Integrated Circuits Inc. aP8942A A PLUS MAKE YOUR PRODUCTION A-PLUS VOICE OTP IC aP8942A – 42sec APLUS INTEGRATED CIRCUITS INC. Address: 3 F-10, No. 32, Sec. 1, Chenggung Rd., Taipei, Taiwan 115, R.O.C. Sales E-mail: sales@aplusinc.com.tw (115)台北市南港區成功路一段 32 號 3 樓之 10. TEL: 886-2-2782-9266 Ver 2.0 FAX: 886-2-2782-9255 Support E-mail: WEBSITE : http: //www.aplusinc.com.tw service@aplusinc.com.
Integrated Circuits Inc. aP8942A FEATURES • • • • • • • • Standard CMOS process. Embedded 1M bits EPROM. 42 sec Voice Length at 6KHz sampling and 4-bit ADPCM compression. Maximum 32 voice groups. Combination of voice blocks to extend playback duration. 960 table entries are available for voice block combinations. User selectable PCM or ADPCM data compression. Two triggering modes are available (EPROM programmable options).
Integrated Circuits Inc. aP8942A PIN CONFIGURATIONS S8 1 20 S7 OUT1 2 19 RST VOUT1 3 18 SBT VOUT2 4 17 S4 VSS 5 16 S3 OUT2 6 15 VDD V33 7 14 S2 COUT 8 13 S1 OSC 9 12 VPP 10 11 S6 S5 DIP / SOP PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Ver 2.
Integrated Circuits Inc. aP8942A PIN DESCRIPTIONS S1 ~ S8 Input Trigger Pins: - S1 to S8 are used to trigger the 32 Voice Groups in Key Mode. - S1 to S5 together with SBT are used to trigger the 32 Voice Groups in CPU Parallel Mode. - In OTP Programming Mode, S1 to S7 are used as program enable pins. SBT Input Trigger Pin: - In Key Trigger Mode, this pin is trigger pin to trigger the playback of Voice Groups one by one sequentially.
Integrated Circuits Inc. aP8942A VOICE SECTION COMBINATIONS Voice files created by the PC base developing system are stored in the built-in EPROM of the aP8942A chip as a number of fixed length Voice Blocks. Voice Blocks are then selected and grouped into Voice Groups for playback. Up to 32 Voice Groups are allowed. A Voice Block Table is used to store the information of combinations of Voice Blocks and then group them together to form Voice Group. Chip aP8942A Memory size 1M bits Max no.
Integrated Circuits Inc. aP8942A Programmable Options In both Key Trigger Mode and CPU Parallel Trigger Mode, user can select different trigger functions and output signals to be sent out from the pins OUT1 and OUT2. Options affect all Voice Group playback are called Whole Chip Options. Options only affect the playback of individual Voice Group are called Group Options. Whole Chip Options • • Key or CPU Parallel Trigger Mode.
Integrated Circuits Inc. aP8942A Group Options User selectable options that affect each individual group are called Group Options. • • • • They are: Edge or Level trigger Unholdable or Holdable trigger Re-triggerable or non-retriggerable Stop pulse disable or enable Fig. 4 to Fig. 9 show the voice playback with different combination of triggering mode and the relationship between outputs and voice playback. Fig. 4 Level, Unholdable, Non-retriggerable Fig. 5 Fig. 6 Ver 2.
Integrated Circuits Inc. aP8942A Fig. 7 Edge, Unholdable, Non-retrigger Fig. 8 Fig. 9 Ver 2.
Integrated Circuits Inc. aP8942A Overlap trigger is supported with Level/Unholdable trigger options: Fig. 10 Ver 2.
Integrated Circuits Inc. aP8942A TRIGGER MODES There are two triggering modes available with aP8942A. Key or CPU Trigger modes are determined by setting the EPORM programmable options during voice data compilation. Key Trigger Mode With this trigger mode, up to 32 Voice Groups are triggered by setting S1 to S8 to HIGH or NC (not connected) in different combinations. Each Voice Group can have its only independent trigger options (See Fig. 4, 5, 7 and 8 for trigger options definition).
Integrated Circuits Inc. aP8942A Key Trigger Mode Up to 32 Voice Groups can be triggered by S1 to S8.
Integrated Circuits Inc. aP8942A CPU Trigger Mode Up to 32 Voice Groups can be triggered by supplying address to [S5:S1] with SBT as strobe signal.
Integrated Circuits Inc. aP8942A BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol VDD - VSS Rating -0.5 ~ Unit +6 V VIN VSS - 0.3
Integrated Circuits Inc. DC CHARACTERISTICS Symbol Parameter aP8942A ( TA = 0 to 70℃, VDD = 4.5V, VSS = 0V ) Min. Typ. Max. Unit Condition VDD Operating Voltage 2.6 4.5 5.0 V ISB Standby current 1 5 μA I/O open IOP Operating current 15 mA I/O open VIH "H" Input Voltage 2.5 3.0 3.5 V VDD=3.0V VIL "L" Input Voltage -0.3 0 0.5 V VDD=3.0V IOL VOUT low O/P Current 110 mA Vout=0.3V, VDD=5.0V IOH VOUT high O/P Current -110 mA Vout=2.5V, VDD=5.
Integrated Circuits Inc. aP8942A TIMING WAVEFORMS KEY Trigger Mode tKD S1~S8, SBT tSTPD COUT STOP tSTPW BUSY tBH tBD CPU Parallel Mode Addr. S1~S5 SBT tAH tAS tSBTW AC CHARACTERISTICS ( TA = 0 to 70℃, VDD = 4.5V, VSS = 0V, 8KHz sampling ) Min. Typ. Max.
Integrated Circuits Inc. aP8942A OSCILLATOR RESISTANCE TABLE Sampling Frequency ROSC KΩ Sampling Frequency KHz ROSC KΩ 22 83 400 5.4 18 108 370 5.9 16 125 350 6.3 15 134 330 6.5 13 158 300 7.0 12 168 280 7.6 11 183 250 8.5 10 202 220 9.5 9 227 200 10.3 8 252 170 11.9 7 296 150 13.8 6 344 120 16.5 100 19.3 91 20.5 82 22.4 KHz Note: The data in the above tables are within 3% accuracy and measured at VDD = 4.5V.
Integrated Circuits Inc. aP8942A TYPICAL APPLICATIONS 0.1uF 0.1uF Cin 4.7uF VDD Rosc V33 RST Cout 8 ΩSpeaker 1~2uF OSC S1 4.5~5V 8050D COUT S2 S3 VOUT1 16 Ω VOUT2 Speaker 390Ω OUT1 S8 SBT VSS 1KΩ Fig. 12 Using 4.5V Battery Note 1: Two capacitors Cin and Cout must be connected from VDD and V33 pins to VSS to stabilize the power supply to the chip. When small capacity battery, e.g. AG10, is used, Cin and Cout may need to be as large as 22uF.
Integrated Circuits Inc. aP8942A BONDING PADS aP8942A Fig. 12 Pad Locations Notes: 1. VPP pad should be not connected during voice playback. 2. Substrate should be connected to the Power GND. Ver 2.
