LPM11162 Datasheet, PDF (1/19 Pages) List of Unclassifed Manufacturers – Audio Module

LPM11162 Audio Module
www.lpelettronica.it
Firmware version.2.1R
Doc. Rev.0 (04/12/10)
Features
Description
•
Separate Analog/Digital Supplies for optimmum
performance
•
Typical 3.3V Supply Voltage
•
Non-volatile audio storage
•
Internal Flash Filesystem to store wave files
•
95 seconds of audio recording
•
11.025KHz sample rate
•
High quality voice/sounds reproduction
•
UART interface for programming/playback (SERIAL-
MODE)
•
Input PIN reading for playback (KEY-MODE)
•
Analog audio output for playback
•
5KHz audio bandwidth
•
Small footprint device (20x28mm)
•
Low power consumption
•
Applications: automatic distributors, robots, industrial
controllers, entertainment, gadgets
LPM11162 is a simple integrated solution to store and reproduce high quality audio wave files in electronic circuits.
Typical applications are automatic distributors, robots, speaking devices, gadgets and in general all the devices
where it is required to program and play audio wave files.
The audio files (11KHz – 16bit) can be programmed in the internal 2Mbyte flash memory that is provided with an
advanced filesystem. Programming is done on the UART port using simple filesystem commands. The baudrate for
communication is programmable with the AutoBaudrate feature (up to 115200 bps).
The audio files can be reproduced on the analog ouput using the playback commands (SERIAL-MODE) or driving
some input PIN (pressing keys , driving relè or transistors, ecc).
Typical Application
DVCC-3.3V
DVCC-3.3V
DVCC
AVCC-3.3V
AVCC
M icr ocontroller
UART-TX
UART-RX
IN
OUT
DGND
4.7uF
100nF
DGND DGND
LPM 11162
UART-RX
UART-TX
/BUSY
/RESET
AUDIO-OUT
DGND
AGND
100nF
4.7uF
AGND AGND
100nF
AMP
AGND
Figure 1 – Typical Application schematic