OKI MSM9803-xxxRS, MSM9805-xxxGS-AK, MSM9805-xxxGS-K, MSM9805-xxxRS, MSM9803-xxxGS-K Datasheet

E2D0018-39-93

This version: Sep. 1999

MSM9802/03/05-xxx¡ Semiconductor

¡ Semiconductor

Previous version: May. 1997

MSM9802/03/05-xxx

Voice Synthesis IC with Built-in Mask ROM

GENERAL DESCRIPTION

The MSM9802/03/05 is a PCM voice synthesis IC with built-in mask ROM.
This IC has two user selectable playback algorithms, OKI Non-linear PCM and straight PCM. It
also contains a current mode 10-bit D/A converter and a low-pass filter.
External control has been made easy by the built-in edit ROM that can form sentences by linking
phrases. By using Oki's Sound Analysis and Editing Tool, ROM data such as Phrase Control
Table can be easily set, created, edited, and evaluated.
With the stand-alone mode/microcontroller interface mode switching pin, the MSM9802/03/
05 can support various applications.

FEATURES

Device

MSM9802
MSM9803
MSM9805

* Actual voice ROM area is smaller by 11 Kbits.

• ROM custom

• 8-bit OKI nonlinear PCM method/8-bit straight PCM method

• Built-in edit ROM

• Random playback function

• Sampling frequency : 4.0 kHz/5.3 kHz/6.4 kHz/8.0 kHz/10.6 kHz/12.8 kHz/

• Maximum number of phrases : 63 (Microcontroller interface mode)

• Built-in current mode 10-bit D/A converter

• Built-in low-pass filter

• Standby function

• RC oscillation (256 kHz)/ceramic oscillation (4.096 MHz) selectable

• Package options:
18-pin plastic DIP (DIP18-P-300-2.54) (Product name: MSM9802-xxxRS/MSM9803-xxxRS/

24-pin plastic SOP (SOP24-P-430-1.27-K) (Product name: MSM9802-xxxGS-K/MSM9803-xxxGS-K/

30-pin plastic SSOP (SSOP30-P-56-0.65-K) (Product name: MSM9802-xxxGS-AK/MSM9803-xxxGS-

Chip

ROM size*

512 Kbits 16.0 10.0 8.0 4.0

1 Mbit 32.4 20.2 16.2 8.1

2 Mbits 65.1 40.7 32.5 16.2

=4.0 kHz f

f

SAM

16.0 kHz
Note: If RC oscillation is selected, 10.6 kHz, 12.8 kHz, and

16.0 kHz cannot be selected.

56 (Stand-alone mode)

Speech period (sec)

=6.4 kHz f

SAM

MSM9805-xxxRS)

MSM9805-xxxGS-K)

AK/MSM9805-xxxGS-AK)

=8.0 kHz f

SAM

xxx indicates code number.

=16.0 kHz

SAM

Note: This data sheet explains a stand-alone mode and a microcontroller interface mode,

separately.

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MSM9802/03/05-xxx¡ Semiconductor

CONTENTS

(1) Stand-alone Mode

BLOCK DIAGRAM ............................................................................................................................. 3

PIN CONFIGURATION ..................................................................................................................... 4

PIN DESCRIPTIONS ........................................................................................................................... 6

ABSOLUTE MAXIMUM RATINGS ................................................................................................. 8

RECOMMENDED OPERATING CONDITIONS ........................................................................... 8

ELECTRICAL CHARACTERISTICS ................................................................................................ 9

TIMING DIAGRAMS ....................................................................................................................... 12

FUNCTIONAL DESCRIPTION....................................................................................................... 14

1. Playback Code Specification ............................................................................................. 14

2. Pull-up/Pull-down Resistor .............................................................................................. 14

3. Stand-alone Mode ............................................................................................................... 14

APPLICATION CIRCUITS .............................................................................................................. 19

(2) Microcontroller Interface Mode

BLOCK DIAGRAM ........................................................................................................................... 21

PIN CONFIGURATION ................................................................................................................... 22

PIN DESCRIPTIONS ......................................................................................................................... 24

ABSOLUTE MAXIMUM RATINGS ............................................................................................... 25

RECOMMENDED OPERATING CONDITIONS ......................................................................... 25

ELECTRICAL CHARACTERISTICS .............................................................................................. 26

TIMING DIAGRAMS ....................................................................................................................... 29

FUNCTIONAL DESCRIPTION....................................................................................................... 31

1. Playback Code Specification ............................................................................................. 31

2. Address Data ....................................................................................................................... 31

3. Stop Code ............................................................................................................................. 32

