IZ8057 MULTI MELODY GENERATOR WITH ACCOMPANEMENT DESCRIPTION The IZ8057 series is a CMOS LSI chip designed for use in advance clock products. It is designed to play the melodies according to previously programmed information. The IZ8057 is capable of generating songs with or without the bell sound effect. By pushing the sequence trigger key, all songs can be sequentially selected and played with autostop function This device also includes a buffer for directly drive piezoelectric buzzer and a pre-amplifier that provides a simple interface to the drives circuit. The IZ8057 has LED terminal for direct drive light emitting diode with rhythm of melody. Upon customer’s request, new melodies may be programmed. FEATURES FUNCTIONS • • • • • • • • • Chime function • Natural sound effect; two individual external envelope circuits • Dynamic speaker can be driven with an external NPN transistor • Power on reset; melody begins from the first note • Output push-pull buffer for directly drive piezoelectric buzzer • On chip envelope circuit and pre-amplifier • DIP-16 or bare chip available 1024-note ROM memory 1.3V to 5V power supply Low power consumption 14 tempos available through mask setting 15 beats available 27 notes (including rest) available 1 sequence trigger key LCD direct drive terminal SONG LIST 1:00 Hush Little Baby + 1 Chimes 13:00 Hush Little Baby + 1 Chimes 2:00 Down the Mountainside We Go + 2 Chimes 14:00 Down the Mountainside We Go + 2 Chimes 3:00 Twinkle Twinkle Little Star + 3 Chimes 15:00 Twinkle Twinkle Little Star + 3 Chimes 4:00 Home on the Range + 4 Chimes 16:00 Home on the Range + 4 Chimes 5:00 The Fire Man + 5 Chimes 17:00 The Fire Man + 5 Chimes 6:00 Spring is Coming + 6 Chimes 18:00 Spring is Coming + 6 Chimes 7:00 Oh! My Darling + 7 Chimes 19:00 Oh! My Darling + 7 Chimes 8:00 Did You Ever See + 8 Chimes 20:00 Did You Ever See + 8 Chimes 9:00 Rockaby Baby + 9 Chimes 21:00 Rockaby Baby + 9 Chimes 10:00 Three Blind Mice + 10 Chimes 22:00 Three Blind Mice + 10 Chimes 11:00 The Framer in the Dell + 11 Chimes 23:00 The Framer in the Dell + 11 Chimes 12:00 Bingo + 12 Chimes 24:00 Bingo + 12 Chimes Remark: The chip IZ8057-01 generates the Chimes signals, only. Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: [email protected] URL: www.bms.by IZ8057 BLOCK DIAGRAM LED MI2 LED Circuit OSCI Oscillator OSCO START Rhythm Generator Tempo Generator BD BDN Envelope Circuit ENV1 ENV2 Main & Accompanement Generator Control & Main ROM Control Output Buffer MTO TEST Pre-Amplifier OP1 OP2 MI1 ABSOLUTE MAXIMUM RATINGS (Ta = 25oC) Characteristic DC Supply Voltage Input/Output Voltage Operating Temperature Storage Temperature Symbol VCC - VSS VIN Topr Tstg Value -0 ~ 5.0 VSS - 0.2 ~ VDD + 0.2 - 10 ~ + 60 - 25 ~ + 125 Unit V V o C o C ELECTRICAL CHARACTERISTICS (Ta = 25oC, V CC = 3V, V SS = 0V; unless otherwise specified) Characteristic Symbol Operating Voltage VCC Supply Current ISTB ICC Stand-by Operating Test Condition Min Typ Max 1.3 3.0 5.0 V 2 1 10 2 mkA mA Output Current (OP1) IOH VO = 2.0V 3.0 Output Current (OP2) IOL VO = 1.0V 3.0 Output Current (BD, BDN) IOH VO = 1.5V 1.0 Output Current (BD, BDN) IOL VO = 1.5V 1.0 Output Current (BUZY) IOH VO = 1.0V 0.1 Output Current (LED) IOH VO = 2.0V 8.0 Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: [email protected] URL: www.bms.by Unit mA IZ8057 FUNCTIONAL DESCRIPTION Oscillator Circuit The oscillation frequency is used as a time base for tone and tempo generators, the accuracy of which affects the quality of which affects the quality of the melody generator. Tempo Generator There are 14 tempos available in this embodiment: 82, 