lc7527e Sanyo Semiconductor Corporation, lc7527e Datasheet
lc7527e
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lc7527e Summary of contents
Page 1
... One touch memory setting recall allows users to select desired frequency characteristics for each track. — Since the LC7527E includes band filter amplifiers on chip, capacitors are the only external components required in application systems. — Minimal switching noise due to the use of a Silicon gate CMOS process. • ...
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... Input low level voltage Input amplitude voltage Clock pulse width Setup time Hold time Operating frequency Electrical Characteristics 25°C, V Parameter Total harmonic distortion Crosstalk Setting error Current drain Analog switch off leakage current LC7527E = Symbol Conditions V -V max ...
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... Electrical Characteristics Test Circuit Pin Assignment LC7527E No. Unit (F) C29, C30, 10 µ C31, C32 No. Unit (Ω) R1, R3, 7.5 k R4 No. Unit (F) C1, C28 0.94 µ C2, C27 0.034 µ C3, C26 0.377 µ C4, C25 0.0133 µ C5, C24 0.1506 µ C6, C23 5390 p C7, C22 0.057 µ ...
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... LC7527E Circuit type Left channel f1 band control block External capacitor connections Right channel f1 band control block External capacitor connections Left channel f2 band control block External capacitor connections Right channel f2 band control block External capacitor connections Left channel f3 band control block ...
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... LC7527E Circuit type Power supply: Analog ground The impedance of the pattern connected to these pins should be kept as low as possible. LVref and RVref are not connected to the V Left channel audio signal input IN1 is normally connected to an operational amplifier inverting input ...
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... Equivalent Circuit Internal Equivalent Circuit (for a single band) LC7527E No. 4466-6/11 ...
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... Data Input The LC7527E is controlled by inputting stipulated data using the CE, CL, and DI pins. The data has a total of 20 bits, of which eight are address and 12 are data. LC7527E No. 4466-7/11 ...
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... Sample Application Circuit Note all possible, use bipolar capacitors for all capacitors that do not have a polarity specified. *1. A resistor of about 100 kΩ is recommended if impulse noise (popping sounds problem. LC7527E Unit (resistance: , capacitance: F) No. 4466-8/11 ...
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... External Component Value Calculations The external capacitors required for each band in the LC7527E are the structural elements in semiconductor inductors (simulated inductors). The remainder of this section presents the equivalent circuits and the formulas used to determine the center frequencies. 1. Semiconductor Inductor Equivalent Circuit The LC7527E provides circuits with differing constants for the low and high bands ...
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... LC7527E No. 4466-10/11 ...
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... The states of the internal analog switches are undefined when power is first applied. System output should be muted until control data has been sent to the LC7527E prevent the high frequency digital signals associated with data transfers over the CL, CI, and DI pins from generating interference in the analog signals, either guard those lines with a ground pattern or use shielded cables ...