KA2504 데이터 시트보기 (PDF) - Samsung

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KA2504

I2C BUS CONTROLLED R/G/B VIDEO AMPLIFIER

Samsung 

KA2504

I2C BUS COTROLLED R/G/B VIDEO AMPLIFIER

3. Brightness Adjustment (5-Bits)

The Brightness adjustment controls to add the same black level (pedestal) to the 3-channel R/G/B signals by

I2C bus.

4. Cut-Off Adjustments (8-Bits × 3)

These Adjustments are used to adjust the white balance of the each channel controlled by the I2C bus.

5. Cut-Off Brightness Adjustment (8-Bits)

The Cut-Off Brightness Adjustment controls the 3-channel Cut-Off by I2C bus.

6. Slave Address

The 2-wire serial interface is an I2C BUS interface.

The Slave address of the KA2504 is DCH (hexadecimal)

Bit 8

1

Bit 7

1

Bit 6

0

Bit 5

1

Bit 4

1

Bit 3

1

Bit 2

0

Bit 1

0 (W)

7. Data Transfer

All Bytes are sent MSB (Most Significant Bit) bit first and the write data transfer is closed by a STOP.

The MCU can write data into the KA2504 registers.

To write data into the KA2504, after a start, MCU must send :

- The I2C address slave byte with a low level for R/W bit (bit 1)

- The byte of the internal register address where the MCU wants to write data. (SUB Address)

- The Data sent to slave

- Stop

- 1-Byte Data Transfer

STA

Slave ADRS W A SUB ADRS A

DATA

A STO

- Multi-Data Transfer

STA Slave ADRS W A Sub ADRS

A

DATA

A Sub ADRS

A

DATA

A ---

---

Sub ADRS

A

DATA

A STO

- Automatic increment

The automatic increment feature of the slave address enables a quick slave receiver initialization within one

transmission by the I2C BUS controller.

STA Slave ADRS W A Auto ADRS A DATA (00H) A DATA (01H) A DATA (02H) A - - -

- - - DATA (07H) A DATA (08H) A STO

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