NJU6052 데이터 시트보기 (PDF) - Japan Radio Corporation

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NJU6052

REMOTE CONTROL COMMANDER IC

Japan Radio Corporation  

NJU6052

(5-2) SENSOR DATA READ

The DATA terminal becomes output state by setting the REQ terminal to “1” after the command data

transmission. And the sensor data is read out, synchronizing with the SCK. The bit number corresponding to a

selected register is “1” and the others are “0”, as shown below.

FIGURE 3 SENSOR DATA READ (REV=0, PWM REGISTER4 selected)

REQ

SCK

DATA

B7

Command Data (Input)

01 2 3 4 5 6 7

Sensor Data (Output)

(5-3) SOFF and BRIGHT

By setting “1” at the SOFF bit, the luminance sensor control is disabled and the PWM duty is controlled by the

BRIGHT bits, as shown below.

TABLE 4 SOFF and BRIGHT

SOFF

BRIGHT

REV

0

-

0

000

001

010

1

011

100

-

101

110

111

PWM REGISTER

PWM REGISTER0

PWM REGISTER1

PWM REGISTER2

PWM REGISTER3

PWM REGISTER4

PWM REGISTER5

PWM REGISTER6

PWM REGISTER7

PWM REGISTER0

PWM REGISTER1

PWM REGISTER2

PWM REGISTER3

PWM REGISTER4

PWM REGISTER5

PWM REGISTER6

PWM REGISTER7

Note 1) When SOFF=”0”, luminance sensor control is enabled and PWM REGISTER is selected according to SENS voltage.

Note 2) For the information on the relation between SENS voltage and PWM REGISTER, refer to “DC ELECTRICAL

CHARACTERISTICS”.

(5-4) STBY

By setting “1” at the STBY bit, the NJU6052 goes into the standby mode, as follows.

- DC/DC converter, oscillator, reference voltage generator, and power supply for sensor are halted.

- The contents of PWM REGISTER are maintained.

- Luminance sensor control circuit is initialized.

-8-

Ver.2004-02-26

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