ISSI IS22C012P Versatile 10 sec instant voice rom Datasheet

ISSI
IS22C012
VERSATILE 10 SEC INSTANT
VOICE ROM
®
ADVANCE INFORMATION
FEBRUARY 1999
FEATURES
• Minimum 10 second voice length at 6 KHz
• Versatile features for playback
• Combination of voice building blocks
extends the duration of playback
• Voice data re-use saves memory space
• Four trigger pins, S1 to S4 for eight groups
• SBT for sequential play-all
• Holdable and unholdable, edge and level
triggering option
• 15 ms debounce time suitable for CDS
• IRP interrupt pin for master reset
• Three programmable output pins for STP Stop
Pulse, BUSY Signal, and LED
•
•
•
•
•
•
•
•
•
•
•
Built-in oscillator with variable sample rate
Single external resistor to determine sample rate
Built-in D/A converter, EPROM
ADPCM data compression provides high sound
quality
Optional pop noise elimination function
COUT pin drives speaker with a transistor
VOUT1 and VOUT2 drives buzzer or speaker
directly
Auto-power down
2.4V-6V single power supply operation
Low standby current (<5 µA at 3V)
Development tools support
GENERAL DESCRIPTION
IS22C012 is a high quality voice synthesizer capable of
varying playback duration. A proprietary ADPCM algorithm
is used. The audio message is stored in a 256K bits onchip EPROM which can store up to ten seconds of voice
data at 6 KHz sample rate.
The IS22C012 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.
Group of sections
The voice data memory area of the IS22C012 can be
subdivided into 124 sections. Any combination of these
sections will form an individual group for data playback. A
maximum of eight groups are available with activation
controlled by S1 to S4 pins. The SBT pin can be used to
trigger multiple groups playback in sequence.
Group Configuration
Voice within each group are combinations of different fixed
memory sections of up to 124 sections. These sections are
the fundamental voice building blocks for arranging
playback without limiting sequencing. This provides
flexibility and allows data to be re-used, beneficial for
applications with many repeated sounds or words.
The IS22C012 provides wide operating voltage range
from 2.4V to 6.0V. PWM digital amplifier output pins, VOUT1
and VOUT2 provides direct drive to buzzer or speaker.
An example of group configuration is illustrated below:
Group No.
Section Entry
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 automatic rampdown function eliminates undesired noise at the end of
playback.
Group 1
Sec 1 + Sec 2 + Sec 3 ……. Sec 109
Group 2
Sec 3 + Sec 2
Group 3
Sec 10 + Sec 11 + Sec 12
Group 4
Sec110 + Sec 10 + Sec 5
This specification contains ADVANCE INFORMATION data. ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best
possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 1999, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc. — 1-800-379-4774
ADVANCE INFORMATION VP010-0B
02/24/99
1
ISSI
IS22C012
Group Configuration (continued)
The entry of sections for each group is truly random and
without limitation. However, there is a limit in the total
number of entries for eight groups, which is 992 in the
IS22C012. It is acceptable to allocate all entries into only
one group or distribute out to other groups. It depends on
how many groups of messages are required.
Programmable Options
Groups in IS22C012 can have independent options. They
include:
•
Edge or Level trigger
•
Unholdable or Holdable trigger
•
Retriggerable or non-retriggerable
•
LED1, LED2, Busy, and Stop pulse are configurable
•
Four selections in playback frequency
Selections in Triggering
The IS22C012 can be triggered in different ways, Edge or
Level trigger, Holdable or Unholdable, Retriggerable or
Non-retriggerable. The combinations of the triggering options provide versatile playback.
By enabling Retrigger, the playback can be controlled in
Stop and Start mode. A trigger on any trigger pin will stop the
content message and start the next message immediately.
Selections in Playback Frequency
This option provides four choices for each group in frequency
which implies it is possible to have four different sampling
rates in one chip or one sample rate with a different playback
2
®
frequency. As a matter of fact, the available choices are also
dependent on the pullup resistor value at the OSC pin. For
example, if the fundamental frequency choice is F, it can
provide choices in x1, x1-1/2, x2, x3.
Selections in Output Buffer
There are three independent output pins, OUT1, OUT2, and
OUT3, available for several combinations of LED1, LED2,
Stop Pulse, and Busy Signal for each group. The following
table illustrates the four different combinations.
OUT1
OUT2
OUT3
1.
LED1
LED2
Busy
2.
STOP
LED1
LED2
3.
Busy
Stop
LED1
4.
LED2
Busy
Stop
LED1 and LED2 are complemented outputs flashing at
approximately a 3 Hz rate. Stop pulse (STOP) gives a 15 ms
positive pulse at the end of the playback for each Group with
option have or do not have the Stop pulse.
Busy is active high and Section dependent but not Group
dependent. Even if same section in different group may
have different output in Busy output. For instance, BUSY
can be high for Section 4 in Group 1 but low in Group 4.
BUSY can be used as a synchronous signal. During standby
mode all three outputs must be low.
Software Support
ISSI provides dedicated software to the customer. With this
tool, the customer can compose their own messages and
configure the chip to fit intor their applications very easily.
