S1V30345 Datasheet, PDF (1/2 Pages) Epson Company – Voice Guidance LSI

S1V30345/343/341
Voice Guidance LSI
„ Overview
The S1V3034x Series range of LSIs incorporates high-compression, high-quality audio decoding functions,
audio data ROM, and DA converters, make 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 from text data
without studio recording. Three audio data ROM sizes are available to suit specific needs. These LSIs allow
audio data to be transferred from a host when additional audio data is required. All functions are controlled
by commands via a serial interface for easy addition to any existing system incorporating a host. The
S1V3034x series offers pin compatibility^(*) with the S1V3S344 and S1V3G340, facilitating substitution to suit
system configurations.
The S1V3034x Series will help users reduce time-to-market for products incorporating built-in voice
guidance functions.
* S1V3S344 and S1V3G340 differs in external parts from S1V3034x series.
„ 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)
• Built-in audio data ROM
- The following areas are reserved internally for audio
data.
• S1V30345: 640 Kbytes (approx. 5 mins/16 kbps)
• S1V30343: 384 Kbytes (approx. 3 mins/16 kbps)
• S1V30341: 128 Kbytes (approx. 1 min/16 kbps)
• Host interface
- Synchronized serial interface (SPI), 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 or ceramic oscillator: 32.768 kHz or 12.288
MHz
• Package
- QFP-52pin (10 mm x 10 mm) 0.65 mm pin pitch
- QFP-48pin (7 mm x 7 mm) 0.5 mm pin pitch
• Power supply voltage
- 2.2 V to 5.5 V (Single power supply)
„ Standard application system
The S1V3034x Series standard application system is configured as shown in the diagram below.
The S1V3034x Series 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 S1V3034x
Series outputs voice audio while internally decoding and processing internal or streamed (via host
command transfer) compressed audio data.
Host
Clock or Oscillator
32.768kHz or 12.288MHz
Power supply voltage
2.2 V to 5.5 V
(single power supply)
Serial I/F
(SPI/UART/I2C)
Internal audio ROM
approx. 5 mins
(S1V30345)
approx. 3 mins
(S1V30343)
approx. 1 min
(S1V30341)
Command controller
Audio decoder
DA converter
SRAM ROM
Speaker
SEIKO EPSON CORPORATION