RSC-4x RPM
Data Sheet
4
P/N 80-0291-B
© 2006 Sensory Inc.
General Purpose I/O
Bidirectional: The RSC-4x RPM has 24 general purpose I/O pins. Each line can be programmed as an input with
a weak pull-up resistor, input with a strong pull-up resistor, input without pull-ups, or as an output. For more
details, refer to the RSC-4128 Datasheet (80-0206).
Microphone Ports
Input: The RSC-4x RPM is designed so that you can use the on-board 1.2K microphone source resistor or
external custom microphone source resistor. Use the on-board microphone resistor if the microphone sensitivity
provides -49dB system gain with 1.2K. Use the external microphone source resistor otherwise. For more
information on microphones, refer to Design Note - Selecting a Microphone (80-0259).
NOTE: Sleep Current is 100uA (typ.) with a microphone.
Speaker Output (PWM0, PWM1)
Output: PWM ports can be directly connected to the speaker.
DAC Output
Output: An optional DAC output for the speaker is provided. To use DAC output, you need to provide the
external audio amplifier.
RSC-4x RPM Schematic
Refer to: RSC-4x RPM Schematic (70-0068).
Developing RSC-4x RPM Applications
What you can develop with the RSC-4x RPM:
Speaker Independent Recognition
Speaker Dependent Recognition
Speaker Verification
Record and Playback
Speech with SXL compression
Sample Programs
Sample programs in the FluentChip™ Technology Library are a great place to start. Please refer to the Module
Programmer Board Manual (80-0294) for the complete list of supported samples.
Creating SI Recognition Sets and Speech Files
For creating Speaker Independent recognition sets, use “Quick T2SI™ (Pat. Pending)”
For creating speech files, use “QuickSynthesis™ 4”