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ISSI
IS22C012
®
BLOCK DIAGRAM
OSC
OSCILLATOR
VCC
VOICE
EPROM
ADDRESS
SEQUENCER
GND
CLOCK
GENERATOR
S1
S2
S3
S4
SBT
IRP
ADPCM
DECODER
CONTROL
LOGIC
OUT1
OUT2
OUT3
COUT
POP NOISE
REDUCTION
OUTPUT
DRIVER
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D/A
BUZZER
BUFFER
VOUT1
VOUT2
3
ISSI
IS22C012
®
PIN DESCRIPTION
PIN CONFIGURATIONS
300-mil PDIP
OUT1
Programmable output 1
OUT2
Programmable output 2
OUT3
Programmable output 3
VOUT1
PWM audio signal output for buzzer and speaker
OUT1
1
16
IRP
VOUT1
2
15
SBT
VOUT2
3
14
S4
GND
4
13
S3
VOUT2
PWM audio signal output for buzzer and speaker
OUT2
5
12
VCC
GND
Power ground
OUT3
6
11
S2
COUT
Current output from internal DAC for speaker playback
COUT
7
10
S1
OSC
Oscillator resistor pin to control sampling frequency
OSC
8
9
VPP
VPP
Program power supply, no connect when voice playback
S1
Trigger switch 1, internal pull low, active high
S2
Trigger switch 2, internal pull low, active high
VCC
Positive power supply
S3
Trigger switch 3, internal pull low, active high
S4
Trigger switch 4, internal pull low, active high
SBT
Sequential trigger, internal pull low, active high
IRP
Interrupt to stop playback, internal pull low, active high
Note:
1. The following pins are used to program data into the memory: pins 4, 5, 6,
8, 9, 12, 15 and 16.
BONDING PARAMETERS
BONDING DIAGRAM
12 11
Pin
Name
X
Y
1
OUT1
204
–678
2
VOUT1
423
–678
3
VOUT2
718
–678
4
GND
893
–678
5
OUT2
786
677
6
OUT3
590
677
7
COUT
167
677
8
OSC
–89
677
9
VPP
–306
677
10
S1
–483
677
Die size = 2128 x 1635 µm
11
S2
–691
677
83.78 x 64.37 mil
12
VCC
–899
677
13
S3
–796
–678
14
S4
–588
–678
15
SBT
–380
–678
16
IRP
–172
–678
10
9
8
7
6
5
NC
Y
X
(0,0)
13 14
15
16
NC
1
2
3
4
Note: Substrate must be connected to GND
Pad size = 80 µm x 80 µm
Note: Programming requires connection to
pins 4, 5, 6, 8, 9, 12, 15, and 16.
4
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ISSI
IS22C012
®
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC - GND
VIN
VOUT
TA
TSTG
Parameter
Terminal Voltage with Respect to GND
Operating Temperature
Storage Temperature
Value
–0.5 to +7.0
GND – 0.3 < VIN < VCC + 0.3
GND < VOUT < VCC
–10 to +85
–55 to +125
Unit
V
V
V
°C
°C
DC CHARACTERISTICS
Symbol Parameter Description
Test Conditions
Min.
Typ.
Max.
Unit
VCC
ISB
IOP
VIH
VIL
IOH
IOL
ICO
ISTPH
ISTPL
ILED
∆F/F
2.4
Vcc = 3.0V, I/O Open
—
Vcc = 3.0V, I/O Open
—
Vcc = 3.0V
2.5
Vcc = 2.0V
–0.3
Vcc = 3.0V, VOUT = 3.0V
—
Vcc = 3.0V, VOUT = 0V
—
Vcc = 3.0V, VCOUT = 0.7V
—
Vcc = 3.0V, VSTP = 3.0V
—
Vcc = 3.0V, VSTP = 0V
—
Vcc = 2.2V – 6.0V
6
(FOSC [3V] – FOSC [3.5V]) / FOSC (3.0V) —
3.0
1
—
3.0
0
–12
12
–2
–5
5
8
—
6.0
5
100
3.5
0.3
—
—
—
—
—
10
5
V
µA
µA
V
V
mA
mA
mA
mA
mA
mA
%
Operating Voltage
Standby Current
Operating Current
Input HIGH Voltage
Input LOW Voltage
VOUT HIGH Operating Current
VOUT LOW Operating Current
COUT Operating Current
STP HIGH Operating Current
STP LOW Operating Current
LED Output Current
Frequency Stability
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5
ISSI
IS22C012
SAMPLING FREQUENCY vs
ROSC FOR IS22C012
SAMPLING FREQUENCY vs
ROSC FOR IS22C012
Common Sampling Rate vs. Oscillator Resistor
Common Resistors vs. Sampling Rate
Sampling Frequency
KHz
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
22.0
6
ROSC
Kohm
290
262
240
219
201
187
174
162
153
143
135
127
120
108
108
54
ROSC
Kohm
270
240
220
200
180
160
150
130
120
110
100
91
82
®
Sampling Frequency
KHz
5.2
6
6.5
7.1
7.875
8.72
9.25
10.5
11.2
12.5
13
14
16.3
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ISSI
IS22C012
®
TIMING WAVEFORMS
1. Level, Unholdable, Non-retriggerable
a. Trigger is shorter than a Group output
b. Trigger is longer than a Group output
S1
S2
Group 2
COUT
Group 1
Group 2
Group 2
LED
STP
2. Level Holdable
a. Trigger is shorter than a Group output
b. Trigger is longer than a Group output
S1
S2
Group 2
COUT
Group 1
Group 2
Group 2
LED
3. Single Button Trigger (SBT), Sequential
a. Level Unholdable
SBT
COUT
Group 1
Group 2
Group 2
Group 2
Group N
Group 1
Group 2
Group 2
Group 2
Group N
Group 1
b. Level Holdable
SBT
COUT
Group 1
Where N is up to 8.
