MSM9831 View Datasheet(PDF) - Oki Electric Industry
Part Name
Description
Manufacturer
MSM9831 Datasheet PDF : 23 Pages
| |||
¡ Semiconductor
MSM9831-xxx
NOTES
1. Internal converter circuit
The MSM9831 has not employed a voltage output type D/A converter but a current output type
D/A converter. Therefore, the voice output circuit of the MSM9831 is different from that of the
MSM6650 family product which has employed a voltage output type D/A converter. The voice
output circuit of the MSM9831 also is different from that of the MSM9800 family product because
the MSM9831 has employed a current flowing-in type D/A converter and the MSM9800 family
product has employed a current flowing-out type D/A converter. (See the table below)
Product name
MSM6650 family
MSM9800 family
MSM9831
D/A converter circuit type
Voltage output type
Current output (flowing-out) type
Current output (flowing-in) type
D/A converter output circuit
—
P-MOS open drain
N-MOS open drain
Circuit connection between the MSM9831 and amplifier IC
Resistor for conversion from current to voltage
VDD
MSM9831
AOUT
D/A converter
AMP
GND
Current flowing direction
Circuit connection between the MSM9800 family product and amplifier IC
Current flowing direction
VDD
AOUT
D/A converter
AMP
MSM9800 family
GND
Resistor for conversion from current to voltage
2. Ceramic oscillator
A crystal that is usable in this LSI is described in "Functional Description" of this document. If
you want to use another crystal, it is recommended to evaluate the crystal before using it.
21/22
Share Link: 