R2A15906SP

PRELIMINARYsoNmoetipcear;aTmheitsriicslnimotitasfairnealsuspbejecciftitcoatciohnan. ge. CONFIDENTIAL R2A15906SP DIGITAL ECHO WITH MIC MIXING AMP DDISISCCRRIPIPTTIOIONN The R2A15906SP is a CMOS IC that has a microphone peripheral circuit and an echo generation circuit for karaoke use, on a single chip. FFEEAATTUURREESS Package High-performance digital echo circuit using 44-Kbit RAM A mic amplifier with an ALC makes it possible to handle overload input, and the ALC operating voltage can be externally set to the desired value. Built-in mic volume, echo volume, and feedback volume Internal mic mixing amplifier Outline 28Pin SOP 1.27mm pitch The clock has an internal current control-type oscillation circuit, and the generation of unnecessary oscillation can be prevented because the clock does not affect anything external to the unit. Internal Auto Reset circuit that functions when the power supply is turned on. MIC Volume, Echo Volume, and Feedback Volume are controlled by I2C Bus or DC control. (Delay Time is only I2C Bus ) 5 V single power supply RREECCOOMMMMEENNDDEEDDOOPPEERRAATTININGGCCOONNDDITITIOIONN Supply voltage …… VCC = 5.0V (typ) SSYYSSTTEEMMCCOONNFFIGIGUURRAATTIOIONN Lch Input Rch Input KEY CONTROL MIX MIX Lch Output Rch Output MIC MIX MIC VOL ALC ECHO ECHO VOL MIX FB VOL Delay Output 2006/05/15 R2A15906SP ver.C (1/14) PRELIMINARYsoNmoetipcear;aTmheitsriicslnimotitasfairnealsuspbejecciftitcoatciohnan. ge. CONFIDENTIAL R2A15906SP DIGITA...