lc75100m Sanyo Semiconductor Corporation, lc75100m Datasheet
lc75100m
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lc75100m Summary of contents
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... Ordering number : ENA1021 LC75100M Overview The LC75100M is a digital echo IC that incorporates a microphone amplifier and is ideal for use in minicompo and other audio systems. Functions • Digital echo IC incorporating a microphone amplifier. Specitications Absolute Maximum Rating 25° Parameter Maximum supply voltage ...
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... Vocal removal rate VC Package Dimensions unit : mm (typ) 3263 15 0.8 0.3 (0.8) SANYO : MFP36SDJ(375mil) LC75100M Pin Conditions V DD OSC OSC Ex.R=22kΩ Mic-AMP NF Ex.R=0Ω Mic-AMP NF Ex.R=6.2kΩ Mic Gain=+36dB, THD=1%, ALC=OFF Mic Gain=+36dB, ALC=OFF =-10dBV Mic Gain=+36dB, ALC=ON =-10dBV =0dBV ...
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... MICNF1 MICOUT1 MICIN2 ALC2 MICNF2 MICOUT2 AAF1 AAF2 AAF3 GND LC75100M IN1 LC75100M 10 27 IN2 LCHIN RCHIN FILTER SELOUT SELIN RCHOUT LCHOUT ...
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... Selecter (Lch Mono) (Rch Mono) (L+R) (Vocal Cut) Mic AMP ALC Control Voltage ALC Mic Input1 Mic Input2 Analog GND LC75100M Key Control LC75100M + + Digital ECHO FEED Back Volume Rch output Lch output LPF + + + ECHO Feed back ...
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... AAF1 1 AAF2 25 LPF1 26 LPF2 LC75100M Internal Equivalent Circuit ALC detection voltage setting pin Mic signal input 1 Mic signal input 2 Auto level control pin 1 Auto level control pin 2 Mic feedback signal input pin 1 Mic feedback signal input pin 2 Mic signal output pin 1 ...
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... DI(SDA) 0V/3.3V 19 OSC 0V/3.3V 20 DC3V 3.3V 21 VREF 1 1 LC75100M Internal Equivalent Circuit AAF input pin 3 Analog GND CCB CE pin CCB CL pin/I CCB DI pin/I Oscillator circuit adjustment pin Power supply for logic block Internal reference voltage A/D pin Description 2 C bus SCL pin 2 C bus SDA pin Continued on next page ...
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... SELIN 1 SELOUT 1 FILTER 1 RCHIN 1 LCHIN LC75100M Internal Equivalent Circuit 34 35 Description A/D pin D/A pin ECHO signal output pin Lch output Rch output Selector input pin Selector output pin Filter input pin 1 Rch input pin Lch input pin Supply voltage No ...
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... Control Data (Serial Data Input) Format Various settings of the LC75100M can be configured with a CCB bus, set and hold the CE pin at low level. (1) CCB control 1 Control register • IN1 mode Address → • IN2 mode Address → ...
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... The slave IC reads the data on the rising edge of SCL. The master IC changes the data on the falling edge of SCL. 1 Control registers • Slave Address MSB Note: The LC75100M can be used in the receive only mode if the LSB is set to 0. LC75100M tEL tES ...
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... Determines the path that uses the external key control. (2) External key control enable/disable key • Determines the gain of mic inputs 1 and 2. (3) Mic volume gain data M1D2 M1D1 M1D0 M2D2 M2D1 M2D0 LC75100M HEX LD2 LD1 LD0 02 0 M2D2 M2D1 ...
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... ED2 ED1 ED0 • Determines the volume of the echo feedback. (6) Feedback volume gain data FB2 FB1 FB0 • Used for testing the IC. (7) IC test data TEST3 TEST2 TEST1 TEST0 LC75100M Description DT2 DT1 DT0 OFF 75ms 100ms 125ms ...
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... Recommended Circuit (Mic-Gain=-36dB) [CCB Control Control] LC75100M No.A1021-12/14 ...
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... Setting the mic AMP gain • R1=562.3kΩ, R2=1.0kΩ [When Mic Gain=45dB] R4=(R1/Mic Gain)-R2 =562.3k/177.8-1k ≈2.2kΩ (2) Determining the π (R1 1k)C1 (3) Setting the ALC operating voltage 1 +1.41V 1 1 -1.41V 0V LC75100M ALC VREF 3 1.0Vrms VALC = 1 -1.41V No.A1021-13/14 ...
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... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of March, 2008. Specifications and information herein are subject to change without notice. LC75100M PS No.A1021-14/14 ...