S1V3G340 Datasheet, PDF (1/2 Pages) Epson Company – Voice Guidance LSI

S1V3G340
Voice Guidance LSI
 Overview
The S1V3G340 is an LSI incorporating high-compression, high-quality audio decoding functions, external
SPI flash memory interface, 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. Use of external SPI flash memory allows easy interchanging of voice
data. Additional voice data can be transferred from a host when required. General-purpose output ports are
provided to allow flexible system design. All functions are controlled by commands via a serial interface for
easy addition to any existing system incorporating a host. The S1V3G340 offers pin compatibility with the
S1V3034x Series* facilitating substitution to suit system configurations.
The S1V3G340 will 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)
 External SPI flash memory interface
- Clock synchronized serial interface (SPI)
- Maximum approx. 128 mins (16 Mbytes)
 GPO
- 7 pins
 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-52 pin (10 mm  10 mm) 0.65 mm pin pitch
 Power supply voltage
- 2.2 V to 5.5 V (single power supply)
 Standard application system
The S1V3G340 standard application system is configured as shown in the diagram below. The S1V3G340
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 S1V3G340
outputs voice audio while internally decoding and processing internal or streamed (via host command
transfer) compressed audio data.
Host
Serial interface
(SPI/UART/I2C)
Command controller
GPO x 7
Clock or crystal oscillator
32.768 kHz or 12.288 MHz
Power supply voltage
2.2 V to 5.5 V
(single power supply)
Voice decoder
SRAM ROM
DA converter
SPI master I/F
Speaker
SPI
flash memory
SEIKO EPSON CORPORATION