RP336D

53'53'DQG53' /RZ9ROWDJH9.IOH[™99ELV 0RGHP'DWD3XPSVIRU'HVNWRS$SSOLFDWLRQV Introduction The CONEXANT™ RP56D, RP336D, and RP144D Modem Data Pump (MDP) families support data/fax modem, voice coding/decoding, optional full-duplex speakerphone, and optional AudioSpan (Table 1). Low voltage and small size support desktop applications. Downloadable architecture allows upgrading of MDP code from the host/DTE. In V.90/K56flex mode (RP56), the MDP can receive data at speeds up to 56 kbps from a digitally connected V.90or K56flex-compatible central site modem. These MDPs take advantage of the PSTN which is primarily digital except for the client modem to central office local loop and are ideal for applications such as remote access to an Internet service provider (ISP), on-line service, or corporate site. The MDP can send upstream data at speeds up to V.34 rates. In V.34 data mode (RP56 and RC336), the MDP can connect at the highest data rate the channel can support from 33.6 kbps to 2400 bps with auto-fallback to V.32 bis. In V.32 bis mode, the MDP can connect at the highest data rate the channel can support from 14.4 kbps to 4800 bps with optional auto-fallback to lower rate modulations. Internal HDLC support eliminates the need for an external serial input/output (SIO) device in the DTE for products incorporating error correction and T.30 protocols. Voice mode includes an Adaptive Differential Pulse Code Modulation (ADPCM) voice coder and decoder (cod...