RTS0072B RTS0072 VOICE CHANGER Features ‧ Wide operating voltage range 3.0V ∼ 5.0V ‧ No need of external memory. ‧ and low power consumption. ‧ Variable resistor or switch can be used to ‧ Several voice effects selectable adjust the transposed voice effect. ‧ For applications in toy, mask, telephone -- Transposing voice (higher or lower) system and other voice fields. -- Amplifying voice ‧ With a silence function -- Robot voice Low power consumption 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. ¤Þ¸}¹Ï(Pin Assignment) ¹q¸ô®Ø¹Ï(Block Diagram) DAT WOSCI 1 16 RDOUT WOSCO 2 15 VSS S1 3 14 AVSS S2 4 13 IN NRL 6 11 VDD ROB 7 10 DAT ROSCI 8 9 SEL V1.0 12 5 RTS0072B MX IN A/D RAM D/A RDOUT AMPLIFIER COMPARATOR AVDD ROSCO WOSCI WOSCO S1 S2 SEL NRL ROB 1 Control Logic ROSCI ROSCO Aug/21/1998 RTS0072B MAX RATINGS Operating Voltage range 輸入/輸出電壓 -0.3V ∼ 5.0V GND-0.2V ∼ VDD+0.2V Operating Temperature -10℃ ∼ 60℃ Storage Temperature -25℃ ∼ 125℃ 說明* 本欄參數范圍絕對不允許超出，否則元件將 受到永久性的損坏。同樣不允許在臨界條件 下停留太長時間，否則即使不損坏元件，也 將影響元件的可靠性。 V1.0 2 Aug/21/1998 RTS0072B 電氣特性 (VDD＝4.0V，TA＝25℃，FOSC＝800KHZ，) 參數 符號 Min 典型值 Max Operating Voltage VDD 3.0V 4,0V 5.0V Power Consumption IDD -- -- 10.0mA Vin p-p 0.5V 1.5V 2.0V Vout p-p -- 1.67V -- Input Audio Level Output Audio Level V1.0 3 Aug/21/1998 RTS0072B ELECTRICAL CHARACTERISTICS Pin No. Designation Description 1 WOSCI Write (sampling) oscillator input pin. 2 WOSCO Write (sampling) oscillator output pin. 3,4 S1,S2 Output tone select pins; these pins define the output tone frequency. Selection table is as follows: S1 0 0 1 1 S2 0 1 0 1 Output L H VL VH *freq 800Hz 1333Hz 660Hz 2KHz * Input Frequency 1KHz 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 ROB 8 ROSCI Read (re-arranging) oscillator input pin. 9 ROSCO Read (re-arranging) oscillator output pin. 10 DAT This pin is for internal use. (For testing only) 11 VDD Positive power supply. 12 AVDD 13 IN 14 AVSS 15 VSS Negative power supply. 16 RDOUT Audio signal output pin. V1.0 Robot voice effect is selected if this pin is connected to GND. Analog positive power supply. Audio signal input pin. Analog positive power supply. 4 Aug/21/1998 RTS0072B TYPICAL APPLICATIONS 1. 470 Ω R2 4.7K SW1 680 Ω + - 9V 100 µ F + - 0.1 µ F 4.3V C4 5K (VR) + - 100 µF TYPICAL Fr. =300KHz-1MHz 8050 8050 + - 100 µ F 0.047 µ F 47K 8050 16 15 14 1 2 3 100 Ω 13 12 2.7K-3.9K 11 10 6 7 9 RTS0072B 5 4 10K (VR) 8 15K 50P 330 Ω R7 10P DIP TYPICAL Fr.=1MHz 2.帶 386 放大器的可調電阻調節方式 470 Ω SW1 10 Ω 4.3V 0.1 µ F + - 9V 100 µ F + - 0.1 µ F + - 100 µ F 8 1 7 6 TYPICAL Fr. =300KHz-1MHz Ra 5 LM 386 2 3 + - 100 µ F 16 15 14 1 2 3 0.033 µ F 12 2.7K-3.9K 11 10 6 7 9 RTS0072B (VR2) 4 13 100 Ω 4 5 10K (VR) 8 15K 50P Rb 10P 0.033-0.1 µ F TYPICAL Fr.=1MHz DIP Ra:麥克風調節控制,(40K – 20K) VR2: 音量控制 Rb: 最小音量設定(22-120Ω ) V1.0 5 Aug/21/1998 RTS0072B DIE Designation AVSS IN AVDD VDD DAT ROSCO VSS ROSCI about 2.4 mm RDOUT RTS0072B ROB WOSCI WOSCI WOSCO S1 S2 SEL NRL TIN ROB ROSCI ROSCO DAT VDD AVDD IN AVSS VSS RDOUT X Y 179.0 179.0 529.0 1063.0 1606.0 2182.0 2570.5 2570.5 2570.5 2570.5 2285.5 2002.0 1767.0 743.0 460.0 179.0 179.0 968.0 487.0 182.0 182.0 182.0 182.0 482.5 870.5 1278.0 1799.5 2233.0 2233.0 2233.0 2223.0 2223.0 1641.0 1356.0 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