4. Generating Pseudo - BUSY Signal through NAR pin .................................................... 33

APPLICATION CIRCUIT................................................................................................................. 34

(3) Common

1. Sampling Frequency ........................................................................................................... 35

2. Recording/Playback Time................................................................................................. 35

3. Playback Method ................................................................................................................ 36

4. Phrase Control Table ..........................................................................................................37

5. RC Oscillation ...................................................................................................................... 39

6. Ceramic Oscillation ............................................................................................................ 40

7. Low-pass Filter .................................................................................................................... 42

8. Standby Transition.............................................................................................................. 43

9. Voice Output Unit Equivalent Circuit (AOUT, V

Pins) .......................................... 44

REF

D/A CONVERTER CURRENT CHARACTERISTICS ................................................................ 45

PAD CONFIGURATION ................................................................................................................. 46

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MSM9802/03/05-xxx¡ Semiconductor

(1) STAND-ALONE MODE (CPU/STD: "L" level)

BLOCK DIAGRAM

512-Kbit (MSM9802)
1-Mbit (MSM9803)
2-Mbit (MSM9805)

Multiplexer

Address &
Switching
Controller

6

PCM

Synthesizer

10

8

10-Bit

DAC

&

LPF

AOUT

DATA

Controller

16-Bit (MSM9802)
17-Bit (MSM9803)
18-Bit (MSM9805)

Timing Controller

GNDV

DD

RESET

Random

Circuit

I/O

Interface

OSC

XT/RC

XT/CR

A2
A1

A0
SW2
SW1
SW0

RND

BUSY

OSC1
OSC2

OSC3/TEST

CPU/STD

V

REF

16-Bit (MSM9802)
17-Bit (MSM9803)
18-Bit (MSM9805)

Address Counter

ROM

(Including 11 Kbits of

Edit ROM & Address ROM)

PIN CONFIGURATION (TOP VIEW)

MSM9802/03/05-xxx¡ Semiconductor

A0
A1

A2

RESET

XT/CR

BUSY

GND

V

REF

AOUT

1
2

3
4
5
6
7
8
9

18

SW2

17

SW1

16

SW0

15

RND

14

CPU/STD

13

OSC3/TEST

12

OSC2

11

OSC1

10

V

DD

18-Pin Plastic DIP

Note: Applicable to MSM9802-xxxRS, MSM9803-xxxRS, and MSM9805-xxxRS.

V

1

DD

24

AOUT

23
22

21
20
19
18
17
16
15
14
13

NC

NC

RND

NC

SW0
SW1
SW2

2
3

4
5
6
7
8
9

10
11
12

OSC1
OSC2

OSC3/TEST

CPU/STD XT/CR

NC: No connection

24-Pin Plastic SOP

V

REF

GND
NC

BUSY

NC

RESET

NC
A2

A1
A0

Note: Applicable to MSM9802-xxxGS-K, MSM9803-xxxGS-K, and MSM9805-xxxGS-K.

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MSM9802/03/05-xxx¡ Semiconductor

V

DD

OSC1
OSC2

NC
NC

OSC3/TEST

NC

CPU/STD

NC

RND

NC

SW2

30
29

28
27
26
25
24
23
22

21
20

16

AOUT
V

GND
NC
NC

BUSY

NC
XT/CR
NC

RESET

NC

A0

1
2

3
4
5
6
7
8
9

10
11
12 19NC NC
13 18SW0 A2
14 17SW1 A1
15

REF

NC: No connection

30-Pin Plastic SSOP

Note: Applicable to MSM9802-xxxGS-AK, MSM9803-xxxGS-AK, and MSM9805-xxxGS-AK.

5/51

PIN DESCRIPTIONS

MSM9802/03/05-xxx¡ Semiconductor

Pin

DIP4SOP17SSOP

21

62025

51823

14 7 8

82329

92430

72228

10 1 1

11 2 2

12 3 3

13 5 6

15810

Symbol Type Description

The IC enters the standby state if this pin is set to "L" level. At this time,
oscillation stops and AOUT drives a current of 0mA and becomes GND

RESET I

level, then the IC returns to the initial state.
Apply a "L" pulse upon power-on.
This pin has an internal pull-up resistor.
Outputs "L" level while voice is being played back.

BUSY O

At power-on, this pin is at "H" level.
XT/RC switching pin. Set to "H" level if ceramic oscillation is used.

XT/CR I

Set to "L" level if RC oscillation is used.
Microcontroller interface/stand-alone mode switching pin.

