VOICE aP8942A 42sec APLUS INTEGRATED CIRCUITS INC. Sale

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aP8942PLUS MAKE YOUR PRODUCTION A-PLUS
VOICE aP8942A 42sec
APLUS
INTEGRATED CIRCUITS INC.
Sales E-mail:
Address: F-10, Sec. Chenggung Rd., Taipei, Taiwan 115, R.O.C. (115) TEL: 886-2-2782-9266 FAX: 886-2-2782-9255 WEBSITE http: //www.aplusinc.com.tw
sales@aplusinc.com.tw
Support E-mail:
service@aplusinc.com.tw
2009
FEATURES
Standard CMOS process. Embedded bits EPROM. Voice Length 6KHz sampling 4-bit ADPCM compression. Maximum voice groups. Combination voice blocks extend playback duration. table entries available voice block combinations. User selectable ADPCM data compression.
aP8942
triggering modes available (EPROM programmable options). Trigger Mode Combinations trigger Voice Groups; sequential trigger possible. Parallel Trigger Mode Combinations with goes HIGH strobe start voice playback.
Voice Group Trigger Options: Edge Level; Hold Un-hold; Retrigger Non-retrigger. Whole Chip Options: Ramp No-ramp; Output Options; trigger mode. 16ms 8KHz sampling rate) Debounce Time both Trigger Mode. HIGH stop playback once. user programmable outputs STOP pulse, BUSY signal flashing LED. Built-in oscillator control sampling frequency with external resistor. 2.6V 5.0V; Wide range single power supply stand-by current. Vout1 Vout2 drive speaker directly. COUT drive speaker through external BJT. Development System support voice compilation options selection.
DESCRIPTION
aP8942A high performance Voice fabricated with Standard CMOS process with embedded bits EPROM. store 42sec voice message with 4-bit ADPCM compression 6KHz sampling rate. 8-bit also available user selectable option. trigger modes, simple trigger mode Parallel trigger mode facilitate different user interface. User selectable triggering output signal options provide maximum flexibility various applications. Built-in resistor controlled oscillator, 8-bit current mode output direct speaker driving output minimize number external components. controlled programmer developing software available.
2009
CONFIGURATIONS
OUT1 VOUT1 VOUT2 OUT2 COUT
aP8942S7
Playback Mode OUT1 VOUT1 VOUT2 OUT2 COUT
Program Mode ACLK DCLK
Description Trigger (input with internal pull-down) Programmable output (I/O pin) output drive speaker directly output drive speaker directly Power Ground Programmable output (I/O pin) Power Supply programming current output Oscillator input Trigger (input with internal pull-down) Trigger (input with internal pull-down) Supply voltage programming Trigger (input with internal pull-down) Trigger (input with internal pull-down) Positive Power Supply Trigger (input with internal pull-down) Trigger (input with internal pull-down) Trigger (input with internal pull-down) Reset (input with internal pull-down) Trigger (input with internal pull-down)
2009
DESCRIPTIONS
Input Trigger Pins:
aP8942
used trigger Voice Groups Mode. together with used trigger Voice Groups Parallel Mode. Programming Mode, used program enable pins. Input Trigger Pin: Trigger Mode, this trigger trigger playback Voice Groups sequentially. Parallel Command Mode, this used address strobe latch input from starts voice playback. Programming Mode, this used signal. Power Supply normal programming operation Power Ground VOUT1 VOUT2 Digital output pins which drive speaker buzzer directly voice playback. During voice playback, external resistor connected between this sampling frequency. Programming Mode, this ACLK input signal. connection during voice playback. separate 6.5V power supply. OUT1 OUT2 Trigger Mode Parallel Command Mode, these pins user programmable pins STOP pulse, BUSY signals. During programming, OUT1 serves while OUT2 serves data COUT Analog 8-bit current mode output voice playback Chip reset playback mode DCLK programming mode. Programming Mode, this connected
2009
VOICE SECTION COMBINATIONS
aP8942
Voice files created base developing system stored built-in EPROM aP8942A chip number fixed length Voice Blocks. Voice Blocks then selected grouped into Voice Groups playback. Voice Groups allowed. Voice Block Table used store information combinations Voice Blocks then group them together form Voice Group. Chip Memory size Voice Block bytes Voice Block Max. Voice Group Voice Table entries Voice Length 6KHz 4-bit ADPCM) aP8942A bits
Example Voice Block Combination Assume here have three voice files, they "How You?", Sound Effect Music. Each voice file divided into number fixed length Voice Block stored into memory. Voice File "How You?" stored Voice Block B12. Voice File Sound Effect stored Voice Block B15. Voice File Music Voice Block B40. Voice Blocks grouped together using Voice Table form Voice Group playback: Group Group Group Group Group Voice Group contents "How You?" Sound Effect "How You?" "How You?" Music Music Voice Table Entries
Voice Data Compression
Voice File data stored on-chip EPROM either 4-bit ADPCM 8-bit format. Voice data stored 4-bit ADPCM provides data compression which save memory space. other hand, voice data stored 8-bit format means data compression employed voice playback quality will better.
