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RTS0072B
RTS0072
VOICE CHANGER Features
Wide operating voltage range 3.0V 5.0V and low power consumption. Several voice effects selectable -- Transposing voice (higher or lower) -- Amplifying voice -- Robot voice Low power consumption No need of external memory. Variable resistor or switch can be used to adjust the transposed voice effect. For applications in toy, mask, telephone system and other voice fields. With a silence function
General Description
The RTS0072B is a single chip CMOS LSI designed for voice changer, which can transpose or distort one voice into another voice by encoding the input audio signals in normal speed and transmit the output audio signals with unusual speed. That is accomplished by sampling the input audio signals into digital signals and re-arranges the digital signals to generate different voice from the user normal voice.
}I(Pin Assignment)
qo(R)OI(Block Diagram)
DAT
WOSCI WOSCO S1 S2 SEL NRL ROB ROSCI
1 2 3 4
16 15 14 13
RDOUT VSS AVSS IN AVDD VDD DAT ROSCO
IN
MX AMPLIFIER COMPARATOR
A/D
RAM
D/A
RDOUT
12 5 RTS0072B 6 7 8 11 10 9
WOSCI WOSCO S1 S2 SEL NRL ROB
Control Logic
ROSCI ROSCO
V1.0
1
Aug/21/1998
RTS0072B
MAX RATINGS
Operating Voltage range / -0.3V 5.0V
GND-0.2V VDD+0.2V -25 125
Operating Temperature -10 60 Storage Temperature
*

V1.0
2
Aug/21/1998
RTS0072B
(VDD4.0VTA25FOSC800KHZ) Operating Voltage Power Consumption Input Audio Level Output Audio Level VDD IDD Vin p-p Vout p-p Min 3.0V -0.5V - 4,0V -1.5V 1.67V Max 5.0V 10.0mA 2.0V --
V1.0
3
Aug/21/1998
RTS0072B
ELECTRICAL CHARACTERISTICS
Pin No. 1 2 3,4
Designation WOSCI WOSCO S1,S2
Description Write (sampling) oscillator input pin. Write (sampling) oscillator output pin. Output tone select pins; these pins define the output tone frequency. Selection table is as follows: S1 S2 Output *freq * Input Frequency 1KHz 0 0 L 800Hz 0 1 H 1 0 VL 1 1 VH
1333Hz 660Hz 2KHz
5
SEL
The voice effect are adjusted by variable resistor if this pin is connected to GND.
6
NRL
Amplifying voice effect is selected if this pin is connected to GND. Transposing voice effect is selected if this pin is floating.
7 8 9 10 11 12 13 14 15 16
ROB ROSCI ROSCO DAT VDD AVDD IN AVSS VSS RDOUT
Robot voice effect is selected if this pin is connected to GND. Read (re-arranging) oscillator input pin. Read (re-arranging) oscillator output pin. This pin is for internal use. (For testing only) Positive power supply. Analog positive power supply. Audio signal input pin. Analog positive power supply. Negative power supply. Audio signal output pin.
V1.0
4
Aug/21/1998
RTS0072B
TYPICAL APPLICATIONS 1.
470 SW1 680 + - 9V 100 F + 5K (VR) 8050 0.047 F 47K 100 1 15K 330 R7 TYPICAL Fr.=1MHz 50P 10P DIP 2 8050 + - 100 F 8050 16 15 14 13 12 11 2.7K-3.9K 10 9 R2 4.7K 0.1 F C4 4.3V
+ - 100 F TYPICAL Fr. =300KHz-1MHz
RTS0072B
3 4 5 6 7 8
10K (VR)
2. 386
470 SW1 10 0.1 F + - 9V 100 F + + - 100 F 0.1 F Ra 2.7K-3.9K 10 9 4.3V
+ - 100 F TYPICAL Fr. =300KHz-1MHz
8 1
7
6
5 4 0.033 F (VR2)
16
15
14
13
12
11
LM 386 23
RTS0072B
1 2 15K 50P 10P DIP 3 4 5 6 7 8
10K (VR)
100 Rb
0.033-0.1 F
TYPICAL Fr.=1MHz
Ra:,(40K - 20K) VR2: Rb: (22-120 )
V1.0
5
Aug/21/1998
RTS0072B
DIE
Designation WOSCI WOSCO S1 S2 SEL NRL TIN ROB ROSCI ROSCO DAT VDD AVDD IN AVSS VSS RDOUT
X 179.0 179.0 529.0 1063.0 1606.0 2182.0 2570.5 2570.5 2570.5 2570.5 2285.5 2002.0 1767.0 743.0 460.0 179.0 179.0
Y 968.0 487.0 182.0 182.0 182.0 182.0 482.5 870.5 1278.0 1799.5 2233.0 2233.0 2233.0 2223.0 2223.0 1641.0 1356.0
AVSS
IN
AVDD
VDD
DAT ROSCO
VSS ROSCI about 2.4 mm RDOUT
RTS0072B
ROB WOSCI TIN WOSCO S1
Unit: in mil S2 SEL NRL X: 108.3 Y: 96.1 Note: Substrate is connected to VDD about 2.8 mm
http://www.cbtricks.com
V1.0
6
Aug/21/1998

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