|
Specifications |
Remarks |
| DSP |
TMS320C31-50 |
50 MHz Drive |
|
RAM |
128 kbyte x 4 |
128 kWord |
| ROM |
512 kBit |
64kbyte |
| AD Converter |
ADS7804 |
1 ch, 12 Bit, 100 ksps, ±
10 Vinput |
| DA Converter |
AD664 |
4 ch, 12 Bit, ± 10
V output |
| Analog MUX |
ADG508 |
8 ch analogue input |
| Serial
Communication |
8251 + MAX 232 |
38400 bps |
| Parallel
Communication |
EPP-mode
support |
160 kbyte/s |
| Digital I/O |
8255 |
24bit Digital I/O |
|
I/O Modules |
Each kind of analogue
Modules
20 2 Line Text LCD |
Audio I/O,
Function Generator, Amplitude Modulation and
Demodulation, Sensor input, and Back light LCD
Support |
| Line IN
Terminal |
Input from
cassette, CD and Sound card |
An inputted signal is so
amplified as to be input into ADC channel 0 |
| MIC IN
Terminal |
Capacitor
microphone input |
An inputted signal is so
amplified as to be input into ADC channel 1 and
the MIC OUT terminal |
| Speaker OUT
Terminal |
Speaker Drive |
8 Ohm 1W speaker is driven
by connecting the speaker to DAC channel 0 and
AMP IN. |
| AMP IN
Terminal |
Input directly
into AMP. |
Used in hearing the signal
from cassette, CD, soundcard by a speaker |
| AUX IN
Terminal |
Analog signal
input |
Connected with ADC channel
4 |
| AUX OUT
Terminal |
Analog signal
output |
Connected with DAC channel
3 |
Function
Generator
Module |
Sine wave,
Chopping wave, and square-wave |
Frequency: 8Hz ~ 37 kHz
variable Amplitude: 0 V ~ ± 10V
Variable Duty Rate: 40% ~ 60% |
Amplitude
Modulation /
Demodulation Module |
Independent
Amplitude
Modulation and Demodulation |
When DSP makes a
modulation, the module makes a demodulation
When DSP makes a demodulation, the module makes
a modulation |
| Sensor IN
Module |
Differential
input, single input |
Instrumentation Amplifier |
| Booting Method |
ROM, Parallel
Communication |
Booting using a 25 pin
printer cable. The downloading program is
basically stored. |
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