2009
Programmable Options
aP8942
both Trigger Mode Parallel Trigger Mode, user select different trigger functions output signals sent from pins OUT1 OUT2. Options affect Voice Group playback called Whole Chip Options. Options only affect playback individual Voice Group called Group Options. Whole Chip Options Parallel Trigger Mode. Ramp-up-down enable disable: When COUT used playback, Ramp-up-down should enabled. This function
eliminates `POP' noise beginning voice playback. When VOUT1 VOUT2 used drive speaker directly, Ramp-up-down should disabled.
Fig. Ramp-up-down Enable
Fig.2 Ramp-up-down Disable
Output Options: This option sets three output pins OUT1 OUT2 send different signals during voice playback. Four settings allowed: OUT1 Option Option Option Option LED2 LED2 LED2 STOP OUT2 LED1 STOP BUSY BUSY
Note: Stop plus must enable order have STOP plus come out.
Fig.
Output waveforms
2009
Group Options
aP8942They are:
User selectable options that affect each individual group called Group Options. Edge Level trigger Unholdable Holdable trigger Re-triggerable non-retriggerable Stop pulse disable enable
Fig. Fig. show voice playback with different combination triggering mode relationship between outputs voice playback.
Fig.
Level, Unholdable, Non-retriggerable
Fig.
Level Holdable
Fig. sequential trigger with Level Holdable Unholdable
2009
aP8942
Fig. Edge, Unholdable, Non-retrigger
Fig. Edge, Holdable
Fig.
sequential trigger with Edge Holdable Unholdable
2009
Overlap trigger supported with Level/Unholdable trigger options:
aP8942
Fig.
Overlap trigger
2009
TRIGGER MODES
There triggering modes available with aP8942A.
aP8942
Trigger modes determined setting EPORM programmable options during voice data compilation. Trigger Mode With this trigger mode, Voice Groups triggered setting HIGH (not connected) different combinations. Each Voice Group have only independent trigger options (See Fig. trigger options definition). Voice Groups also triggered sequentially setting HIGH.
Parallel Trigger Mode this mode, HIGH according table above followed setting input HIGH, corresponding Voice Group will triggered. Trigger options defined Fig. valid this mode.
Fig.
Parallel Trigger Mode stead,
Note that cannot used Single Button Sequential trigger this mode. acts Strobe input clock-in data input from into chip.
2009
Trigger Mode Voice Groups triggered Voice Group 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
aP8942
HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH
HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH
2009
Trigger Mode
aP8942
Voice Groups triggered supplying address [S5:S1] with strobe signal. Voice Group
2009
BLOCK DIAGRAM
aP8942
ABSOLUTE MAXIMUM RATINGS
Symbol VOUT (Operating): (Junction) (Storage) Rating -0.5 Unit
0.3<VIN<VDD/33 <VOUT<VDD/33 +125 +125
2009
CHARACTERISTICS
4.5V,
aP8942
Symbol
Parameter
Operating Voltage Standby current Operating current Input Voltage Input Voltage VOUT Current VOUT high Current COUT Current high Current Current
Min.
-0.3
Typ.
-110
Max.
Unit
Condition
open open VDD=3.0V VDD=3.0V Vout=0.3V, VDD=5.0V Vout=2.5V, VDD=5.0V VCOUT=1.0V VOH=2.5V, VDD=5.0V VOL=0.3V, VDD=5.0V Fosc(5.0V) Fosc(4.0V)
Frequency Stability
Fosc(4.5V)
2009
CHARACTERISTICS Trigger Mode
S1~S8, COUT STOP BUSY
aP8942
4.5V, 8KHz sampling
tKDD
tSTPD
tSTPW
Parallel Mode
Addr. S1~S5
tASH
tASH tSBTW
2009
Parameter Min. Typ. Max.
aP8942Unit Note
trigger debounce time trigger debounce time retrigger
tKDD
tSTPD tSTPW tASH tSBTW tLEDC
Ramp time Ramp down time trigger delay after ramp down
STOP pulse output delay time STOP pulse width BUSY signal output delay time BUSY signal output hold time Address set-up hold time stroke pulse width flash frequency
128/Fs
256/Fs
Notes This parameter inversely proportional sampling frequency. This parameter proportional sampling frequency. sampling frequency
2009
OSCILLATOR RESISTANCE TABLE
Sampling Frequency ROSC ROSC
aP8942Sampling Frequency 10.3 11.9 13.8 16.5 19.3 20.5 22.4
Oscillator
Note: data above tables within accuracy measured 4.5V. frequency subjected variation.
FREQUENCY AGAINST STABILITY
10.0% 5.0% 0.0% -5.0% -10.0% -15.0% -20.0% -25.0% -30.0% 5.50 5.00 4.50 4.00 3.50 3.00 2.60
2009
TYPICAL APPLICATIONS
aP8942
0.1uF
4.7uF
0.1uF
Cout
1~2uF
Speaker
Rosc
COUT VOUT1 VOUT2 OUT1
8050D Speaker
4.5~5V
Fig. Using 4.5V Battery Note capacitors Cout must connected from pins stabilize power supply chip. When small capacity battery, e.g. AG10, used, Cout need large 22uF. However, Cout large, power-up reset generated 0.1uF function because takes longer time both Cout discharge. Note speaker will provide lauder better sound quality when VOUT speaker direct drive used. Note value base resistor should modified according different value, kind speaker transistor. Note should leave unconnected playback.
2009
BONDING PADS
aP8942
aP8942
Fig. Locations
Notes: should connected during voice playback. Substrate should connected Power GND.
2009

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