MSM9842 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM9842

Playback LSI with Built-in FIFO

Oki Electric Industry 

¡ Semiconductor

FEDL9842-02

MSM9842

PIN DESCRIPTIONS

Symbol

IOW

DASD

SOCK

XT

XT

VCK

RESET

TEST0

TEST1

TEST2

TEST3

TEST4

AOUTL

AOUTR

DVDD

DGND

AVDD

AGND

Type

Description

Signal to write external memory data to MSM9842 during DMA transfer.

I

If DMA transfer is not used, set this pin to "H" level.

O 16-bit serial data output pin when external DAC is used.

O Synchronizing clock for 16-bit serial data input when external DAC is used.

I Oscillator connection pins. When external clock is used, input clock into XT pin and leave XT

O pin open.

Outputs sampling frequency selected at playback. This sampling frequency is used as a

O

synchronizing signal when external DAC is used.

I When this pin is "L", the LSI is initialized.

I Pins for testing. Set the pins to "L".

I Pin for testing. Set the pin to "H".

O Pin for testing. Set the pin to "OPEN".

Left side output pin for built-in LPF. This is the output pin of playback wavefroms, and is

O

connected to the amplifier for driving speakers.

Right side output pin for built-in LPF. This is the output pin of playback wavefroms, and is

O

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.

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