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Archives for March, 2010

1000 mW Audio Amplifier Circuit using LA4190

1000 mW Audio Amplifier Circuit using LA4190

Whole House FM Transmitter

Whole House FM Transmitter If the whole house FM transmitter, it must use this FM Transmitter circuit

LEVEL METER DRIVER

7 DOT LEVEL METER DRIVER Audio circuit using KA2288 7 DOT LEVEL METER DRIVER circuit using KA2288 The KA2288 is a monolithic integrated circuit consisting of 7-dot LED level meter drives.  KA2288 employs a low noise comparator which provides 10dB lower noise in the LW, MW band than the previously mentioned LED drivers. FEATURES LED […]

Remote Control Transmitter circuit

Infrared Remote Control Transmitter circuit using LC7461M IC Infrared Remote Control Transmitter IC using LC7461M Functions 32 3 functions keys 13-bit custom codes Operating supply voltage range Vdd=1.8 to 3.6V Supply current at the standby mode Idd=1uA or less Double-press operation keys (no priority given) On-chip oscillator (ceramic resonator : connected externally) Features The custom […]

Digital Dip Switch Circuit Diagram

Digital Dip Switch Circuit Diagram using DS3904

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