single-Chip 300-Baud Modem
--The MC145442B and MC145443B silicon–gate CMOS single–chip low–
speed modems contain a complete frequency shift keying (FSK) modulator,
demodulator, and filter. These devices are compatible with CCITT V.21
(MC145442B) and Bell 103 (MC145443B) specifications. Both devices provide
full–duplex or half–duplex 300–baud data communication over a pair of
telephone lines. They also include a carrier detect circuit for the demodulator
section and a duplexer circuit for direct operation on a telephone line through a
simple transformer. MC145442B Compatible with CCITT V.21 MC145443B Compatible with Bell 103 Low–Band and High–Band Band–Pass Filters On–Chip Simplex, Half–Duplex, and Full–Duplex Operation Originate and Answer Mode Analog Loopback Configuration for Self Test Hybrid Network Function On–Chip Carrier Detect Circuit On–Chip Adjustable Transmit Level and CD Delay Timing On–Chip Crystal Oscillator (3.579 MHz) Single +5 V Power Supply Operation Internal Mid–Supply Generator Power–Down Mode Pin Compatible with MM74HC943 Capable of Driving –9 dBm into a 600 Ω Load
Order this document
by MC145442B/D-
SEMICONDUCTOR TECHNICAL DATA
