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Speech Controller. SN67D03 Datasheet |
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SN67d03
One Channel Direct Drive Speech Controller
INTRODUCTION
SN67d03 Series is a 3 seconds one-channel single chip voice synthesizer IC
which contains a PWM Direct Drive Circuit. There are two IO pins (one input,
one IO), which can be configured as two trigger pins, or one trigger and one
output. By filling a coding form, users’ applications, including section
combination, trigger modes, and different output status, can be easily
implemented.
FEATURES
Single power supply 2.4V – 5.1V
3 seconds voice capacity is provided
1-bit input port (P1) and 1-bit I/O port (P2) are provided
16*1 bits RAM are provided
Built in a high quality speech synthesizer
Two different playing rate, 6KHz and 8KHz.
Built in a PWM Direct Drive circuit output BUO1 and BUO2 directly
connected to Speaker for sound output
System clock: 2MHZ
Low Voltage Reset
PIN ASSIGNMENT
Symbol
P1
P2
VDD
OSC
GND
BUO1
BUO2
I/O Function Description
I Input port
I/O I/O port
I Positive power supply
I Oscillation component connection pin
I Negative power supply
O PWM output 1
O PWM output 2
1 September 7, 2001
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SN67d03
One Channel Direct Drive Speech Controller
ABSOLUTE MAXIMUM RATINGS
Items
Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
Symbol
VDD-V
VIN
TOP
TSTG
Min
-0.3
GND-0.3
-20.0
-55.0
Max
6.0
VDD+0.3
70.0
125.0
Unit.
V
V
oC
oC
ELECTRICAL CHARACTERISTICS
Item
Sym.
Operating Voltage
Standby current
Operating Current
Input current of P1, P2
Drive current of P2
Sink Current of P2
Drive current of Buo1
Sink Current of Buo1
VDD
ISBY
IOPR
IIH
IOD
IOS
IOD
IOS
Drive Current of Buo2
Sink Current of Buo2
Oscillation Freq.
IOD
IOS
FOSC
Min.
2.4
-
-
-
1.5
2.0
100
100
100
100
-
Typ.
3.0
-
-
3.0
2
3
120
120
120
120
2.0
Max.
5.1
2.0
250
10.0
-
-
-
-
-
-
-
Unit Condition
V
uA VDD=3V, no load
uA VDD=3V, no load
uA VDD=3V,VIN=3V
mA VDD=3V,VO=2.4V
mA VDD=3V,VO=0.4V
mA VDD=3V,Buo1=1.5V
mA VDD=3V,Buo1=1.5V
mA VDD=3V,Buo2=1.5V
mA VDD=3V,Buo2=1.5V
MHz VDD=3V
2 September 7, 2001
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APPLICATION CIRCUIT
SN67d03
One Channel Direct Drive Speech Controller
VDD
300K
0.1uF
VDD
P1
OSC
P2
SN67d03
GND
BUO1
BUO2
VDD
Note: Please bond all of VDD and VSS pins.
3 September 7, 2001
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