Rainbow Electronics aP89010 User Manual

Integrated Circuits Inc. aP89021/010

APLUS MAKE YOUR PRODUCTION A-PLUS

VOICE OTP IC

aP89021 – 21sec
aP89010 – 10sec

APLUS INTEGRATED CIRCUITS INC.

Address:

3 F-10, No. 32, Sec. 1, Chenggung Rd., Taipei,
Taiwan 115, R.O.C.

(115)台北市南港區成功路一段 32 號 3樓之 10.

TEL: [phone]
FAX: [phone]

WEBSITE : http: //www.aplusinc.com.tw

Sales E-mail:

[e-mail]

Technology E-mail:

[e-mail]

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Integrated Circuits Inc. aP89021/010

FEATURES

l Standard CMOS process.
l Embedded 512K/256K bits EPROM.
l 21/10 Sec Voice Length at 6 KHz sampling and 4-bit ADPCM compression.
l Maximum 12 voice groups.
l Combination of voice building blocks to extend playback duration.
l 960 table entries are available for voice block combinations.
l User selectable PCM or ADPCM data compress.
l Two triggering modes are available by whole chip option during voice compilation.

- Key Trigger Mode – Combinations of S1 ~ S4 to trigger up to 12 voice groups; SBT

for sequential trigger.

- CPU Parallel Trigger Mode – Combinations of S1 ~S4 with SBT goes HIGH to strobe

start the voice playback.

l Voice Group Trigger Options: Edge / Level; Hold / Un-hold; Retrigger / Non-retrigger.
l Whole Chip Options: Ramp / No-ramp; Output Options; Key / CPU trigger mode.
l 16ms (@ 8KHz sampling rate) Debounce Time for both Key and CPU Trigger Modes.
l RST pin set to HIGH to stop playback at once.
l Three user programmable outputs for STOP plus, BUSY signal and flashing LED.
l Built-in oscillator to control sampling frequency with an external resistor.
l 2.2V – 3.6V single power supply and < 5uA low stand-by current.
l PWM Vout1 and Vout2 drive speaker directly.
l D/A COUT to drive speaker through an external BJT.
l Development System support voice compilation and options selection.

DESCRIPTION

aP89021/010 high performance Voice OTP is fabricated with Standard CMOS process with embedded
512K/256K bits EPROM. It can store up to 21/10 sec voice message with 4-bit ADPCM compression
at 6KHz sampling rate. 8-bit PCM is also available as user selectable option. Two trigger modes,
simple Key trigger mode and Parallel CPU trigger mode facilitate different user interface. User
selectable triggering and output signal options provide maximum flexibility to various applications.
Built-in resistor controlled oscillator, 8-bit current mode D/A output and PWM direct speaker driving
output minimize the number of external components. PC controlled programmer and developing
software are available.

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Integrated Circuits Inc. aP89021/010

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PIN CONFIGURATIONS

PIN NAMES

PIN

Playback

Mode

OUT1

VOUT1

VOUT2

VSS

OUT2

OUT3

COUT

OSC

1

OTP Program

Mode

300 mil DIP

150 mil SOP

Description

16

15

14

13

12

11

10

RST

SBT

S4

S3

VDD

S2

S1

9

VPP

1 OUT1 OEB Programmable output (I/O pin)
2 VOUT1 - PWM output to drive speaker directly
3 VOUT2 - PWM output to drive speaker directly
4 VSS VSS Power Ground
5 OUT2 IO Programmable output (I/O pin)
6 OUT3 - Programmable output (I/O pin)
7 COUT - D/A current output
8 OSC ACLK Oscillator input

9 VPP VPP Supply voltage for OTP programming
10 S1 S1 Trigger pin (input with internal pull-down)
11 S2 S2 Trigger pin (input with internal pull-down)
12 VDD VDD Positive Power Supply
13 S3 S3 Trigger (input with internal pull-down)
14 S4 S4 Trigger (input with internal pull-down)
15 SBT PGM Trigger pin (input with internal pull-down)
16 RST DCLK Reset pin (input with internal pull-down)

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Integrated Circuits Inc. aP89021/010

PIN DESCRIPTIONS

S1 ~ S4

Input Trigger Pins:

- S1 to S4 are 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.

- In OTP Programming Mode, this pin is used as PGM signal.

VDD

Power Supply Pin.

VSS

Power Ground Pin

VOUT1 and VOUT2

Digital PWM output pins which can drive speaker and buzzer directly for voice playback.

OSC

During voice playback, an external resistor is connected between this pin and the VDD pin to set the
sampling frequency. In OTP Programming Mode, this is the ACLK input signal.

VPP

Connection to VDD is required during voice playback. In OTP Programming Mode, this pin is
connected to a separate 6.5V power supply.

OUT1, OUT2 and OUT3

- In Key Trigger Mode and CPU Parallel Command Mode, these pins are user programmable pins

for the STOP pulse, BUSY and LED signals.

- During OTP programming, OUT1 serves as OEB while OUT2 serves as data IO.

COUT

Analog 8-bit current mode D/A output for voice playback

RST

Chip reset in playback mode or DCLK pin in OTP programming mode.

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Integrated Circuits Inc. aP89021/010

VOICE SECTION COMBINATIONS

Voice files created by the PC base developing system are stored in the built-in EPROM of the
aP89021/010 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.

Chip aP89021 aP89010

Memory size 512K bits 256K bits
Max no. of Voice Block 126 124
No. of bytes per Voice Block 512 256
Max. no. of Voice Group 12 12
No. of Voice Table entries 960 960
Voice Length (@ 6KHz 4-bit ADPCM) 21 sec 10 sec

Example of Voice Block Combination

Assume here we have three voice files, they are “How are You?”, Sound Effect and Music. Each of
the voice file is divided into a number of fixed length Voice Block and stored into the memory.

Voice File 1 - “How are You?” is stored in Voice Block B0 to B12.
Voice File 2 - Sound Effect is stored in Voice Block B13 to B15.
Voice File 3 - Music is Voice Block B16 to B40.

Voice Blocks are grouped together using Voice Table to form Voice Group for playback:

Group no. Voice Group contents Voice Table Entries

Group 1 “How are You?” B0 … B12
Group 2 Sound Effect + “How are You?” B13 … B15 + B0 … B12
Group 3 “How are You?” + Music B0 … B12 + B16 … B40
Group 4 Music B16 … B40

Voice Data Compression

Voice File data is stored in the on-chip EPROM as either 4-bit ADPCM or 8-bit PCM format. Voice
data stored as 4-bit ADPCM provides 2:1 data compression which can save 50% of memory space.
On the other hand, voice data are stored as 8-bit PCM format means no data compression is employed
but voice playback quality will be better.

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Integrated Circuits Inc. aP89021/010

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, OUT2 and OUT3.
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.

• Ramp-up-down enable or disable:

When COUT is used for playback, Ramp-up-down should be enabled. This function eliminates
the ‘POP’ noise at the beginning and end of voice playback.
When VOUT1 and VOUT2 are used to drive speaker directly, Ramp-up-down should be
disabled.

Fig. 1 Ramp-up-down Enable Fig.2 Ramp-up-down Disable

• Output Options:

This option sets up the three output pins OUT1 and OUT2 to send out different signals during
voice playback. Four settings are allowed:

OUT1 OUT2 OUT3

Option 1 LED2 LED1 BUSY
Option 2 STOP LED1 LED2
Option 3 LED1 BUSY STOP

Note: Stop plus must be set to enable in order to have STOP plus to come

out. The BUSY output is always HIGH during voice playback.

Fig. 3 Output waveforms

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