CPU/STD I

Set to "L" level if the MSM9802/03/05 is used in stand-alone mode.
Volume setting pin. If this pin is set to GND level, the maximum
current is forced in. If this pin is set to V

V

REF

I

is forced in. A pull-down resistor of approx. 10 W is internally
connected to this pin during operation.
Voice output pin.

AOUT O

The voice signals are output as current changes. In standby state, this
pin drives a current of 0 mA and becomes GND level.

GND —

Ground pin.
Power supply pin. Insert a bypass capacitor of 0.1 mF or more between

V

DD

—

and GND pins.

V

DD

Ceramic oscillator connection pin when ceramic oscillation is selected.

OSC1 I

RC connection pin when RC oscillation is selected.
Input from this pin if external clock is used.
Ceramic oscillator connection pin when ceramic oscillation is selected.
RC connection pin when RC oscillation is selected.

OSC2 O

Leave this pin open if external clock is used.
Outputs "L" level in standby state.
Leave this pin open when ceramic oscillation is used.

OSC3/TEST O

RC connection pin when RC oscillation is selected.
Outputs "H" level in standby state when RC oscillation is selected.
Random playback starts if RND pin is set to "L" level.
Fetches addresses from random address generation circuit in the IC at

RND I

fall of RND. Set to "H" level when the random playback function is not
used. This pin has internal pull-up resistor.

level, the minimum current

DD

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MSM9802/03/05-xxx¡ Semiconductor

Pin

DIP SOP SSOP

16-18 10-12 13-15

1-3 13-15 16-18

Symbol Type Description

Phrase input pins corresponding to playback sound.

SW0 - SW2 I

A0 - A2 I

If input changes, SW0 to SW2 pins fetch addresses after 16 ms and
start voice synthesis.
Each of these pins has internal pull-down resistor.
Phrase input pins corresponding to playback sound.
Input logic of A0 pin becomes invalid if the random playback function
is used.

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ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Condition Rating Unit

Power Supply Voltage
Input Voltage
Storage Temperature

T

V

V

DD

IN

STG

Ta=25°C

RECOMMENDED OPERATING CONDITIONS

Parameter Symbol Condition Range Unit

Power Supply Voltage V
Operating Temperature —

Master Clock Frequency 1

T

f

OSC1

OSC2

DD

op

— 2.0 to 5.5 V

MSM9802/03/05-xxx¡ Semiconductor

–0.3 to +7.0 V

–0.3 to VDD+0.3 V

–55 to +150 °C—

–40 to +85 °C

Min. Max.

Typ.

4.0963.5 4.5
256200 300Master Clock Frequency 2 f

(GND=0 V)

(GND=0 V)

MHzWhen crystal is selected

kHzWhen RC is selected (*1)

*1 The accuracy of the oscillation frequency when RC oscillation is selected depends largely on

the accuracy of the external R and C.

8/51

ELECTRICAL CHARACTERISTICS

DC Characteristics

(V

=5.0 V, GND=0 V, Ta=–40 to +85°C, unless otherwise specified)

DD

Parameter Symbol Condition Unit

"H" Input Voltage V
"L" Input Voltage —

*1

*2

*3

*4

Standby Current I

V

Pin Pull-down Resistance

REF

IH

V

IL

V

OH

V

OL

IH1

Internal pull-down resistor

Applies to OSC1 pin only.

I

IH2

IH3

IL1

IL2

V

DD1

AOUT bias voltage=0V

At maximum output current

DD2

V

AOUT bias voltage=0V

DS

At maximum output current,

AOUT

V

AOUT bias voltage=0V

R

VREF

MSM9802/03/05-xxx¡ Semiconductor

Min. Max.

——V

4.2 —
— 0.8

4.6 —

DD

V

IH=VDD

REF=VDD

REF

REF

,

=GND,

=GND,

Typ.

—V
—V"H" Output Voltage IOH=–1 mA
—— 0.4
——10"H" Input Current 1 I
9030 200"H" Input Current 2 I

——15"H" Input Current 3

—–10 —"L" Input Current 1 I

–90–200 –30"L" Input Current 2 I

0.4—1Dynamic Supply Current 1 I

——16Dynamic Supply Current 2 I

V"L" Output Voltage IOL=2 mA
µAVIH=V
µA

µA

µAVIL=GND
µAInternal pull-up resistor

mA

mA

——10µATa=–40 to +70°C
——50

9.5615AOUT Output Current I

10713

µATa=70 to 85°C

mA

kW—

*1 Applicable to SW0-SW2
*2 Applicable to RESET, RND
*3 Dynamic supply current (excluding DAC output current)
*4 Dynamic supply current at maximum output current

9/51

DC Characteristics

(V

=3.1 V, GND=0 V, Ta=–40 to +85°C, unless otherwise specified)

DD

Parameter Symbol Condition Unit

"H" Input Voltage V
"L" Input Voltage —

*1

*2

*3

*4

Standby Current I

V

Pin Pull-down Resistance

REF

IH

V

IL

V

OH

V

OL

IH1

IH2

Internal pull-down resistor

Applies to OSC1 pin only.

