IS22C022P中文資料北京矽成數(shù)據(jù)手冊PDF規(guī)格書

GENERAL DESCRIPTION

IS22C022 is a high quality voice synthesizer capable of varying playback duration. A proprietary ADPCM algorithm 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.

FEATURES

? Minimum 20 second voice length at 6 KHz

? Versatile features for playback

? Combination of voice building blocks extends the duration of playback

? Voice data re-use saves memory space

? Four trigger pins, S1 to S4 for eight groups

? 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

? Built-in oscillator with variable sample rate

? Single external resistor to determine sample rate

? Built-in D/A converter, EPROM

? ADPCM data compression provides high sound quality

? Optional pop noise elimination function

? COUT pin drives speaker with a transistor

? VOUT1 and VOUT2 drives buzzer or speaker directly

? Auto-power down

? 2.4V-6V single power supply operation

? Low standby current (<5 μA at 3V)

? Development tools support