PCD3310 Overview
Key Features
- On-chip voltage reference for supply and temperature independent tone output
- On-chip filtering for low output distortion (CEPT compatible)
- On-chip oscillator uses low-cost 3.58 MHz (TV colour burst) crystal or piezo resonator
- Uses standard single-contact or double-contact (common left open) keyboard
- Keyboard entries fully debounced
- Flash (register recall) output. 2 GENERAL DESCRIPTION
- Pulse, DTMF and ‘mixed mode’ dialling
- Mixed mode dialling: start with pulse dial, end with DTMF dial (e.g. for control of DTMF user equipment via a pulse network)
- 23-digit memory stores last number dialled, or numbe
