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OVERVIEW
The SM1350 series are single-chip high tone quality melody ICs, fabricated using NPC’s Molybdenumgate 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
■ 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
■ Sound Generator Functions
• DWS (dual wave synthesis) sound generators
• 4 simultaneous sounds for 4 tones
• G2 to F#7 note range
• 16-tone programmable
■ 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
■ Control Signal Outputs
• BUSYN signal LOW during melody output
• CT signal output for external control
■ 2.4 to 5.5 V supply voltage
■ Package
• 24-pin SSOP (SM1350×××)
■ Molybdenum-gate CMOS -
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Datasheet
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- Datasheet: Download SM1350-ABRM-FT
- Chipdatas Part: CD89-SM1350-ABRM-FT
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- Last Updated: 2024/09/28 19:27 +0800
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