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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However, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltage. In addition, the modem supports remote telephone answering machine TAM and speakerphone. The country profiles may be altered or customized by modifying the country-dependent parameters.

The server must datasheet quick connect profiles. Country-dependent modem parameters for functions such as dialing, carrier transmit level, calling tone, call progress tone detection, answer tone detection, blacklisting, caller ID, and relay control are programmable.

cx Conexant Systems, Inc., cx Datasheet – Page 10

These files include WEB pages, graphics and image files, and document files. Full-duplex Receive and Transmit Mode. If carrier is lost datasgeet a time greater than specified by the S10 register, the datqsheet disconnects. This feature is available only with a connection datashheet a server supporting MOH.

Currents are positive when flowing into the device. The modem supports four low power modes: The modem continues to retrain until an acceptable connection is achieved, or until 30 seconds elapse resulting in line disconnect. Outputs transmit signal and impedance matching signal; connect to base of transistor Q Shaping includes both acoustic and line echo cancellation.

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Single-ended analog data input. CX Codec analog electrical characteristics are listed in Table Clock specifications are listed in Table The maximum, minimum, and default values can be defined to match specific country and DAA requirements. The modem returns to normal mode upon receiving an AT command or receiving a qualified ring.

CXZ – Conexant Systems, Inc. – |

In fax modem mode, the modem can operate in 2-wire, half-duplex, synchronous modes and can support Group 3 facsimile send and receive speeds of,and bps. Default parameters support U. This timer can be set to a value between 0 and seconds by using register S A value of 0 disables the inactivity timer. CXx Modem hardware interface signals are defined in Table The low power mode entered depends on the setting of the —SLP command.

An alternative method is to use communications software that makes use of the Conexant Modem-on-Hold drivers. Additional and modified country profiles are supported by internal SRAM.

Actions resulting from such failures can include specification of minimum inter-call delay, extended delay between calls, and maximum numbers of retries before the number is permanently forbidden “blacklisted”.

CX20548-11Z

An datsaheet or modified country profile can be loaded into internal SRAM. Voice Transmit Mode supports playback of voice or audio data to the telephone line.

A maximum of 48 kbps upstream rate is supported when connected to a V. Connect to DIB transformer primary winding terminal. This output can be optionally connected to a low-cost on-board speaker, e. The following are trademarks of Conexant Systems, Inc.: A serial EEPROM is required only if additional storage is required for more country profiles or customized firmware code.

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Place C near pin 1. Digitized audio data is converted to analog form then output to the TXA output. 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. Calculated voltage is applied to this output to control off-hook and DC VI mask operation.

Active low reset input. Connect to digital ground GND.

CX20548-11Z – Conexant Systems, Inc. – Iiic.Cc

If this occurs, retraining may be initiated to attempt recovery depending on the type of connection. Newport Beach, CA PCM upstream is disabled by default. The speakerphone algorithm allows position independent placement of microphone and speaker.

The CX Codec hardware interface signals are described in Table Low speed modulations such as BellA or V. DTR ON prepares the modem to be connected to the telephone line, and maintains the connection established by the DTE manual answering or internally automatic answering.

Speech received from the telephone line is shaped, converted to analog form, and output to the speaker or handset. CX Codec Current Requirements The modem can sense speeds of,,,,and bps and the following data formats: The host can separately control volume, muting, and AGC in microphone and speaker channels.