MiTAC 8050QMA Manuel de service télécharger pdf (Page 20)

50QMA

N/B Maintenance

small outline packages (AC’97 interface on PCT303A and phone-line interface on PCT303W). The chip set

eliminates the need for an AFE, an isolation transformer, relays, opto-isolators, and 2-to 4-wire hybrid. The

PCT2303W chip set dramatically reduces the number of discrete components and cost required to achieve

compliance with international regulatory requirements. The PCT2303W complies with AC’97 Interface specification

Rev. 2.1.

The chip set is fully programmable to meet world-wide telephone line interface requirements including those

described by CTR21, NET4, JATE, FCC, and various country-specific PTT specifications. The programmable

parameters of the PCT2303W chip set include AC termination, DC termination, ringer impedance, and ringer

threshold. The PCT2303W chip set has been designed to meet stringent world-wide requirements for out-of-band

energy, billing-tone immunity, lightning surges, and safety requirements.

Features:

Virtual com port with a DTE throughout up to 460.8Kbps.

G3 Fax compatible

Auto dial and auto answer

Ring detection

• AC97 2.1 compliant

• 86dB dynamic range TX/RX paths

 Codec/DAA Features

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MiTAC 8050QMA Manuel de service Page 20