VR Stamp
With Serial EEPROM
Speech Recognition Module
Data Sheet
2006 Sensory Inc.
P/N 80-0274-E
1
Description
Sensory’s VR Stamp simplifies the design of
speech recognition products by integrating all key
components into a convenient 40-pin DIP footprint
module. A low-noise audio channel and standardized
footprint allow rapid prototyping, less debugging and
shorter time to market.
Using the VR Stamp Toolkit, application programs
can be downloaded into the VR Stamp. The VR
Stamp can then be removed from the Module
Programmer Board and plugged directly into the final
product. In-circuit reprogramming is also supported.
The VR Stamp offers 24 I/O lines, as well as
connections for a power, ground, microphone,
speaker, and logic-level RS232 interface.
Features
FluentChip Capabilities
Noise-robust Speaker Independent (SI) and
Speaker Dependent (SD) recognition
Many language models now available for
international use
High quality, 2.4-7.8 kbps speech synthesis &
sound effects with Sensory "SX" synthesis
technology
Speaker Verification Word Spot (SVWS) -
Noise robust voice biometric security
8 voice MIDI-compatible music synthesis
Audio Wakeup from sleep
Touch Tone (DTMF) output
Integrated Solution
RSC-4128 Speech processor & 1Mbit Flash
128Kb serial EEPROM for data
14MHz (main) & 32kHz (time keeping) clocks
24 I/O lines
Microphone preamplifier
Pulse Width Modulator (PWM) for Speaker
and optional DAC output
Low Power Requirements
V
DD
= 2.70V – 3.6V
I
ACT
= 26mA @ 3V (typ. for complete module)
I
SLEEP
= <20uA @ 3V (typ. for complete
module)
VR Stamp Block Diagram
VR Stamp
POWER
1Mb
Flash
128Kb Serial
EEPROM
Speaker
(PWM)
Optional
DAC Output
IO Ports
Serial Com
MIC
Program/
Run
VR STAMP IC