MT8940 Datasheet (Mitel Networks Corporation) - ISO-CMOS ST-BUS FAMILY T1/CEPT Digital Trunk PLL

MT8940, ISO-CMOS ST-BUS FAMILY T1/CEPT Digital Trunk PLL

The MT8940 is a dual digital phase-locked loop providing the timing and synchronization signals for the T1 or CEPT transmission links and the ST-BUS.

The ﬁrst PLL provides the T1 clock (1.544 MHz) synchronized to the input frame pulse at 8 kHz.

The timing signals for the CEPT transmission link and t

MT8940 Features

* Provides T1 clock at 1.544 MHz locked to input frame pulse Sources CEPT (30+2) Digital Trunk/ST-BUS clock and timing signals locked to internal or external 8 kHz signal TTL compatible logic inputs and outputs Uncommitted 2-input NAND gate Single 5 volt power supply Low power ISO-