API8208A, API840N, API8821 Selling Leads, Datasheet
MFG:APLUS Package Cooled:0243/0317 D/C:8
API8208A, API840N, API8821 Datasheet download
Part Number: API8208A
MFG: APLUS
Package Cooled: 0243/0317
D/C: 8
API8208A, API840N, API8821
- Table of contents:
Info of API8208A
Info of API840N
Info of API8821
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About API8208A
PDF/DataSheet Download
Datasheet: API8208A
File Size: 179114 KB
Manufacturer: APLUS [Apuls Intergrated Circuits]
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About API840N
PDF/DataSheet Download
Datasheet: API840N
File Size: 291125 KB
Manufacturer: APLUS [Apuls Intergrated Circuits]
Download : Click here to Download
About API4000-6
PDF/DataSheet Download
Datasheet: API4000-6
File Size: 255391 KB
Manufacturer: APLUS [Apuls Intergrated Circuits]
Download : Click here to Download
API8208A General Description
API8208A is a high quality voice synthesizer capable of arying 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.
The API8208A eliminates the need of complicated circuitry in voice playback but still achieves high voice quality. Sounds such as human speech, animal sounds, musical sounds and even special sound effects can be synthesized.Versatile combinations in sections achieve longer playback 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. The API8208A provides wide operating voltage range from 3.0V to 6.0V. PWM digital amplifier output pins, VOUT1 and V OUT2 provides direct drive to buzzer or speaker.
The API8208A provides wide operating voltage ranget from 3.0V to 6.0V. PWM digital amplifier output pins VOUT1 and V OUT2 provides direct drive to buzzer or speaker.
A current output pin, COUT, enables the device to drive a speaker through a low cost NPN transistor. No complex filtering or amplifier circuit is needed. An automaticramp-down function eliminates undesired noise at the end of playback..com
API8208A Maximum Ratings
| Symbol | Parameter | Value | Unit |
| VCC - GND | Terminal Voltage with Respect to GND | -0.5 to +7.0 | V |
| VIN | GND -0.3 < V IN < VCC + 0.3 | V | |
| VOUT | GND < VOUT < VCC | V | |
| TA | Operating Temperature | -10 to +85 | °C |
| TSTG | Storage Temperature | -55 to +125 | °C |
API8208A Features
• Minimum 20 second voice length at 6 KHz
• Versatile features for playback
• C ombination of voice building blocks extends the duration of playback
• V oice data re-use saves memory space
• Four trigger pins, TG1 to TG4 for eight groups
• SBT for sequential play-all or random play
• Holdable and unholdable, edge and levle triggering option
• 15 ms debounce time suitable for CDS
• I RP interrupt pin for master reste
• Three programmable output pins for STP StopPulse, BUSY Signal, and LED
• Built-in oscillator with variable sample raet
• S ingle external resistor to determine sample raet
• Built-in D/A converter, EPROM
• ADPCM data compression quality provides high sound
• O ptional pop noise elimination function
•COUT pin drives speaker with a transistor
• VOUT1 and V OUT2 drives buzzer or speaker directly
• Auto-power down
• 3.0V-6V single power supply operation
• Low standby current (<5 A at 3)V
• Development tools suppotr
API840N General Description
API840N is a high-quality voice synthesizer with a capacity of 32 to 40 seconds. A proprietary ADPCM algorithm is used. The audio message is stored in a 1024-Kbit on-chip EPROM.
The API840N eliminates the need of complicated circuitry in voice playback (Figure 1) but still achieves high voice quality. Sounds such as human speech, animal sounds, musical sounds, and even special sound effects can be synthesized. Devices can be cascaded to achieve longer voice duration (Figure 3). Two devices can be configured in parallel (Figure 4) in order to achieve signal mixing without an external mixer allowing speeches to be mixed with background music synthesis from two different chips.
The instant programming nature of the API840N allows a very short production turnaround time. There are no NRE charges that are usually required with conventional voice ROMs. Users now can apply a voice synthesis function as an additional feature to their products even when production volume is relatively small. It is also ideal for trial or engineering prototyping. As a result, the initial investment is minimal and the risk in the product development phase is reduced.
The API840N provides a wide voltage operating range from 3.0V to 6.0V. A pair of PWM output pins, VOUT1 and VOUT2 provide direct drive to a buzzer (Figure 2). Voice quality from a buzzer is comparable to speaker output and power consumption is much lower.
A current output pin, COUT, enables the device to drive a speaker with a low cost NPN transistor. No complex filtering or amplifier circuit is needed. An automatic ramp up/down function eliminates the undesired noise at the end of playback.
