TDA9210 查看數據表（PDF） - STMicroelectronics

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TDA9210

150 MHz PIXEL VIDEO CONTROLLER FOR MONITORS

STMicroelectronics 

TDA9210

Figure 5. DC Coupling

TDA 9210

Pins 14-16-18

OUTPUT 1,2,3 DC LEVEL

0.5V to 2.5V (8bits)

CRT

Driver

CRT

4.12 - Stand-by Mode

The TDA9210 has a stand-by mode. As soon as

the VCC power (Pin 17) gets lower than 3V (typ.),

the device is set in stand-by mode whatever the

voltage on analog VCCA (Pin 7) is. The analog

blocks are internally switched-off while the logic

parts (I2C bus, power-on reset) are still supplied.

In stand-by mode, the power consumption is be-

low 20 mW.

4.13 - Serial Interface

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

slave address of TDA9210 is DC hex.

A6 A5 A4 A3 A2 A1 A0 W

1

1

0

1

1

1

0

0

The host MCU can write into the TDA9210 regis-

ters. Read mode is not available.

Figure 6. I2C Write Operation

In order to write data into the TDA9210, after the

“start” message, the MCU must send the following

data (see Figure 6):

– the I2C address slave byte with a low level for the

R/W bit,

– the byte to the internal register address where

the MCU wants to write data,

– the data.

All bytes are sent with MSB bit first. The transfer of

written data is ended with a “stop” message.

When transmitting several data, the register ad-

dresses and data can be written with no need to

repeat the start and slave addresses.

4.14 - Power-on Reset

A power-on reset function is implemented on the

TDA9210 so that the I2C registers have a deter-

mined status after power-on. The Power-on reset

threshold for a rising supply on VCCA (Pin 7) is

3.8 V (typ.) and 3.2V when the VCC decreases.

SCL

SDA

Start

I2C Slave Address

W

A7 A6 A5 A4 A3 A2 A1 A0

D7 D6 D5 D4 D3 D2 D1 D0

ACK

Register Address

ACK

Data Byte

ACK Stop

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