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SM1350 Datasheet(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM1350 Datasheet(HTML) 1 Page - Nippon Precision Circuits Inc |
1 / 21 page SM1350 series NIPPON PRECISION CIRCUITS—1 NIPPON PRECISION CIRCUITS INC. High Tone Quality Melody LSI 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, up to a maximum of 16 melody blocks. There are 4 sound generators incorporated to produce 4 kinds of output tone controlled by 16-tone data, making these ICs ideal for mechanical clocks and similar applications where high tone quality output is demanded. FEATURES s Basic Functions • 4.0 MHz oscillator frequency • Power-save function - Oscillator stopped when no output - S0 to S3, MODE, LH pull-up resistors open • BTL or A-class outputs • Chattering prevention circuit (STN, STOP, S0 to S3) • 10-bit D/A converter s Sound Generator Functions • DWS (dual wave synthesis) sound generators • 4 simultaneous sounds for 4 tones • G2 to F#7 note range • 16-tone programmable s Melody Functions • Up to 16 programmable melodies (singly or in medleys) • 1024-step length (notes, rests, jumps, end codes) • Level hold/one-shot melody modes • Serial/binary (parallel) select modes • 4.8 to 605.6 tempo range in 127 steps • 12 rhythm values • Ties and slurs programmable s Control Signal Outputs • BUSYN signal LOW during melody output • CT signal output for external control s 2.4 to 5.5 V supply voltage s Package • 24-pin SSOP (SM1350 ×××) s Molybdenum-gate CMOS PINOUT(TOP VIEW) PACKAGE DIMENSIONS 24-pin SSOP (Unit: mm) ORDERING INFOMATION 3 3 3 3 D evice Packag e SM1350 ×××M 24pin SSOP VDD S0 S1 S2 S3 MODE LH XT XTN TO T3N T2N T1N MSBN STOP MSB STN BUSYN CT SP SPN VOL ICN VSS 1 12 13 24 0.7 0.8 0.36 0.10 10.20 0.30 10.05 0.20 0.15 + 0.1 − 0.05 010 0.50 0.20 |
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