Datasheet > APL8208A

APL8208A

更新时间： 2024-02-01 02:22:57

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
10页	201K
描述
VERSATILE 20 SEC INSTANT VOICE ROM

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中文翻译

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数据手册

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APL8208A 数据手册

APLUS

API8208A

VERSATILE 20 SEC INSTANT

VOICE ROM

FEATURES

GENERALDESCRIPTION

• Minimum 20 second voice length at 6 KHz

• Versatile features for playback

API8208A is a high quality voice synthesizer capable of

varyingplaybackduration. AproprietaryADPCMalgorithm

is used. The audio message is stored in a 512K bits

on-chip EPROM which can store up to 20 seconds of

voice data at 6 KHz sample rate.

• Combination of voice building blocks

extends the duration of playback

• Voice data re-use saves memory space

TheAPI8208Aeliminatestheneedofcomplicatedcircuitry

in voice playback but still achieves high voice quality.

Sounds such as human speech, animal sounds, musical

soundsandevenspecialsoundeffectscanbesynthesized.

Versatilecombinationsinsectionsachievelongerplayback

duration. In addition, devices can be cascaded to achieve

longer voice duration. Two devices can be configured in

parallel in order to achieve signal mixing without an

external mixer in which speech can be mixed with

background music each from one of two different chips.

4 for eight groups

• Four trigger pins, TG1 to TG

• SBT for sequential play-all or random play

• Holdable and unholdable, edge and level

triggering option

• 15 ms debounce time suitable for CDS

• IRP interrupt pin for master reset

• Three programmable output pins for STP Stop

Pulse, BUSY Signal, and LED

The API8208A provides wide operating voltage range

from 3.0V to 6.0V. PWM digital amplifier output pins,

V^OUT1 and V^OUT2 provides direct drive to buzzer or

speaker.

• Built-in oscillator with variable sample rate

• Single external resistor to determine sample rate

• Built-in D/A converter, EPROM

A current output pin, C^OUT, enables the device to drive a

speaker through a low cost NPN transistor. No complex

filtering or amplifier circuit is needed. An automatic

ramp-down function eliminates undesired noise at the end

of playback.

• ADPCM data compression provides high sound

quality

• Optional pop noise elimination function

• COUT pin drives speaker with a transistor

Group of sections

The voice data memory area of the API8208A can be

subdivided into 126 sections. Any combination of these

sections will form an individual group for data playback. A

maximum of eight groups are available with activation

• VOUT1 and VOUT2 drives buzzer or speaker di-

rectly

• Auto-power down

controlled by

TG1 toTG4 pins. The SBT pin can be used to

trigger multiple groups playback in sequence.

• 3.0V-6V single power supply operation

• Low standby current (<5 µ

)

A at 3V

• Development tools support

11/15/99

12 3 4 5 6 7...10

中文翻译

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