IH3

IL1

IL2

V

DD1

AOUT bias voltage=0V

At maximum output current

I

DD2

V

AOUT bias voltage=0V

DS

At maximum output current,

AOUT

V

AOUT bias voltage=0V

R

VREF

MSM9802/03/05-xxx¡ Semiconductor

Min. Max.

——V

2.7 —
— 0.5

2.6 —

DD

V

IH=VDD

REF=VDD

REF

REF

,

=GND,

=GND,

Typ.

—V
—V"H" Output Voltage IOH=–1 mA
—— 0.4
——10"H" Input Current 1 I
3010 100"H" Input Current 2 I

——15"H" Input Current 3 I

—–10 —"L" Input Current 1 I

–30–100 –10"L" Input Current 2 I

0.15— 0.5Dynamic Supply Current 1 I

—— 5.5Dynamic Supply Current 2

V"L" Output Voltage IOL=2 mA
µAVIH=V
µA

µA

µAVIL=GND
µAInternal pull-up resistor

mA

mA

——5µATa=–40 to +70°C
——20

3.21.4 5AOUT Output Current I

10713

µATa=70 to 85°C

mA

kW—

*1 Applicable to SW2-SW0
*2 Applicable to RESET, RND
*3 Dynamic supply current (excluding DAC output current)
*4 Dynamic supply current at maximum output current

10/51

AC Characteristics

Parameter Symbol Condition Unit

Master Clock Duty Cycle f

RESET Input Pulse Width —
RESET Input Time After Power-on

BUSY

Output Time t

duty

t

w(RST)

t

D(RST)

t

w(RAN)

w(SW)

SBS

CHA

CHB

, t

DAR

DAF

STB

BLN

RA

f

MSM9802/03/05-xxx¡ Semiconductor

(V

=5.0 V, GND=0 V, Ta=–40 to +85°C)

DD

Min. Max.

—50%

40 60
10 —

—

0—

(note)

(note)

—

(note)
(note)
(note)

SAM

=8 kHz

(note)
(note)

Typ.

—µs
—µs
—100 —
—16 —SW0-SW2 Input Pulse Width t
——10
1514 16Chattering Prevention Time 1 t
——16Chattering Prevention Time 2 t

6460 68D/A Converter Change Time t
250200 300Standby Transition Time t
375350 500Silence Time Between Phrases t

1615 17Random Address Fetch Time t

µsRND Input Pulse Width —

ms—

µs—
ms—
ms
ms—
ms—

µs

µs—

(Note) Proportional to master the periods of oscillation frequencies f

The rated values show values when the standard master oscillation frequency is used.

OSC1

and f

OSC2

.

11/51

TIMING DIAGRAMS

AC Characteristics at Power-On

MSM9802/03/05-xxx¡ Semiconductor

V

DD

VDDMin

t

D(RST)

RESET (I)

t

W(RST)

BUSY (O)

SW2-SW0 (I)

AC Characteristics in Standby Status and when the IC is Activated

A2-A0 (I)

SW2-SW0 (I)

SW0 (I)

BUSY (O)

t

t

SBS

First phrase

First phrase"000" "000"
t

w(SW)

CHA

Address data fetch

AOUT (O)

t

DAR

Standby status

Oscillation start

Repeated Playback Timing

A2-A0 (I)

SW2-SW0 (I)

SW0 (I)

BUSY (O)

AOUT (O)

Standby transition time

D/A converter change time

First phrase

First phrase"000" "000"

t

STB

Single phrase

playback

t

DAF

Standby status

Single phrase

repeated playback

t

BLN

12/51

Timing when Changing from SW2 to SW0 During Playback

MSM9802/03/05-xxx¡ Semiconductor

A2-A0 (I)

SW2-SW0 (I)

SW2 (I) "L"

SW1 (I)

SW0 (I)

BUSY (O)

AOUT (O)

First phrase

First phrase"000" "000"

First phrase

playback

First phrase playback stops

t

CHB

Repeated Playback Timing for Random Playback

RND (I)

Second phrase

Second phrase "000"

t

BLN

Second phrase

playback

BUSY (O)

AOUT (O)

First phrase

playback

repeated playback

Oscillation start

Timing when Changing from A2 to A0 During Playback

A2-A0 (I)

SW2-SW0 (I)

(Ex.)

