DESCRIPTION

The RSLIC-CODEC chipset is comprised of one four-channel programmable PCM CODEC (IDT82V1074) and four single-channel ringing SLICs (IDT82V1671). The chipset provides a total solution for line card designs. In addition to providing a complete software programmable solution for BORSCHT, additional functions such as FSK generator, Universal Tone Detection (UTD) unit, tone generators, ringing generator, Integrated Test and Diagnosis Functions (ITDF), line polarity reversal and three-party conference are integrated in to the chipset. The high integration of system functions reduces board space requirements of the line card and saves cost

FEATURES

• Programmable DC feeding characteristics

• Programmable digital filters adapting to different requirements:

− Impedance matching

− Transhybrid balance

− Transmit and receive gain adjustment

− Frequency response correction

• Off-hook and ground-key detection

• AC/DC ring trip detection

• Programmable internal balanced ringing without external components

• Supports external ringing

• Selectable MPI and GCI interfaces

• Supports A/µ-law compressed and linear data formats

• Programmable IO pins with relay-driving or analog input capability

• Line polarity reversal

• Integrated FSK generator for sending Caller ID information

• On-hook transmission

• 2 programmable tone generators per channel

• Integrated Universal Tone Detection (UTD) unit for fax/modem tone detection

• Integrated Test and Diagnosis Functions (ITDF)

• Three-party conference

• Only battery and 3.3 V power supply needed

• Package available:

IDT82V1671: 28 pin PLCC IDT82V1074: 100 pin TQFP