Product Summary

The MT8924AS PCM Conference Circuit (PCC) is designed to provide conference call capability in digital switching systems. It allows up to 10 independent conferences to be set for up to 32 PCM voice channels. A/m-Law companded data from the PCM input port is converted to linear format, processed by a dedicated arithmetic unit, re-converted to companded format and then sent to the PCM output port.The PCM output signal contains all the information of each channel connected in conference except its own.The MT8924AS is ideal for: (1)Digital PBX / KTS; (2)Conference bridges; (3)Digital C.O. switches.

Parametrics

MT8924AS absolute maximum ratings: (1)Supply Voltage, VDD - VSS: - 0.3 to 7 V; (2)Voltage on any I/O pin, VI/O VSS: - 0.3 VDD to + 0.3 V; (3)Current on any I/O pin, II/O: ± 10 mA; (4)Storage Temperature, TST: - 65 to + 150℃; (5)Power Dissipation (plastic package), PD: 500 mW.

Features

MT8924AS features: (1)Supports up to 10 independent conferences for up to 32 PCM Voice Channels; (2)ST-BUS compatible 2.048 Mb/s PCM Serial Interface (also supports 1.536 Mb/s and 1.544 Mb/s data rates); (3)Per channel digital gain control (0/-3/-6 dB); (4)Parallel microprocessor port for device control; (5)Programmable noise suppression; (6)External Tone Input; (7)Pin selectable A/m-Law format; (8)Low power CMOS technology; (9)Available in 24 Pin PDIP and SOIC packages.

Diagrams

MT8924AS circuit diagram

MT8910-1
MT8910-1

Other


Data Sheet

Negotiable 
MT8920B
MT8920B

Other


Data Sheet

Negotiable 
MT8920BE
MT8920BE

Other


Data Sheet

Negotiable 
MT8924
MT8924

Other


Data Sheet

Negotiable 
MT8924AE
MT8924AE

Other


Data Sheet

Negotiable 
MT8926
MT8926

Other


Data Sheet

Negotiable