"000" "000"

SW0 (I)

First phrase

First phrase

t

CHA

First phrase

Same phrase

t

BLN

Second phrase

(Second phrase)

Second phrase

Address data fetch

BUSY (O)

AOUT (O)

First phrase

playback

t

BLN

Second phrase

playback

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MSM9802/03/05-xxx¡ Semiconductor

FUNCTIONAL DESCRIPTION

1. Playback Code Specification

The user can specify a maximum of 56 phrases. Table 1.1 shows the settings by the A2-A0 and
SW2-SW0 pins.

Table 1.1 User-specified Phrases

A2-A0 Code Details

000

111

SW2-SW0

000
001

111

Inhibit code

User-specified phrase

(56 phrases)

2. Pull-up/Pull-down Resistor

The RESET and RND pins have internal pull-up resistors and the SW2-SW0 pins have internal
pull-down resistors.

3. Stand-alone Mode

In a stand-alone mode, the SW input interface function and the random playback function can
be used.

3.1 SW input interface

With the SW input interface, speech synthesis starts when the state of the SW2-SW0 pins has
changed. To prevent chattering, the address data is latched 16 ms (t

) after the state of SW2-

CHA

SW0 has changed. Voice synthesis does not start if the state of the A2-A0 pins has changed. Set
the RND pin to "H" level if the random playback function is not used.

Set the A2-A0 pins to "L" level at power-on or at reset.
The SW input interface is effective when the MSM9802/03/05 is operated using a push-button
switch. Voice synthesis starts when an address is changed by pressing the push-button switch.
If the push-button switch is released during playback, then playback stops after the current
phrase is completed.

A2-A0 (I)

SW2-SW1 (I) "L"

t

CHA

t

w(SW)

SW0 (I)

BUSY (O)

AOUT (O)

Oscillation start

Figure 3.1 SW Input Interface Single-Phrase Playback Timing

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MSM9802/03/05-xxx¡ Semiconductor

If playback is attempted at an unused address in the phrases, AOUT goes to 1/2 I

AOUT

and

playback does not occur. Figure 3.2 shows the timing.

A2-A0 (I)

SW2-SW1 (I) "L"

SW0 (I)

BUSY (O)

AOUT (O)

Oscillation start

Figure 3.2 Timing when Playback is Attempted at an Unused Phrase Address

In the SW input interface, no phrase is triggered when SW2 to SW0 are all set to "0". Therefore,
when the circuit consists of a diode matrices that use push-button switches, the maximum
playback phrases are 56 phrases.

A2-A0

000
001
002

111

8 codes

SW2-SW0

¥

¥

(000)

001
002

111

7 codes

Code Prohibited

= 56 Phrases

= 56

3.2 Random playback function

The random playback function randomly generates 15 different addresses corresponding to the
four bits of the addresses of A0 and SW2-SW0 (except ALL "L") on the IC, after which playback
commences.

Therefore, any input to A0 and SW2 to SW0 pins from external control is invalid. Hold these 4
pins either "H" or "L" level. SW2 to SW0 pins may be held open as they have internal pull-down
resistor.

Playback may not occur if all the 15 addresses have not been assigned a phrase. Care must be
taken when creating ROM data.

For example, when four phrases, "sunny", "rainy", "cloudy", and "snowy", are to be played
randomly, set the phrases as shown in Table 3.1 in which a phrase is assigned to all the 15
addresses. The four phrases are then played back at random as shown below.

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MSM9802/03/05-xxx¡ Semiconductor

Table 3.1 Random Address Setup Example

A2, A1 A0, SW2-SW0 Phrase

00 0001

0010
0011
0100
0101

1110
1111

sunny

rainy
cloudy
snowy

sunny

rainy
snowy

Random playback starts when the timing shown in Figure 3.3 is input to the RND pin. A random
address is fixed based on the "H" level time of the RND pin during IC oscillation. Random
address is captured at the fall of the RND pin, and voice playback commences. Therefore, when
power is turned on, or when RESET is input, the phrase at fixed address "0001" is played while
the random counter remains initialized until random playback is initiated.

RESET (I)

RND (I)

BUSY (O)

AOUT (O)

Oscillation start

t

W (RAN)

t

RA

t

W (RAN)

Random address fixed time Random address fixed time

t

RA

Playback

(Address = 0001)

Playback

(Address = random)

Figure 3.3 Random Address Capture

16/51