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Backlighting system controller Broadcom ADJD-J823 with CIE Yxy input color format and 12 bit PWM resolution

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Backlighting system controller Broadcom ADJD-J823 with CIE Yxy input color format and 12 bit PWM resolution

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Operating Temperature : 0℃~+70℃

Interface : I2C

Measurement Type : Color Recognition

Voltage - Supply : 2.5V~3.6V

Photoperceptivity : 10klx

Description : I2C 2.5V~3.6V Ambient Light, IR, UV Sensors RoHS

Mfr. Part # : ADJD-J823

Model Number : ADJD-J823

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Product Overview

The Agilent ADJD-J823 is a CMOS mixed-signal integrated circuit designed as an optical feedback device for RGB LED-based backlighting systems. It features integrated RGB photosensors, an analog-to-digital converter, color data processing logic, and a 12-bit PWM output generator. This controller samples light output, processes color information, and adjusts RGB LED output to achieve target colors, ensuring color stability over time and temperature. It supports color specification via the CIE color space through a serial interface and offers adjustable light sensitivity. The device is ideal for LCD backlighting applications.

Product Attributes

  • Brand: Agilent
  • Model: ADJD-J823

Technical Specifications

Feature Value Units
Interface 100kHz serial interface
Input color format CIE Yxy
Output PWM frequency (nominal) 6.35 kHz
Output PWM resolution 12 bits
Digital Supply (nominal) 2.6 V
Analog Supply (nominal) 2.6 V
Free air operating temperature 0 to 70 C
Digital supply voltage (DVDD) 2.5 to 3.6 V
Analog supply voltage (AVDD) 2.5 to 3.6 V
Output current load high (IOH) 3 mA
Output current load low (IOL) 3 mA
Input voltage high level (VIH) 0.7VDDD VDDD
Input voltage low level (VIL) 0 to 0.3VDDD V
Power supply ramp period (tVDD_RAMP) 100 ms
Storage temperature (TSTG_ABS) -40 to 85 C
Digital supply voltage (VDDD_ABS) -0.5 to 3.7 V
Analog supply voltage (VDDA_ABS) -0.5 to 3.7 V
Input voltage (VIN_ABS) -0.5 to VDDD+0.5 V
Solder Reflow Peak temperature (TL_ABS) 235 C
Human Body Model ESD rating (ESD HBM_ABS) 2 kV
Output voltage high level (VOH) VDDD-0.8 to VDDD-0.4 V
Output voltage low level (VOL) 0.2 to 0.4 V
Dynamic supply current (IDD_DYN) 9.4 to 14 mA
Static supply current (IDD_STATIC) 2.7 to 6 mA
Sleep-mode supply current (IDD_SLP) 0.2 to 15 uA
Input leakage current (ILEAK) -10 to 10 uA
Internal clock frequency (fCLK) 16 to 38 MHz
Sensor operating detection range (EV) 800 to 10000 Lux
SCL clock frequency (fscl) 0 to 100 kHz
START condition hold time (tHD:STA) 4 s
Data hold time (tHD:DAT) 0 to 3.45 s
SCL clock low period (tLOW) 4.7 s
SCL clock high period (tHIGH) 4.0 s
Repeated START condition setup time (tSU:STA) 4.7 s
Data setup time (tSU:DAT) 250 ns
STOP condition setup time (tSU:STO) 4.0 s
Bus free time (tBUF) 4.7 s
Slave address 0x58 (7-bits)

2411272332_Broadcom-ADJD-J823_C19539504.pdf


Cheap Backlighting system controller Broadcom ADJD-J823 with CIE Yxy input color format and 12 bit PWM resolution for sale

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