Integrated Circuits Inc. aP8921A/10A A PLUS MAKE YOUR PRODUCTION A-PLUS VOICE OTP IC aP8921A – 21sec aP8910A – 10sec 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. aP8921A/10A FEATURES • • • • • • • • Standard CMOS process. Embedded 512K/256K bits EPROM. 21/10 sec Voice Length at 6KHz sampling and 4-bit ADPCM compression. Maximum 12 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.
Integrated Circuits Inc. aP8921A/10A PIN DESCRIPTIONS S1 ~ S4 Input Trigger Pins: - S1 to S4 is used to trigger the 12 Voice Groups in both Key and CPU Parallel Trigger Mode. - In OTP Programming Mode, S1 to S4 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. - In CPU Parallel Command Mode, this pin is used as address strobe to latch the input from S1 to S4 and starts the voice playback.
Integrated Circuits Inc. aP8921A/10A VOICE SECTION COMBINATIONS Voice files created by the PC base developing system are stored in the built-in EPROM of the aP8921A/10A chip as a number of fixed length Voice Blocks. Voice Blocks are then selected and grouped into Voice Groups for playback. Up to 12 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.
Integrated Circuits Inc. aP8921A/10A 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. aP8921A/10A 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. aP8921A/10A Fig. 7 Edge, Unholdable, Non-retrigger Fig. 8 Fig. 9 Ver 2.
Integrated Circuits Inc. aP8921A/10A Overlap trigger is supported with Level/Unholdable trigger options: Fig. 10 Ver 2.
Integrated Circuits Inc. aP8921A/10A TRIGGER MODES Two trigger modes, the KEY and CPU modes, are available for aP8921A/10A series which are determined by setting the EPORM programmable options during voice data compilation. For both trigger modes, up to 12 Voice Groups are being played back according to the following setting of trigger pins S1 to S4.
Integrated Circuits Inc. aP8921A/10A CPU Parallel Trigger Mode In this mode, S1 to S4 are set to HIGH or LOW according to the table above and followed by setting the SBT input pin to HIGH, the corresponding Voice Group will be triggered. Trigger options defined in Fig. 4, 5, 7 and 8 are valid for this mode. Fig. 11 CPU Parallel Trigger Mode Note that SBT pin cannot be used as Single Button Sequential trigger in this mode. acts as a Strobe input to clock-in the data input from S1 to S4 into the chip.
Integrated Circuits Inc. aP8921A/10A 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 aP8921A/10A ( 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.
Integrated Circuits Inc. aP8921A/10A TIMING WAVEFORMS KEY Trigger Mode tKD S1~S4, SBT tSTPD COUT STOP tSTPW BUSY tBH tBD CPU Parallel Mode Addr. S1~S4 SBT tAH tAS tSBTW AC CHARACTERISTICS ( TA = 0 to 70℃, VDD = 4.5V, VSS = 0V, 8KHz sampling ) Min. Typ. Max.
Integrated Circuits Inc. aP8921A/10A 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. aP8921A/10A 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 VOUT1 16 Ω S3 VOUT2 Speaker S4 OUT1 390Ω 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. aP8921A/10A BONDING PADS aP8921A 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.