msm9841 Oki Semiconductor, msm9841 Datasheet - Page 5

• Manufacturer Part Number: msm9841
• Description: Recording And Playback Lsi With Built-in Fifo Msm9841record/playback Ic With Built-in Fifo Data Sheet
• Manufacturer: Oki Semiconductor

¡ Semiconductor
PIN DESCRIPTIONS
Symbol
AOUTL
AOUTR
RESET
SIOCK
TEST0
TEST1
MOUT
DGND
ADSD
DASD
AGND
LOUT
DV
AV
IOW
VCK
MIN
IOR
LIN
SG
XT
XT
DD
DD
Type
—
—
—
—
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
Write pulse input pin to write external memory data to MSM9841 during DMA transfer.
If DMA transfer is not used, set this pin to "H" level.
Read pulse input pin to read data of MSM9841 during DMA transfer.
If DMA transfer is not used, set this pin to "H" level.
16-bit serial data input pin when external ADC is used. If external ADC is not used,
set this pin to "L" level.
16-bit serial data output pin when external DAC is used.
Synchronizing clock for 16-bit serial data input/output when external ADC or DAC is used.
Oscillator connection pins. When external clock is used, input clock into XT pin and leave XT
pin open.
Outputs sampling frequency selected at recording or playback.
VCK pin is used as a synchronizing signal when external ADC or DAC is used.
When this pin is "L" level input, the LSI is initialized.
Pins for testing. Set the pins to "L".
Analog circuit signal ground output pin.
Inverting input pin for built-in OP amplifier. Noninverting input pin is connected to SG (Signal
Ground) internally.
MOUT is the output of internal OP amplifier to MIN, and LOUT is to LIN.
Left analog output pin from built-in LPF. This is the output pin of playback wavefroms, and is
connected to the amplifier for driving speakers.
Right analog output pin from built-in LPF. This is the output pin of playback wavefroms, and
is connected to the amplifier for driving speakers.
Digital power supply pin. Insert a minimum 0.1 mF bypass capacitor between this pin and
DGND pin.
Digital GND pin.
Analog power supply pin. Insert a minimum 0.1 mF bypass capacitor between this pin and
AGND pin.
Analog GND pin.
Description
FEDL9841-04
MSM9841
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