88, 95, 103, 112, 123, 137, 154, 176, 205, 246, 308, 410 and 615 notes per minute. Tone Generator The tone generator is a programmed divider. The tone frequencies are created by dividing the oscillator frequencies with M, where M is an integer from 32 to 127. There are 27 tones selectable in this embodiment, including end code. Rhythm Generator The rhythm generator is also a programmed divider and is used to generate the beat for each tone. In this embodiment, 15 beats are available as follows: 1/4, 1/2, 3/4, 1, 5/4, 3/2, 7/4, 2, 9/4, 5/2, 11/4, 13/4, 7/2 and 15/4. ROM The mask ROM stores the tempo, tone and rhythm data. The ROM sends these data to respective generators so as to control the tempo of each song, the tone codes and the rhythm codes. LED Blinking The blinking of the light emitting diode (LED) is matched with rhythm of the melody. Envelope Circuit The envelope circuit made the melody and accompanement output MTO decreases exponentially. Pre-Amplifier The Pre-Amplifier together with external P-N-P and N-P-N transistors works as audioamplifier. In application modulated tone signal MTO should be connect to the input MI1 of the pre-amplifier through capacitor. Feedback resistor must be connected to obtain the proper bias for the pre-amplifier stage. In the standby state the pre-amplifier is disabled, and OP1 is pulled up to V SS ; OP2 is pulled down to V CC. The Output Buffer The Output Buffer amplifies signal from input MI2 and establishes two output signals BD, BDN for directly drive piezo buzzer. Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: [email protected] URL: www.bms.by IZ8057 In application modulated tone signal MTO should be connected to the input MI2 of the buffer through capacitor. Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: [email protected] URL: www.bms.by IZ8057 TYPICAL APPLICATION CIRCUIT 1. One - Shot application with Speaker VCC VCC + VCC 2.2 µF - 8050 + 10µF VCC + - MI2 ENV1 BD BDN LED OSCI SP 3V OSCO - VCC 0.1µF IZ8057 MTO - ENV2 + 2.2µF MI1 VSS BUSY OP1 OP2 TEST START The die area should be connected to VSS. 2. One - Shot application with Buzzer Drive VCC VCC 2.2µF + 10µF + - 3V - VC C + - ENV1 MI2 BD LED BDN OSCI VCC OSCO 0.1µF IZ8057 MTO ENV2 - + 2.2µF MI1 BUSY VSS OP1 OP2 TEST START The die area should be connected to VSS. Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: [email protected] URL: www.bms.by IZ8057 3. One - Shot application using Pre-Amplifier VCC + VCC - VCC 2.2µF MI2 ENV1 BD LED BDN + OSCI 3V - + - VCC 10µF OSCO IZ8057 MTO + 2.2µF - ENV2 0 . 1µ F MI1 BUSY VSS OP1 Op2 TEST START 30KΩ 15KΩ VCC 0.01µF 9012 0.01µF + - 15KΩ 9013 47µF SP The die area should be connected to VSS. Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: [email protected] URL: www.bms.by IZ8057 PAD LAYOUT 3 2 1 17 16 15 4 Y 5 (0,0) 14 X PAD DIAGRAM IZ8057 13 Chip size: 1850 x 1900 Pad size : 120 x 120 Unit : µm 6 7 8 9 12 10 11 PAD LOCATION ( Unit: µm ) Pad No. Pad Name X Y Description 1 MI2 -196 800 Buffer Input 2 ENV1 -429 800 Envelope 1 3 VCC -665 800 Power supply (1.5V ~ 3.0V) 4 OSCI -775 496 Oscillator Input 5 OSCO -775 285 Oscillator Output 6 BUSY -606 -800 BUSY Output 7 VSS -327 -800 Power supply (0V) 8 OP1 -64.5 -800 Pre-Amplifier Output 9 OP2 168 -800 Pre-Amplifier Output 10 TEST 425 -800 Test Terminal 11 START 636 -800 Start Input 12 MI1 775 -473 Pre-Amplifier Input 13 ENV2 775 -240 Envelope 2 14 MTO 775 -7 15 BDN 690 800 Buffer Output 16 LED 457 800 LED Terminal 17 BD 37 800 Buffer Output Modulated Tone Output The substrate is connected to VSS. Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: [email protected] URL: www.bms.by