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Table of Contents
Summary of Contents for Freedom Enterprise Inter Continental Capacitive Ballistic Synth
- Page 2 By reading this manual you’ll become familiar with the IC how to use it and how to make the most of it. Good luck, and have a great experience with your brand-new synth from Freedom Enterprise.
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Page 3: Table Of Contents
CONTENTS Assembly 4 Cv And Gate 12 Features And Controls 13 A Warning About Electrostatic Discharges 4 DCO (Digitally Controlled Oscillator) 13 Bom 5 DCF (Digitally Controlled Filter) 13 User Interface 7 DCA (Digitally Controlled Amplifier) 14 Main Pcb 7 Modulation 14 Side Panels 8 Envelope Generator 14... -
Page 4: Assembly
ASSEMBLY Putting together the IC BS is a simple task if you’re familiar with soldering electronic kits. You’ll need a #2.5 hex wrench, soldering iron, tin solder, flux and wire clipper. A WARNING ABOUT ELECTROSTATIC DISCHARGES These instructions will guide you through the whole process. Electrostatic discharges, or ESD, can occur when two electrically charged objects, such as the human body and an electronic device, come in contact with each other. -
Page 5: Bom
Comment Description Designator 18650 Battery Holder Battery Charger 0.1uF Ceramic Capacitor C1, C2, C6, C8, C9, C11,C23 220uF USW0J221MDD1TP C3, C5 0.047uF Film Capacitors .047uF 63V 10% 10uF USW1C100MDD C7, C20, C21, C22 47uF USW0J470MDD1TE C10, C17 3300pf Film Capacitors 3300 pF 100 VDC 5% 0.1uF Film Capacitors 0.1uF 63V 5% C13, C14... - Page 6 Comment Description Designator 10K Ω Resistor 1/4 R4, R5, R8, R9, R16 15K Ω Resistor 1/4 R6, R10 5.6K Ω Resistor 1/4 1K Ω Resistor 1/4 R11, R14, R15 470 Ω Resistor 1/4 3.9K Ω Resistor 1/4 SPST Switch_Vertical SW1, SW2 Header 1X8 M 2.54mm CN1, CN2...
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Page 7: User Interface
USER INTERFACE Start by snaping in the nine potentiometers in place. Follow the BOM to ensure the correct values. Follow this by placing the power switch and solder all the components. The eight pin male headers will be assembled later. MAIN PCB Start by soldering the Li-Ion Charger and DC Booster modules first. -
Page 8: Side Panels
Notice that the electrolytic capacitors and the LED have polarities and must be installed in the correct orientation according to the silkscreen on the Main PCB. Solder these components and trim the leads. Insert the IC sockets in their correct orientation. Solder the sockets and only then install the provided ICs. -
Page 9: Interface
INTERFACE Figure 1. User Interface. -
Page 10: Booting Up
BOOTING UP Figure 2. Preset example. Insert a Li-Ion 18650 cell in the battery holder with the correct polarity. Connect a micro-USB cable and a red led should light up on the Li-ion charger indicating the battery is charging. Flip the power switch and the LED in the middle of the Main PCB should light up, as well as a red LED on the DC Booster. -
Page 11: Modes Of Operation
MODES OF OPERATION Monophony and Polyphony This synth contains two different modes that can be switched by the user during boot up. In Monophony mode, only one note can be played at the time, however the two built in DCOs are used to create a ring modulator. This is the default boot up mode. In Polyphony mode, two notes can be played at the same time. -
Page 12: Cv And Gate
Figure 4. Polyphony block diagram. CV and Gate The keyboard generates a CV and Gate signals that can be used to control other equipment. The CV follows the 1V/Octave standard. This is the default boot up mode. To use the CV and Gate as inputs, thereby allowing other equipment to control the BS, press and hold the SW2 switch during power up. -
Page 13: Features And Controls
FEATURES AND CONTROLS DCO (DIGITALLY CONTROLLED OSCILLATOR) The oscillator is the primary component that generates the sound. Its frequency is controlled through the keyboard, while the pitch knob controls the octave. The wave selector knob switches between various waves being generated such as Sine, Triangle, Sawtooth and Square. -
Page 14: Dca (Digitally Controlled Amplifier)
DCA (DIGITALLY CONTROLLED AMPLIFIER) The output amplitude of the audio signal is controlled through the DCA, following the envelope generator. MODULATION When in Monophony mode, the two internal DCO are used to create a ring modulator. The speed rate of the Ring modulator is controlled through the Modulation knob. ENVELOPE GENERATOR The envelope generator creates an envelope to control the previous circuits. - Page 15 Attack: When a key is pressed, the attack knob dictates the speed at which the envelope rises from 0 to 100. At full CCW, the rise time is instantaneous. At full CW, the envelope rises slowly from 0 to 100. Figure 5.
- Page 16 Release: The time it takes for the envelope to go from 100 to 0 when a key is released is controlled with the release knob. At full CCW, the envelope will decay to 0 instantly when a key is released. At near full CW, the envelope will slowly decay once the key is released.
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Page 17: Specifications
SPECIFICATIONS Dimensions in Milimeters Power (W/O Side Panels) Width 3.7 V @ 25 mA 1860 Li-Ion Cell Height Micro USB charge port Length Connectivity Sound 0-5V, 1V/Octave CV 35KHz 0-5V Gate... -
Page 18: Creative Commons License
The PCBs layout, artwork and names are the property of Freedom Enterprise and may not be cloned or replicated for commercial purposes. Read the full license at creativecommons.org/ licenses/by-sa/4.0. -
Page 19: Warranty
WARRANTY Fully assembled versions of this product are covered by warranty for one year following the date of purchase. This warranty covers any defect in the manufacturing of this product, such as assembly errors or faulty components. This warranty does not cover any damage or malfunction caused by incorrect use, such as, but not limited to, power cables connected backwards, excessive voltage levels, or exposure to extreme temperature or moisture levels. - Page 20 OWNER’S MANUAL Revision A December 2020 Written by Pedro Silva Art by Seni...
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