R96DFXL

The Rockwell R96DFXL MONOFAX modem is a synchronous 9600 bits per second (bps) half-duplex modem with error detection and DTMF reception. It has low power consumption and requires only a single +5VDC power supply. The modem is housed in a single VLSI device package. The modem can operate over the public switched telephone network (PSTN) through line terminations provided by a data access arrangement. The R96DFXL is designed for use in Group 3 facsimile machines. The modem satisfies the requirements specitied in CCl`ITrecommendations V.29, \L27 ter, V.21 channel 2, and T.4, and meets the binary signaling requirements ot T.30. The modem can operate at 9600, 7200, 4800, 2400, or 300 bps. and also includes the V.27 ter short training sequence option. The modem can also perform HDLC framing according to T.30 at 9600, 7200, 4800, 2400, or 300 bps. The modem features a programmable DTMF receiver and three programmable tone detectors which operate concurrently wlth the V.21 channel 2 receiver. The voice mode allows the host computer to efficiently transmit and receive audio signals and messages. The modem is available in either a 100-pin plastic quad flat pack (PQFP) or a 64-pin quad in-line package Figure 1 shows the modem in the PQFP package. The general modem interface is illustrated in Rgure 2. General purpose input/output (GPIO) and general purpose input (GPI) pins are available for host assignment in the 100-pin PQFP. The modem's small size, single voltage supply, and low power consumption allow the design of compact system enclosures for use in both office and home environments. Additional modem information is described in the 9600 bps MONOFAX Modem Designer's Guide and 9600 bps MONOFAX Modem Designer's Guide Addendum (Order No. 820 and 820A). The R96DFXL manufacturing number is R6657.

The features of R96DFXL can be summarized as (1)group 3 facsimile transmission/reception: CCITTV.29, V.27 ter, T.30, V.21 channel 2,T4; HDLC framing at all speeds; (2)V.27 ter short train; (3)concurrent DTM F, FSK, and tone reception; (4)voice mode transmission/reception; (5)half-duplex (2-Wire); (6)programmable maximum transmit level:0 dBm to -15 dBm; (7)programmable transmit analog altentuation: 0dB to 14 dB in 2 dBsteps; (8)receive dynamic range: 0 dBm to -43 dBm; (9)programmable dual tone generation; (10)programmable tone detection; (11)programmable turn-on and turn-off thresholds; (12)programmable interface memory interrupt; (13)diagnostic capability: allows telephone line quality monitoring; (14)equalizatlon: automatic adaptive equalizer; fixed digital compromise equalizer; (15)DTE interface: two alternate ports: selectable microprocessor bus (6500 or 8085); CCITT V.24 (EIA-232-D compatible) interface ; (16)and CMOS compatible; (17)low power consumption: 250 mW (typical); (18)single package:100-pin PQFP; 64-pin QUIP; (19)single +5VDC power supply; (20)software compatible with R96MFX, R96EFX, R96DFX, and R96VFX modems.

The absolute maximum ratings of  R96DFXL are (1)operating temperature:0°C to 70°C; (2)storage temperature: -55°C to 125°C; (3)relative humidity: up to 90% noncondensing, or a wet bulb temperature up to 35°C, whichever is less.