LC75055PE-6158-H Просмотр технического описания (PDF) - ON Semiconductor

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LC75055PE-6158-H

Car Audio DSP

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LC75055PE

Audio output Function

Digital audio output

LC75055 has the digital output function of up to four systems. The digital output is fixed with IIS24bit/64fs format.

(1) IIS output format (DSP processing)

1) Pin Name

IISO_BCLK, IISO_LRCK, OUT_SEL1, OUT_SEL2, OUT_SEL3,

IIS_SUB1(*1), IIS_SUB2(*1), IIS_SUB3(*1)

2) Format

IIS MODE

3) Mode

MASTER mode

4) Bit length

24bit

5) BCLK Frequency 64fs

(*1) As for the pin of IIS_SUB1/2/3, input or output is selectable.

Timing Chart

LRCK

BCLK

DATA

LEFT CHANNEL

RIGHT CHANNEL

1BCL

123

MSB

n-1 n

LSB

1BCL

123

MSB

n-1 n

LSB

(2) Through output format

LC75055 has a digital through output function other than four above digital output. With this mode, input data are

output from the OUT_SEL1/2/3 terminal regardless of DSP processing. It is set from the outside which data are output

from these terminals.

1) Selectable data

2) Pin Assign

3) Format

IISI1_DATA, IISI1_LRCK, IISI1_BCLK, IISI2_DATA, IISI2_LRCK, IISI2_BCLK,

IISI3_DATA, IISI3_LRCK, IISI3_BCLK, IISI4_DATA, IISI4_LRCK, IISI4_BCLK,

IIS_SUB1(*1), IIS_SUB2(*1), IIS_SUB3(*1)

OUT_SEL1 : DATA

OUT_SEL2 : LRCK

OUT_SEL3 : BCLK

As for the IIS output, an input signal is just output. When it is used by the through output,

there are not the rules such as formats in particular.

(*1) It is only on the condition that IIS_SUB1/2/3 is used as input.

No.A2168-20/26

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