LC75106V-TLM-H 查看數據表（PDF） - ON Semiconductor

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LC75106V-TLM-H

Digital Echo LSI with Built-in Mic Amplifier

ON Semiconductor 

LC75106V

Control Data Structure (Serial Data Input)

The setting of LC75106 can be controlled with I2C Bus.

All the settings can be controlled by I2C Bus at the stereo signal internal connection modes (CS terminal = “H”), and all the

volumes except the stereo source control can be set at the stereo signal outside connection modes (CS terminal = “L”).

The karaoke system can be made from external resistance by doing I2C Bus Line in Pull Up at the stereo signal outside

connection modes.

1) The explanation of I2C Bus

I2C Bus (Inter IC Bus) is the bus system which the PHILIPS company developed.

It does controls such as the start, the stop by two control signals of SDA (Serial Data) and SCL (Serial Clock).

The output of each signal is open drain and forms out of wired OR.

SCL

SDA

S

ACK

ACK

P

S; Start condition/P; Stop condition/ACK; Acknowledge

Data is transmitted in the MSB first.

1 unit is composed of 8 bits and ACK is put back from the slave to confirm.

Slave IC reads data with rising edge of SCL.

Master IC changes data by falling edge in SCL.

2) The control register

Table1 Slave Address

MSB

LSB

0

0

1

1

1

0

0

0

Note; LC75106 is reception exclusive use. It depends and it uses LSB by the “0” fixation.

• I2C data

Function

Stereo line select/Mic1 volume

Mic2 volume/Test

Delay time/ECHO volume

Feed back volume

Sub Address

BINARY

HEX

0000 0001

01

0000 0010

02

0000 0011

03

0000 0100

04

D7

LD2

M2D3

0

0

D6

LD1

M2D2

DT2

FB2

D5

LD0

M2D1

DT1

FB1

Data

D4

D3

KEY

M1D3

M2D0 TEST3

DT0

0

FB0

0

D2

M1D2

TEST2

ED2

0

D1

M1D1

TEST1

ED1

0

D0

M1D0

TEST0

ED0

0

No. A2153-10/15

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