Data Input Procedure

The LC75281E is controlled by inputting the stipulated serial data to the CE, CL, and DI pins. The data consists of

28 bits, of which 8 bits are the address and 20 bits are the data.

Note *:

The 2

× command doubles the center frequency of all bands. When setting this bit to 1, applications must either enter the band data for one of the

bands in bits D1 to D19, or must set both bits D4 and D5 to 0, in which case all other bits are ignored.

Normal

2

×

: Low (Peaking)

: Low mid (Peaking)

: High mid (Peaking)

: Low (Shelving)

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LC75281E

Address code

Normal/2

Channel selection

Center frequency setting

Gain setting

Q setting

Left and right

Band selection and

peaking/shelving selection

≤