CX20548 DATASHEET PDF

Buy CXZ/H20 with extended same day shipping times. View datasheets , stock and pricing, or find other Modem Modules. CXZ Specifications: Device Type: Modem ; Supply Voltage: V ; Data Rate: 2 kbps Details, datasheet, quote on part number: CXZ. Case/Package, LCC. Data Rate, Kbps. Mount, Surface Mount. Operating Supply Voltage, V. Compliance. RoHS: Compliant. Datasheets. Conexant.

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No Connect NC Notes: Contact your local Conexant sales office for additional country support.

The CX current and power requirements are listed in Table Conexant strives to produce quality documentation and welcomes your feedback. Speakerphone Mode Optional When using the optional CX Codec, the modem includes additional telephone handset, external microphone, and external speaker interfaces which support voice and full-duplex speakerphone FDSP operation.

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Leave open if not used. Receiver operational amplifier inverting input. Third-party brands and names are the property of their respective owners. This timer can be set to a value between 0 and seconds by using register S After dialing, modem datxsheet is controlled by fax commands. Conexant assumes no responsibility for errors or omissions in these materials.

USB V.92/V.34/V.32bis Controllered Modem With CX20548 SmartDAA®

The dictionary is dynamically updated during normal operation. A maximum of 48 datwsheet upstream rate is supported with PCM upstream enabled, in contrast to a maximum of Connect to emitter of transistor Q Oa Electronic Inductor Output.

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Clock specifications are listed in Table Use a short path and a wide trace to AGND pin. The CX Codec hardware interface signals are described in Table The pin QFN package dimensions are shown in Figure The punch-style package is shown in Figureand the sawn-style package is shown in Figure The CXx has a serial interface and codec interface for connection to the optional CX Codec for speakerphone applications.

This feature can be used to quickly drop a modem connection in the event when a user picks up an extension phone line. Conexant advises all customers to ensure that they have the latest version of this document and to verify, before placing orders, that information being relied on is current and complete. Active low input asserted to power down the CX Codec. This mode can fallback datashwet V.

Using modem modulations to optimize modem configuration for line conditions, the modem can connect at the highest data rate that the channel can support from 56 kbps down to bps with automatic fallback. The CXx current and power requirements are listed in Table The improved performance amount varies both with the actual format and with the content of individual pages and files. In normal or error-correction mode, this datzsheet timer is reset when data is received from either the DTE or from the line.

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The low power mode entered depends eatasheet the setting of the —SLP command. Position these capacitors very close to the VREF pin. Request additional vx20548 profiles from a Conexant Sales Office. CX Codec analog electrical characteristics are listed in Table Therefore, all inputs should be connected to an appropriate supply voltage.

Voice Transmit Mode supports playback of voice or audio data to the telephone line. This output can be optionally connected to a low-cost on-board speaker, e.

The data connection resumes upon incoming call termination.

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All voltages referenced to ground VSS. MOH can be executed through either of two methods: Frequency and cadence of tones for busy, ringback, congested, warble, dial tone 1, and dial tone 2. Answer tone detection period. Voice-call-first VCF before switching to a videophone call is dattasheet supported. CXx Current and Power Requirements Consult applicable reference design for exact component placement and values, and for layout guidelines.