Voice length sampling seconds sampling seconds Silence compression sav

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Voice length sampling seconds sampling seconds Silence compression sav

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INSTANT VOICE
Voice length sampling seconds sampling seconds Silence compression save memory Eight trigger pins,TG1 sections play-all sequential play-all debounce time suitable interrupt stops playback once stop pulse generated playback BUSY signal control LEDs flash internal 3.0V single power supply operation standby current Auto-power down Built-in oscillator, converter, EPROM ADPCM data compression Optional noise elimination function COUT drives speaker with transistor Development tools support VOUT1 VOUT2 drives buzzer directly Sampling rate determined external resistor Holdable unholdable triggering option Industrial temperature available
API840N
JUNE 1999 GENERAL DESCRIPTION
API840N high-quality voice synthesizer with capacity seconds. proprietary ADPCM algorithm used. audio message stored 1024-Kbit on-chip EPROM. API840N eliminates need complicated circuitry voice playback (Figure still achieves high voice quality. Sounds such human speech, animal sounds, musical sounds, even special sound effects synthesized. Devices cascaded achieve longer voice duration (Figure devices configured parallel (Figure order achieve signal mixing without external mixer allowing speeches mixed with background music synthesis from different chips. instant programming nature API840N allows very short production turnaround time. There charges that usually required with conventional voice ROMs. Users apply voice synthesis function additional feature their products even when production volume relatively small. also ideal trial engineering prototyping. result, initial investment minimal risk product development phase reduced. API840N provides wide voltage operating range from 3.0V 6.0V. pair output pins, VOUT1 VOUT2 provide direct drive buzzer (Figure Voice quality from buzzer comparable speaker output power consumption much lower. current output pin, COUT, enables device drive speaker with cost transistor. complex filtering amplifier circuit needed. automatic ramp up/down function eliminates undesired noise playback. sections accessible through TG8.The trigger programmed playback sections sequentially from section interrupt (IRP) stop pulse (STP) BUSY signals provide handshaking with microprocessors other API840N devices. trigger pins give debounce time ideal applications Figure drivers available, flashing approximately intervals (Figure internal voltage compensation oscillator requires only external resistor. Different sampling frequencies determined external oscillator resistor value.
BLOCK DIAGRAM
OSCILLATOR ADDRESS SEQUENCER CLOCK GENERATOR
API840N
VOICE EPROM
CONTROL LOGIC NOISE REDUCTION DRIVER
ADPCM DECODER
LED2 LED1
COUT
BUZZER BUFFER
VOUT1 VOUT2
Programmable Options
API840N provides different control functions user specified applications. They include: Non-sequential Sequential Play-all Unholdable Holdable trigger STOP BUSY signal selection Automatic ramp-up/ramp-down ramp-up/ramp-down
Silence Compression
particular sound sequence includes periods silence, API840N will automatically compress silence save memory space. This compression will affect playback sound sequence.
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM TBIAS TSTG Parameter Terminal Voltage with Respect Temperature Under Bias Storage Temperature Value -0.5 +7.0 +125 Unit
Notes: Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS cause permanent damage device. This stress rating only functional operation device these other conditions above those indicated operational sections this specification implied. Exposure absolute maximum rating conditions extended periods affect reliability.
OPERATING RANGE
Range Ambient Temp. +70°C +85°C 3.0V 6.0V 3.0V 6.0V
Commercial Industrial
SECTION TRIGGERING
HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH
API840N
HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH Section
DESCRIPTIONS
Name
API840N
CONFIGURATION
Function Trigger Switch Internal Pull LOW, Active HIGH Drives First Flash Active Audio Signal Output Buzzer Compliment Audio Signal Output Buzzer Power Ground Generate Pulse Busy Signal After Voice Playback Drives Second Flash Active Current Output from Internal Speaker Playback Oscillator Resistor Control Sampling Frequency Trigger Switch Internal Pull LOW, Active HIGH Trigger Switch Internal Pull LOW, Active HIGH Program Power Supply, Connect When Voice Playback
20-Pin 300-mil PDIP
LED1 VOUT1 VOUT2 LED2 COUT
VOUT1 VOUT2 STP/BUSY
COUT
Trigger Switch Internal Pull LOW, Active HIGH Trigger Switch Internal Pull LOW, Active HIGH Positive Power Supply Trigger Switch Internal Pull LOW, Active HIGH Trigger Switch Internal Pull LOW, Active HIGH Sequential Trigger, Internal Pull LOW, Active HIGH Interrupt Stop Playback, Internal Pull LOW, Active HIGH Trigger Switch Internal Pull LOW, Active HIGH
Note: following pins used program data into memory chip: pins
BONDING DIAGRAM
(0,0) Note: Substrate must connected size
API840N
BONDING PARAMETERS
Name
LED1
3451.9 3451.9 3451.9 3451.9 3368.10 137.18 100.4 100.4 100.4 100.4 100.4 100.4 100.4 100.4 187.05 3372.5 3451.9 3451.9 3451.9 3451.94
1599.7 1861.0 2147.6 2444.5 2803.35 2795.93 2486.3 2245.0 1790.0 1469.5 1230.0 989.6 662.3 422.7 113.78 141.8 581.5 836.0 1090.6 1345.13
VOUT1 VOUT2
LED2
COUT
size:3628mm 3797mm
CHARACTERISTICS
Symbol ISTPH TSTPL ILED DF/F Parameter Description Operating Voltage Standby Current Operating Current Input HIGH Voltage Input Voltage VOUT Current VOUT HIGH Current COUT Current Current HIGH Current Output Current Frequency Stability 3.0V, Open 3.0V, Open 3.0V 3.0V 3.0V, VOUT 3.0V, VOUT 3.0V 3.0V, VCOUT 0.7V 3.0V, VSTP 3.0V, VSTP 3.0V 3.0V 6.0V FOSC(3V) OSC(3.5V) FOSC (3V) Condition Min. -0.3 Typ. Max. Unit
TIMING DIAGRAM PULSE TRIGGERED. Trigger shorter than phrase output
API840N
Trigger longer than phrase output
COUT
Phrase Phrase Phrase Phrase
LEVEL TRIGGERED Trigger shorter than phrase output
Trigger longer than phrase output
Phrase Phrase Phrase Phrase
COUT
SINGLE BUTTON TRIGGER, NON-SEQUENTIAL PLAY-ALL (SBT) Pulse Triggered
COUT
Phrase Phrase Phrase Phrase Phrase Phrase
Level Triggered
COUT
Phrase Phrase Phrase Phrase Phrase
SINGLE BUTTON TRIGGER, SEQUENTIAL (SBT) Pulse Triggered
COUT
Phrase Phrase Phrase Phrase
API840N
Phrase
Phrase
Level Triggered
COUT
Phrase Phrase Phrase Phrase Phrase Phrase
APPLICATION CIRCUITS
COUT
API840N
VOUT1 VOUT2
PIEZO BUZZER
ROSC
ROSC
Figure Typical Application with Speaker
Figure Typical Application with Piezo Buzzer
ROSC
ROSC
COUT
COUT
Figure Cascade Application
APPLICATION CIRCUITS
COUT
API840N
COUT
ROSC
ROSC
Figure Parallel Application (Mixing speeches speech with background music)
ROSC
COUT
LED2 LED1
Figure Application
APPLICATION CIRCUITS
ROSC COUT
API840N
ROSC
COUT
Figure Application Additional Trigger
Notes: following typical values: ROSC (NPN transistor) 130. 1/4W. Piezo buzzer resonant frequency KHz.

Voice length sampling seconds sampling seconds Silence compression sav

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