Data Sheet

-13-
About Your E-Blox
®
Circuit Blox™ Parts
The blue level blocks (100 & 200) are non-conductive
and just used as building blocks.
A ber optic tree (40) is used with the LED to enhance
the light effects.
The speaker (93) converts electricity into sound. It does this
by using the energy of a changing electrical signal to create
mechanical vibrations (using a coil and magnet similar to
that in the motor). These vibrations create variations in air
pressure which travel across the room. You “hear” sound
when your ears feel these air pressure variations.
Some types of electronic components can be super-
miniaturized, allowing many thousands of parts to t into
an area smaller that your ngernail. These “integrated
circuits” (ICs) are used in everything from simple
electronic toys to the most advanced computers.
The FM radio (24) contains an integrated FM radio circuit.
Refer to the gure below for the pin-out description:
The power amplier IC (14) block is a module
containing an integrated circuit amplier and supporting
components that are always needed with it. A description
of it is given here for those interested:
The three-in-one (11) modules contain specialized
sound-generation ICs and other supporting components
(resistors, capacitors, and transistors) that are always
needed with them. This was done to simplify the
connections you need to make to use them. The pin
descriptions are given here for those interested, see the
projects for connection examples:
FM Radio:
(+) - power from batteries
(–) - power return to batteries
RF - antenna input
VOL - volume adjust connection
CH+ - tune up
CH– - tune down
OUT-L - left channel output connection
OUT-R - right channel output
See project #116 for
an example of proper
connections.
Power Amplier IC:
(+) - power from batteries
(–) - power return to batteries
OUT-L - left channel output connection
OUT-R - right channel output
IN-L - left channel input
IN-R - right channel input
Three-in-One:
T1, T2 - control inputs
SP1 - speaker – connection
SP2 - speaker + connection
I/O1 - music select
I/O2 - space sound select
(+) - power to batteries
(–) - power return to batteries