lc75397e Sanyo Semiconductor Corporation, lc75397e Datasheet
lc75397e
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lc75397e Summary of contents
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... SANYO products described or contained herein. SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN LC75397E Features • Built-in buffer amplifiers reduce the number of external parts required. • Silicon gate CMOS process reduces the noise of built-in switch. • ...
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... With all controls flat overall O Current drain Input high level current I CL, DI, CE Input low level current I CL, DI, CE LC75397E = Symbol Conditions V max CL, DI R6, LTIN, RTIN, LVR1IN, V max IN RVR1IN, LVR2IN, RVR2IN, LVR3IN ...
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... Pin Assignment LC75397E Top view No. 6108-3/26 ...
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... Sample Application Circuit LC75397E No. 6108-4/26 ...
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... Control System Timing and Data Formats To control the LC75397E, specified sequences are required to be input through the pins CE, CL, and DI. Each sequence consists of 48 bits: an 8-bit address followed by 56 bits of data. 1. Address Code (B0 to A3) This product uses an 8-bit address code, and supports the same specifications as other Sanyo CCB serial bus products ...
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... Input gain control Bass and 4-band equalizer control LC75397E Operation + + + + +18 dB ...
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... LC75397E D29 D30 D31 D32 D33 ...
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... Continued from preceding page. Channel selection control Volume 1 control Volume 2 control Volume 3 control Test mode control These bits are for chip testing and must all be set application systems. LC75397E D28 D29 D30 D31 D32 ...
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... Equalizer inputs 4 RTIN 44 LF1C1 43 LF1C2 Connections for the resistors and capacitors that form the F1 band equalizer. 5 RF1C1 6 RF1C2 42 LF2C1 41 LF2C2 Connections for the resistors and capacitors that form the F2 band equalizer. 7 RF2C1 8 RF2C2 LC75397E Function Equivalent circuit Continued on next page. No. 6108-9/26 ...
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... Left channel volume output 3 31 LVR2OUT • Left channel volume output 2 30 LVR1OUT • Left channel volume output 1 18 RVR2OUT • Right channel volume output 2 19 RVR1OUT • Right channel volume output 1 LC75397E Function Equivalent circuit Continued on next page. No. 6108-10/26 ...
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... CL • Electronic volume control test pin. 22 TEST This pin must be held at the • Unused pins. These pins must either be left open connected LC75397E Function ( reduce power supply ripple SS SS potential. SS Equivalent circuit No. 6108-11/26 ...
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... Equivalent Circuit Diagram (1) Selector Control Block Right channel same as left Unit (resistance : k ) LC75397E No. 6108-12/26 ...
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... Bass control block internal equivalent circuit LC75397E The right channel is identical. Units (resistance No. 6108-13/26 ...
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... When providing boost, switches SW1 and SW3 are on, and when providing cut, switches SW2 and SW4 are on. In 0-dB mode (through), the 0-dB switch and switches SW2 and SW3 are on. (4) F3/F4 band equalizer block internal equivalent circuit LC75397E Right channel same as left Unit (resistance No. 6108-14/26 ...
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... Volume block internal equivalent circuit LC75397E Right channel same as left Unit (resistance No. 6108-15/26 ...
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... Test Circuits Total Harmonic Distortion LC75397E The left channel is identical Unit (capacitance : F) No. 6108-16/26 ...
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... Output Noise Voltage LC75397E The left channel is identical Unit (resistance : , capacitance : F) No. 6108-17/26 ...
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... Crosstalk LC75397E The left channel is identical Unit (resistance : , capacitance : F) No. 6108-18/26 ...
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... External Capacitor Calculations 1. Bass circuit The value of the external capacitor used by the LC75397E bass control can be calculated as shown in the example below. Sample calculation: For a center frequency Substitute the LC75397E internal resistors R1 and R2 shown below into the above formula. This allows the value of the capacitor calculated. ...
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... C = —————— = ——————————— = 0.0431 R1R2 2 (3) Determine Q. C · C · ————— · ————— = ———————— = 1.039 2C R1R2CC LC75397E = 10 dB +10dB = 10 dB. +10dB ) R1 2R2 51800 2 (3.162 – ...
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... Shelving characteristics (F4 band) Gains of ±10 dB (in 2-dB steps) with respect to a target frequency can be achieved by using an external capacitor C3 with a calculated according to the formula F shown below. LC75397E (F3 band) (F4 band) = 0.8 +10dB C2 (F) 0.021 µ 6663P 2117P 666P No ...
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... C = ———————————— ————— – R1 G/20 10 – —————————————— ( 7500 ) 2 17000 ———— – (2819) 3.16 – 1 4600 (pF) LC75397E No. 6108-22/26 ...
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... LC75397E dBV — attenuation Volume dBV — G Gain, dBV — G Gain, dBV — G Gain, No. 6108-23/26 ...
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... G Gain, % — THD distortion, harmonic Total LC75397E dBV — — THD distortion, harmonic Gain, Total No. 6108-24/26 ...
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... THD distortion, harmonic Total % — THD distortion, harmonic Total LC75397E % — THD distortion, harmonic Total No. 6108-25/26 ...
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... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of April, 1999. Specifications and information herein are subject to change without notice. LC75397E PS No. 6108-26/26 ...