S1V3S344 Datasheet, PDF (1/2 Pages) Epson Company – Voice Guidance LSI

S1V3S344
Voice Guidance LSI
 Overview
The S1V3S344 is an LSI incorporating built-in flash memory for voice data and featuring pin compatibility
with existing S1V3034x Series devices*. It features high-compression, high-quality audio decoding
functions, built-in voice data flash memory, and a DA converter, making it ideal for use in voice guidance
products. The voice data creation tool for EPSON voice guidance LSI allows easy creation of high-quality
voice data without the need for studio recording. All functions are controlled by commands via a serial
interface for easy addition to any existing system incorporating a host.
The S1V3S344 will help evaluate voice output and help users reduce time-to-market for products
incorporating built-in voice guidance functions.
* External parts differ from S1V3034x Series devices.
 Features
 Audio playback
- High-compression, high-quality audio decoder
(proprietary Epson data format)
- Bitrate: 40 kbps, 32 kbps, 24 kbps, 16 kbps
- Sampling rate: 16 kHz
 Sequencer function (phrase interval setting)
- Sequence setting for up to 64 phrases
(unlimited combinations)
- Variable phrase interval delay setting: 0 ms or 20 ms to
2,047 ms (in 1 ms steps)
 Voice data built-in flash memory^*1
- Incorporates the following memory for voice data
 512 kbytes (approx. 4 minutes/16 kbps)
 Erase/write cycles: 10,000 cycles (typ.)
1,000 cycles (min)
Data retention:
10 years (min)
 Host interface
- Clock synchronized serial interface,
supporting UART and I2C
- Command control
 High-quality 16-bit DA converter
- Sampling rate (f_s): 16 kHz
- Input bits: 16 bits
 Clock
- Clock input: 32.768 kHz or 12.288 MHz
- Crystal oscillator: 32.768 kHz
 Package
- QFP-52pin (10 mm  10 mm) 0.65 mm pin pitch
 Power supply voltage
- 5.0 V ±0.5 V (single power supply)
- 3.3 V ±0.3 V (single power supply)
 Standard application system
The S1V3S344 standard application system is configured as shown in the diagram below. The S1V3S344
is command-controlled by the host using a messaging protocol via the serial interface.
Controlled by commands sent from the host via the serial interface after power-on resetting, the S1V3S344
outputs voice audio while internally decoding and processing internal or streamed (via host command
transfer) compressed audio data.
Host
Clock
32.768 kHz or 12.288 MHz
Crystal oscillator
32.768 kHz
Power supply voltage
4.5 V to 5.5 V
3.0 V to 3.6 V
(single power supply)
Serial interface
(SPI/UART/I2C)
Command controller
Voice decoder
DA converter
Built-in voice flash
memory 512 KB
(approx. 4 mins)
SRAM ROM
Speaker
SEIKO EPSON CORPORATION