LC75055PE(2014) Просмотр технического описания (PDF) - ON Semiconductor

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Компоненты Описание

производитель

LC75055PE
(Rev.:2014)

Car Audio DSP

ON Semiconductor 

Audio input Function

LC75055PE

(1) Digital audio input

LC75055 has 4ch sampling rate converter as digital audio input, and Implement an independent selector circuitry

every channel.

(2) Digital input format

1) Pin Name

2) Mode

3) Format

4) Bit length

5) BCLK Frequency

6) Input fs

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)

MASTER MODE, SLAVE MODE

IIS MODE, LEFT JUSTIFIED MODE, RIGHT JUSTIFIED MODE (*2)

16bit, 20bit, 24bit (*2)

max 64fs (selectable from 32fs, 48fs, 64fs)

8kHz to 96kHz (Internal automatic distinction)

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

(*2) These modes can be set independently in IIS1 and IIS2. The setting method is shown in software specifications.

(3) IIS MODE input timing

LRCK

BCLK

DATA

LEFT CHANNEL

RIGHT CHANNEL

1BCL

123

MSB

n-1 n

LSB

1BCL

123

MSB

n-1 n

LSB

(4) LEFT JUSTIFIED MODE Input Timing

LRCK

BCLK

DATA

RIGHT CHANNEL

12 3

MSB

n-1 n

LSB

LEFT CHANNEL

123

MSB

n-1 n

LSB

(5) RIGHT JUSTIFIED MODE Input Timing

LRCK

BCLK

DATA

RIGHT CHANNEL

123

MSB

n-1 n

LSB

LEFT CHANNEL

123

MSB

n-1 n

LSB

(6) Combination of IIS Input/Output

About IIS application pin, the following configurations are enabled.

• 4 independent input and 4 output

• 5 independent input and 3 output

• 3 independent input and 3 multi-channel input and 3 output

The setting method is shown in software specifications.

No.A2168-16/26

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