RCV144ACF

The RCV144ACF is a kind of modem device which supports high speed data, high speed fax, AudioSpan, speakerphone, voice/audio, and voice view operation. It is intended for use with dial-up telephone lines in the US or world-wide. The device is pin compatible with the RCV336ACF/SP modem device family and allows design of a common C board providing data and fax modem, audispan, speakerphone, and audio/voice operation with handset, headset or speakerphone (microphone and speaker) with maximum data line rates from 14.4 kbps (RCV144ACF/SP) to 33.6 kbps (RCV336ACF/SP). The modem suports fax group 3 send and receive rates up to 14400 bps and supports T.30 protocol. The modem device is available in a 68-pin PLCC.

There are some features as follows: (1)audiospan (simultaneous audio/voice and data): ITU-T V.61 modulation (4.8 kbps data plus audio), ML144 modulation (4.8 to 9.6 kbps data plus audio), ML288 modulation (4.8 to 14.4 kbps data plus audio), audio/silence detection (ML144) and handset echo cancellation and handset, headset, or half-duplex speakerphone; (2)full-duplex speakerphone (FDSP) mode (option): acoustic and line echo cancellation, microphone gain and muting, speaker volume control and muting, room monitor; (3)vocie view alternating voice and data (option); (4)communication software compatible AT command sets; (5)world-class operation (option): call progress, blacklisting, multiple country support; (6)serial async data, parallel async data; (7)caller ID and distinctive ring detect; (8)single package: 68-pin PLCC.

The following is about the absolute maximum ratings: (1)supply voltage, VDD: -0.5 to 7.0 V; (2)input voltage, VIN: -0.5 to +5VD+0.5 V; (3)operating temperature range, TA: 0 to +70 ; (4)storage temperature range, TSTG: -55 to +125 ; (5)analog inputs, VIN: -0.3 to +5VA+0.3 V; (6)voltage applied to outputs in high impedance (off) state, VHZ: -0.5 to +5VD+0.5 V; (7)DC input clamp current, IIK: ±20 mA; (8)DC output clamp current, IOK: ±20 mA; (9)static discharge voltage (25), VESD: ±2500 V; (10)latch-up current (25), ITRIG: ±200 mA.