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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 I I/O I I I O O Function Description Input port I/O port Positive power supply Oscillation component connection pin Negative power supply PWM output 1 PWM output 2
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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
o o
C C
ELECTRICAL CHARACTERISTICS
Item 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 Drive Current of Buo2 Sink Current of Buo2 Oscillation Freq. Sym. Min. Typ. Max. Unit VDD ISBY IOPR IIH IOD IOS IOD IOS IOD IOS FOSC 2.4 1.5 2.0 100 100 100 100 3.0 3.0 2 3 120 120 120 120 2.0 5.1 2.0 250 10.0 V uA uA uA mA mA mA mA Condition VDD=3V, no load VDD=3V, no load VDD=3V,VIN=3V VDD=3V,VO=2.4V VDD=3V,VO=0.4V VDD=3V,Buo1=1.5V VDD=3V,Buo1=1.5V
mA VDD=3V,Buo2=1.5V mA VDD=3V,Buo2=1.5V MHz VDD=3V
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SN67D03
One Channel Direct Drive Speech Controller
APPLICATION CIRCUIT
VDD
VDD P1 VDD 300K OSC 0.1uF GND BUO2 P2
SN67D03
BUO1
Note: Please bond all of VDD and VSS pins.
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SN67D03
One Channel Direct Drive Speech Controller
BONDING PAD
(0,0)
8 P1 P2 GND 1 2 3 4 BUO1 5 VDD 7 6 BUO2
OSC GND
SN67D03
Note: The substrate MUST be connected to Vss in PCB layout.
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SN67D03
One Channel Direct Drive Speech Controller
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