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| 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 * * * * * * * * 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 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 SONG LIST 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 Hush Little Baby Down the Mountainside We Go Twinkle Twinkle Little Star Home on the Range The Fire Man Spring is Coming Oh! My Darling Did You Ever See Rockaby Baby Three Blind Mice The Framer in the Dell Bingo + 1 Chimes + 2 Chimes + 3 Chimes + 4 Chimes + 5 Chimes + 6 Chimes + 7 Chimes + 8 Chimes + 9 Chimes + 10 Chimes + 11 Chimes + 12 Chimes 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 24:00 Hush Little Baby Down the Mountainside We Go Twinkle Twinkle Little Star Home on the Range The Fire Man Spring is Coming Oh! My Darling Did You Ever See Rockaby Baby Three Blind Mice The Framer in the Dell Bingo + 1 Chimes + 2 Chimes + 3 Chimes + 4 Chimes + 5 Chimes + 6 Chimes + 7 Chimes + 8 Chimes + 9 Chimes + 10 Chimes + 11 Chimes + 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: belms@belms.belpak.minsk.by URL: www.bms.by IZ8057 BLOCK DIAGRAM LED MI2 LED Circuit Output Buffer BD BDN OSCI OSCO Oscillator Tempo Generator Rhythm Generator Envelope Circuit ENV1 ENV2 START Control Control & Main ROM Main & Accompanement Generator MTO TS ET 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 Operating Voltage Supply Current Stand-by Operating Symbol VCC ISTB ICC IOH IOL IOH IOL IOH IOH VO = 2.0V VO = 1.0V VO = 1.5V VO = 1.5V VO = 1.0V VO = 2.0V 3.0 3.0 1.0 1.0 0.1 8.0 mA Test Condition Min 1.3 Typ 3.0 2 1 Max 5.0 10 2 Unit V mkA mA Output Current (OP1) Output Current (OP2) Output Current (BD, BDN) Output Current (BD, BDN) Output Current (BUZY) Output Current (LED) 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: belms@belms.belpak.minsk.by URL: www.bms.by 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: belms@belms.belpak.minsk.by 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: belms@belms.belpak.minsk.by URL: www.bms.by IZ8057 TYPICAL APPLICATION CIRCUIT 1. One - Shot application with Speaker VCC VCC + VCC - 2.2F 8050 + 3V 10F + - VCC OSCI ENV1 MI2 BD LED BDN SP - OSCO IZ8057 0.1F MO T ENV2 VCC - + 2.2F MI1 BS UY VSS OP1 OP2 TEST SA T TR The die area should be connected to VSS. 2. One - Shot application with Buzzer Drive VCC VCC 2.2F + - + 3V 10F + - VC C OSCI ENV1 MI2 BD LED BDN - OSCO VCC IZ8057 0.1F MTO ENV2 - + 2.2F MI1 BUSY VSS OP1 OP2 TS ET SA T TR 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: belms@belms.belpak.minsk.by URL: www.bms.by IZ8057 3. One - Shot application using Pre-Amplifier VCC + V CC 2.2F VCC ENV1 MI2 B D LD E BDN + 3V OSCI + VCC 10F OSCO - IZ8057 MO T + 2.2F 0.1F ENV2 MI1 BUSY VSS Op2 TS ET START 30K OP1 15K VCC 0.01F 9012 0.01F + 9013 47F 15K S P 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: belms@belms.belpak.minsk.by URL: www.bms.by IZ8057 PAD LAYOUT 3 2 1 17 16 15 4 Y 5 (0,0) X 14 PAD DIAGRAM IZ8057 13 Chip size: 1850 x 1900 Pad size : 120 x 120 Unit : m 12 6 7 8 9 10 11 PAD LOCATION Pad No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Pad Name MI2 ENV1 VCC OSCI OSCO BUSY VSS OP1 OP2 TEST START MI1 ENV2 MTO BDN LED BD X -196 -429 -665 -775 -775 -606 -327 -64.5 168 425 636 775 775 775 690 457 37 Y 800 800 800 496 285 -800 -800 -800 -800 -800 -800 -473 -240 -7 800 800 800 Buffer Input Envelope 1 Power supply (1.5V ~ 3.0V) Oscillator Input Oscillator Output BUSY Output Power supply (0V) Pre-Amplifier Output Pre-Amplifier Output Test Terminal Start Input Pre-Amplifier Input Envelope 2 Modulated Tone Output Buffer Output LED Terminal Buffer Output Description ( Unit: m ) 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: belms@belms.belpak.minsk.by URL: www.bms.by |
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