MT8940
Description
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.
Key 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-CMOS technology ISSUE 8 March 1997
