CX20493-58

The CX20493-58 is designed as one kind of full-featured, worldwide, controller-based modem that integrates modem controller (MCU), modem data pump (MDP), 256 KB ROM, 32 KB RAM, and SmartDAA system side device (SSD) functions onto a single die. This device can be used in (1)set top boxes; (2)gaming devices; (3)point of sale terminals; (4)remote monitoring and data collections systems; (5)handheld computers; (6)other embedded systems.

Features of the CX20493-58 are:(1)V.80 synchronous access mode supports host-controlled communication protocols with H.324 interface support;(2)Interfaces to optional external ROM/flash ROM, RAM, and/or optional serial EEPROM;(3)Data/Fax/Voice call discrimination;(4)Hardware-based modem controller;(5)Hardware-based digital signal processor (DSP);(6)Caller waiting detection;(7)Modem customization available through patch code that can be stored in optional serial EEPROM or internal SRAM;(8)2-bit and 4-bit Conexant ADPCM, 8-bit linear PCM, and 4-bit IMA coding;(9)Downloadable architecture;(10)Direct mode (serial DTE interface);(11)Automatic format/speed sensing;(12)Serial async/sync data; parallel async data.

The absolute maximum ratings of the CX20493-58 can be summarized as:(1)Supply Voltage: -0.5 to +4.0 VDC;(2)Input Voltage: -0.5 to +(VGG + 0.5) VDC;(3)Storage Temperature Range: -55 to +125 °C;(4)Analog Inputs: -0.3 to (VAA + 0.5) VDC;(5)DC Input Clamp Current: ±20 mA;(6)DC Output Clamp Current: ±20 mA;(7)Static Discharge Voltage (25°C): ±2500 VDC;(8)Latch-up Current (25°C): ±400 mA. If you want to know more information about it, please download the datasheet in www.seekic.com or www.chinaicmart.com .