sm1350 Nippon Precision Circuits Inc, (NPC), sm1350 Datasheet
sm1350
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sm1350 Summary of contents
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... OVERVIEW The SM1350 series are single-chip high tone quality melody ICs, fabricated using NPC’s Molybdenum- gate CMOS process. Melodies are selected in serial or binary (parallel) mode maximum of 16 melody blocks. There are 4 sound generators incor- porated to produce 4 kinds of output tone controlled ...
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... BLOCK DIAGRAM MODE LH Input Circuit STOP STN TO T1N T2N T3N XT Oscillator XTN SM1350 series Wave ROM Arithmetic block Circuit + Parameter ROM Control Circuit Score ROM NIPPON PRECISION CIRCUITS INC.—2 SP DAC SPN VOL MSB MSBN BUSYN CT ICN VDD VSS ...
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... pull-up resistor connection pull-up resistor connection only when melody output starts p-channel open drain complementary output pull-up resistance or open drain (master slice) 2. BTL/A-class output mode is selected by mask option. SM1350 series 1 State − Supply pin SU SU Binary select mode: Phrase select pins. ...
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... Serial-mode melody selections Melody output circuit Level-hold melody select change retrigger Pull-up/pull-down resistance Underlined entries are the default standard options. Throughout this datasheet, the standard options are assumed unless otherwise specified. U: pull-up resistance O: open input SM1350 series Symbol Condition ...
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... XT. 3.Output current when 20 k Ω volume control resistor is connected to VOL, and all D/A converter bits ON, measured using the circuit of the next page. SM1350 series = 4.0MHz O ...
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... Supply voltage ratings shown are with oscillator running and all functions operating normally. 2. Clock frequency and duty cycle are ratings for the clock input on pin XT. 3. Output current when 20kΩ volume control resistor is connected to VOL, and all D/A converter bits ON, measured using the following circuit. SM1350 series = 4.0MHz O ...
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... Melody start delay time STOP pulsewidth ENDN delay time ENDN pulsewidth 1.Oscillator start-up time = [time from when STN goes LOW to when TO goes HIGH] − 25.0 µs. 2.The time taken for fast damping to reduce the envelope to 0 level. SM1350 series Symbol Condition t ICW t ...
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... Input data is considered invalid for intervals less than 65.5 ms. Internal Clock STN or STOP Input Reception Figure 2. STN, STOP chattering prevention timing (oscillator running) Note: Refer to the "TIMING DIAGRAMS" section to confirm melody timing specifics. SM1350 series 81.9ms 65.5ms 81.9ms 81.9ms NIPPON PRECISION CIRCUITS INC.—8 ...
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... Output pins I • SP, SPN : Open • MSB, MSBN : V DD • • BUSYN : V DD Serial melody counter I Reset to first melody ( all 0) Oscillator circuit I Stopped SM1350 series #M #M 65.5 65.5 65.5 65 NIPPON PRECISION CIRCUITS INC.— 65.5 ms ...
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... SP and the amplifier to recover the signal. VDD VSS VOL Note: Refer to the "TIMING DIAGRAMS" section to confirm melody timing specifics. SM1350 series MSB MSBN SP SPN Figure 4 ...
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... Level hold melody output (LH = HIGH) STN # Melody Output Figure 7. Level hold mode (binary select) with “Select change retrigger [No]” mask option Note: Refer to the "TIMING DIAGRAMS" section to confirm melody timing specifics. SM1350 series Melody S3 S2 1st melody H L 2nd melody ...
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... Output Note: Refer to the "TIMING DIAGRAMS" section to confirm melody timing specifics. Level hold melody output (LH = HIGH) STN Melody Output Note: Refer to the "TIMING DIAGRAMS" section to confirm melody timing specifics. SM1350 series # #N+1 Figure 9. One-shot mode (serial select) ...
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... In one-shot melody mode, the output repeats the same melody while STN is LOW. When STN goes HIGH, the output continues until the end of the currently playing melody and then stops. STN Melody Output Note: Refer to the "TIMING DIAGRAMS" section to confirm melody timing specifics. SM1350 series #N+1 #N+2 #N+1 #N Figure 12 ...
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... Also, when one- shot melody output mode is retriggered, melody output restarts after the fast damping interval. STOP Melody Output Note: Refer to the "TIMING DIAGRAMS" section to confirm melody timing specifics. SM1350 series Figure 13. CT pulse mode output 0 ...
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... The maximum number of programmable tones is 16. Note that 2 similar tones which have different envelope settings are considered to be separate tones. Built-in ROMs The built-in ROMs comprise 3 types of ROM containing musical score data, and parameter ROM containing envelope and jump data. SM1350 series Envelope Synthesize Envelope Figure 16. ...
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... There are 12 note rhythm values and 13 rest rhythm values that can be used to construct a melody. Also more notes can be combined using ties or slurs. Table 2. Rhythm values Symbol Note Rest − Note Symbol 3 3 Rest SM1350 series NIPPON PRECISION CIRCUITS INC.— ...
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... MELODY OUTPUT Figure 17. One-shot mode (standby to melody start) t STW STN STOP CH2 MODE Melody #M Output BUSYN ENDN OSC Figure 18. One-shot mode (retrigger to melody stop) SM1350 series t STW t XST CH1 t t DAST t STPW # PYST CH2 # ...
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... MODE BUSYN Melody Output Figure 19. Level hold mode (standby to melody start) STN # CH3 Melody #M Output BUSYN ENDN OSC Figure 20. Level hold mode (retrigger to melody stop) SM1350 series t XST CH1 DAST t CH2 #N t BYEN t EDST #N t ...
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... MODE BUSYN Melody Output Figure 21. Level hold mode (standby to melody start) STN Melody #N Output BUSYN t EDW ENDN OSC Figure 22. Level hold mode (repeating melody to melody stop) SM1350 series t XST CH1 DAST t CH2 #N t BYEN t EDW ...
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... STN BUSYN CT ICN 0.1µF Note that circuit constants are reference values. Parameter Pin name 1 Melody output circuit 2 3 STOP MODE SM1350 series XT XTN 4MHz T3N T2N T1N NSBN MSB SP SPN VOL VSS 200kΩ Measurement state ...
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... Customers are requested not to export or re-export, directly or indirectly, the Products to any country or any entity not in compliance with or in violation of the national export administration laws, treaties, orders and regulations. Customers are requested appropriately take steps to obtain required permissions or approvals from appropriate government agencies. SM1350 series NIPPON PRECISION CIRCUITS INC. 4-3, Fukuzumi 2-chome, Koto-ku, ...