MIDI BPM/Clock Generator

by noisevoid.
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2 layer board of 2.96x1.58 inches (75.16x40.16 mm).
Shared on June 5th, 2016 06:27.

This is a module for a tiny modular synth i am making. This module is a MIDI master clock generator with approximately 20 to 300 BPM. Can use and external 8-120Hz pulse as BPM source. Can also use internal BPM pulse as output.

Reference, Value, Footprint

  • U3,4020,Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm

  • U1,74LS132,Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm

  • X1,1Mhz,Oscillators:OSC_DIP8

  • C3,10u,Capacitors_SMD:C_0805

  • U2,LM555N,Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm

  • C2,820n,Capacitors_SMD:C_0805

  • C1,10n,Capacitors_SMD:C_0805

  • R2,10k,Resistors_SMD:R_0805

  • RV1,100k,Potentiometers:Potentiometer_Alps-RK163-single_15mm

  • R1,30k,Resistors_SMD:R_0805

  • P1,CONN_01X02,Socket_Strips:Socket_Strip_Angled_1x02

  • U4,74LS151,Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm

  • P2,DIN_5,Connect:SDS-50J

  • R3,220,Resistors_SMD:R_0805

  • R4,220,Resistors_SMD:R_0805

  • C4,10u,Capacitors_SMD:C_0805

  • C7,10u,Capacitors_SMD:C_0805

  • C6,10u,Capacitors_SMD:C_0805

  • C5,10u,Capacitors_SMD:C_0805

  • C8,10u,Capacitors_SMD:C_0805

  • U5,LM7805CT,TO_SOT_Packages_SMD:SOT-223

  • U6,74LS132,Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm

  • P3,CONN_01X01,Pin_Headers:Pin_Header_Straight_1x01

  • SW1,SPST,Buttons_Switches_ThroughHole:SW_SPDT

  • R6,5k,Resistors_SMD:R_0805

  • R5,5k,Resistors_SMD:R_0805

  • R7,5k,Resistors_SMD:R_0805

  • W1,TEST_1P,Measurement_Points:Test_Point

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