Up to 32 sections are accessible through TG1 to TG8.The SBT trigger pin can be programmed to playback all 32 sections or sequentially from section 1 to 32. An interrupt pin (IRP) and stop pulse (STP) or BUSY signals provide handshaking with microprocessors or other API840N devices. All trigger pins give 15 ms debounce time and is ideal for CDS applications as in Figure 6. Two LED drivers are available, flashing on and off at approximately 3Hz intervals (Figure 5). The internal voltage compensation oscillator requires only one external resistor. Different sampling frequencies are determined by the external oscillator resistor value.
The API840N eliminates the need of complicated circuitry in voice playback (Figure 1) but still achieves high voice quality. Sounds such as human speech, animal sounds, musical sounds, and even special sound effects can be synthesized. Devices can be cascaded to achieve longer voice duration (Figure 3). Two devices can be configured in parallel (Figure 4) in order to achieve signal mixing without an external mixer allowing speeches to be mixed with background music synthesis from two different chips.
The instant programming nature of the API840N allows a very short production turnaround time. There are no NRE charges that are usually required with conventional voice ROMs. Users now can apply a voice synthesis function as an additional feature to their products even when production volume is relatively small. It is also ideal for trial or engineering prototyping. As a result, the initial investment is minimal and the risk in the product development phase is reduced.
The API840N provides a wide voltage operating range from 3.0V to 6.0V. A pair of PWM output pins, VOUT1 and VOUT2 provide direct drive to a buzzer (Figure 2). Voice quality from a buzzer is comparable to speaker output and power consumption is much lower.
A current output pin, COUT, enables the device to drive a speaker with a low cost NPN transistor. No complex filtering or amplifier circuit is needed. An automatic ramp up/down function eliminates the undesired noise at the end of playback.
Up to 32 sections are accessible through TG1 to TG8.The SBT trigger pin can be programmed to playback all 32 sections or sequentially from section 1 to 32. An interrupt pin (IRP) and stop pulse (STP) or BUSY signals provide handshaking with microprocessors or other API840N devices. All trigger pins give 15 ms debounce time and is ideal for CDS applications as in Figure 6. Two LED drivers are available, flashing on and off at approximately 3Hz intervals (Figure 5). The internal voltage compensation oscillator requires only one external resistor. Different sampling frequencies are determined by the external oscillator resistor value.
API840N Maximum Ratings
| Symbol | Parameter | Value | Unit |
| VTERM | Terminal Voltage with Respect to GND | -0.5 to +7.0 | V |
| TBIAS | Temperature Under Bias | -40 to +85 | °C |
| TSTG | Storage Temperature | -55 to +125 | °C |
API840N Features
* Voice length at
- 8 KHz sampling is 32 seconds
- 6 KHz sampling is 40 seconds
* Silence compression to save memory
* Eight trigger pins,TG1 to TG8 for 32 sections
* SBT pin play-all or sequential play-all
* 15 ms debounce time suitable for CDS
* IRP interrupt pin stops playback at once
* STP stop pulse generated at end of playback
* BUSY signal for CPU control
* Two LEDs flash at 3 Hz internal
* 3.0V to 6V single power supply operation
* Low standby current (<5 mA at 3V)
* Auto-power down
* Built-in oscillator, D/A converter, EPROM
* ADPCM data compression
* Optional pop noise elimination function
* COUT pin drives speaker with a transistor
* Development tools support
* VOUT1 and VOUT2 drives buzzer directly
* Sampling rate determined by external resistor
* Holdable and unholdable triggering option
* Industrial temperature available
- 8 KHz sampling is 32 seconds
- 6 KHz sampling is 40 seconds
* Silence compression to save memory
* Eight trigger pins,TG1 to TG8 for 32 sections
* SBT pin play-all or sequential play-all
* 15 ms debounce time suitable for CDS
* IRP interrupt pin stops playback at once
* STP stop pulse generated at end of playback
* BUSY signal for CPU control
* Two LEDs flash at 3 Hz internal
* 3.0V to 6V single power supply operation
* Low standby current (<5 mA at 3V)
* Auto-power down
* Built-in oscillator, D/A converter, EPROM
* ADPCM data compression
* Optional pop noise elimination function
* COUT pin drives speaker with a transistor
* Development tools support
* VOUT1 and VOUT2 drives buzzer directly
* Sampling rate determined by external resistor
* Holdable and unholdable triggering option
* Industrial temperature available
API840N Connection Diagram
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