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7
ISSI
IS22C012
4. Edge, Unholdable, Non-retriggerable
a. Trigger is shorter than a Group output
®
b. Trigger is longer than a Group output
S1
S2
COUT
Group 2
Group 1
Group 2
STP
LED
5. Edge Holdable
a. Trigger is shorter than a Group output
b. Trigger is longer than a Group output
S1
S2
COUT
Group 2
Group 1
Group 2
LED
6. Single Button Trigger (SBT), Sequential
a. Edge Unholdable
SBT
COUT
Group 1
Group 2
Group N
Group 1
Group 2
Group N
Group 1
b. Edge Holdable
SBT
COUT
Group 1
Where N is up to 8.
8
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ISSI
IS22C012
®
APPLICATION CIRCUITS
TYPICAL APPLICATION
Vcc
ROSC
SP
OSC
S1
S2
S3
S4
SBT
IRP
Vcc
VOUT1
ROSC
OSC
COUT
S1
S2
S3
S4
SBT
IRP
R
GND
VOUT2
C
PIEZO
BUZZER OR
32/64 OHM
SPEAKER
GND
CASCADE APPLICATION
Vcc
ROSC
OSC
Vcc
ROSC
SP
OSC
COUT
COUT
SBT
IRP
R
SBT
OUT3
GND
IRP
GND
Notes:
1. To direct dirve a speaker or buzzer, C is needed (C = 0.1 µF).
2. R = 330 Ohm (if using transistor 8050 and Vcc = 4.5V).
3. SP = 8 Ohm speaker.
4. To determine the value of ROSC, refer to the Sampling Frequency vs. ROSC tables on page 6.
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9
ISSI
IS22C012
®
APPLICATION CIRCUITS
PARALLEL APPLICATION
Vcc
ROSC
OSC
Vcc
ROSC
SP
OSC
COUT
S1
S2
S3
S4
SBT
IRP
COUT
S1
S2
S3
S4
SBT
IRP
GND
R
GND
LED APPLICATION
Vcc
ROSC
OSC
S1
S2
S3
S4
SBT
IRP
SP
COUT
R
OUT2
OUT1
GND
Notes:
The following are typical values:
1. ß of NPN transistor > 130.
2. SP = 8Ω. 1/4W.
3. Piezo buzzer resonant frequency = 1 KHz.
10
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ISSI
IS22C012
®
APPLICATION CIRCUITS
CDS APPLICATION
Vcc
ROSC
SP
OSC
CDS
COUT
R
SBT
IRP
GND
8-SEGMENT TRIGGER APPLICATION
SW8
Vcc
ROSC
SW5
SW1
SW6
SP
OSC
S1
COUT
SW2
S2
SW7
SW3
SW4
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R
S3
S4 GND
11
ISSI
IS22C012
®
ORDERING INFORMATION
Commerical Range: 0°C to +70°C
Order Part No.
Package
IS22C012X
Unpackaged
IS22C012P
300-mil Plastic DIP
NOTICE
Integrated Silicon Solution, Inc., reserves the right to make changes to the products contained in this publication
in order to improve design, performance or reliability. Integrated Silicon Solution, Inc. assumes no responsibility
for the use of any circuits described herein, conveys no license under any patent or other right, and makes no
representation that the circuits are free of patent infringement. Charts and schedules contained herein reflect
representative operating parameters, and may vary depending upon a user's specific application. While the
information in this publication has been carefully checked, Integrated Silicon Solution, Inc. shall not be liable for
any damages arising as a result of any error or omission.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications
where the failure or malfunction of the product can reasonably be expected to cause failure of the life support
system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications
unless Integrated Silicon Solution, Inc. receives written assurances, to its satisfaction, that: (a) the risk of injury
or damage has been minimized; (b) the user assumes all such risks; and (c) potential liability of Integrated Silicon
Solution, Inc. is adequately protected under the circumstances.
Copyright 1999 Integrated Silicon Solution, Inc.
Reproduction in whole or in part, without the prior written consent of Integrated Silicon Solution, Inc., is prohibited.
ISSI
®
Integrated Silicon Solution, Inc.
2231 Lawson Lane
Santa Clara, CA 95054
Tel: 1-800-379-4774
Fax: (408) 588-0806
E-mail: [email protected]
www.issi.com
12
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