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 co ntrolled 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 red uce time-to-market for products
incorporating built-in voi ce 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 setti ng)
- 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 co nverter
- Sampling rate (fs): 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 u sin g 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 comman d
transfer) compressed a udio data.
Speaker
Serial interface
(SPI/UART/I2C)
Built-in voice flash
memory 512 KB
(approx. 4 mi ns)
Command controller
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) ROM SRAM
Voice decoder
Host
DA converter
SEIKO EPSON CORPORATION
S1V3S344
Development Tools
- Evaluation board
- Voice data creatio n tool *2
- Sample programs
[Voice data creation tool overview]
Step 1: Voice guidance registration Step 2: Pronunciation editing
Step 3: Phrase editing Step 4: ROM data producti on
Supported languages : English, Japanese, Korean (all female voices)
In planning stage : Spanish, Chinese
*1 The flash memory technology used in this product is used under license of Silicon Storage Technology, Inc. in the USA.
*2 The audio data creation tool uses PENTAX "VoiceText" voice synthesis technology. "VoiceText" is a registered trademark of
Voiceware Co., Ltd. Companies and product names included here are registered trademarks or trademarks.
Document Code: 411676800
First Issue March 2009 in JAPAN
D
©SEIKO EPSON CORPORATION 2009, All rights reserved.
Phone: +81-42-587-5313 FAX: +81-42-587+5116
