max5679 Maxim Integrated Products, Inc., max5679 Datasheet
max5679
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max5679 Summary of contents
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... The MAX5679 includes a power-on reset (POR) function that configures all 14 programmable gamma outputs to predetermined levels upon initial power-up. The MAX5679 is available in a 5mm x 5mm, 32-pin TQFN package and is specified over the -40°C to +85°C extended temperature range. TFT-LCD Panels for Flat Screen TVs ...
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Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference ABSOLUTE MAXIMUM RATINGS AV to GND..........................................................-0.3V to +22V GND ........................................................-0.3V to +6.0V DD SET to GND ...........................................................-0.3V to +6.0V DVR to GND .............................................-0.3V to (AV OUT_REF_ _ ...
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Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference ELECTRICAL CHARACTERISTICS (continued) ( 16.5V 5.5V PARAMETER SYMBOL Stability Slew Rate SR Load Regulation V REG Output Short-Circuit Current Gamma ...
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Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference ELECTRICAL CHARACTERISTICS (continued) ( 16.5V 5.5V PARAMETER SYMBOL SET Differential Nonlinearity SET Zero-Scale Error V /AV Ratio SET DD V ...
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Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference ELECTRICAL CHARACTERISTICS (continued) ( 16.5V 5.5V PARAMETER SYMBOL Data Hold Time t HD;DAT Data Setup Time t SU;DAT SDA/SCL Receiving ...
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Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference (AV = +16.5V +3.3V, performance of the Typical Operating Circuit , OUT_REFU_H OFFSET -0.020 I = 20mA REFU_H -0.022 -0.024 -0.026 -0.028 -0.030 -0.032 -0.034 ...
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Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference (AV = +16.5V +3.3V, performance of the Typical Operating Circuit , LOWER GAMMA OUTPUT vs. ANALOG SUPPLY VOLTAGE 4.5 OUTPUTS 8 THROUGH 14 SET TO ...
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Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference PIN NAME 1 OUT_REFU_H Analog Output. Upper gamma reference high output Analog Power Supply Digital Power Supply Address Bit 0 5 ...
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... Additionally, the MAX5679 features a DVR, using a 7-bit adjustable current sink to set the VCOM voltage. The MAX5679 includes a POR function that configures all programmable outputs to predetermined levels upon initial power-up ...
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... SCL out- put. Each communication with the MAX5679 contains a START (S) condition sent by a master, the 7-bit MAX5679 slave address plus a read/write (R/W) bit, an acknowledge bit, a series of data bytes each followed by an acknowledge bit, and finally a STOP (P) condi- tion ...
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... The interface supports both standard (100kHz) and fast (400kHz) data-transfer modes. The MAX5679 does not respond to a general call address. The MAX5679 has a 7-bit long slave address (Table 1). The 8th bit following the 7-bit slave address is the R/W bit. The R/W bit is low for a write command or high for a read command ...
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... Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference mode 1 and mode 2. See Figures 6a and 6b. In mode 1, the data received by the MAX5679 consists of 9 bytes defined as follows: slave address, DVR data, and gamma 1 data though gamma 7 data. The DVR data is ...
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... When performing a read from the MAX5679, the DVR register data is the first byte to be output by the device following a START condition and the slave address. A read from the DVR register always returns an LSB value of 1 ...
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... Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference On power-up, all internal registers of the MAX5679 (DVR register and 14 gamma registers) are initiated to a preset series of values (Table 3). Use the I face to overwrite these values at any point after initial power-up. Applications Information ...
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... DVR voltage and I ), MAX ), and the MIN V = DVR 1 − The MAX5679 contains two sets of gamma DAC blocks; an upper gamma DAC block and a lower ) ⎫ gamma DAC block (see the Functional Diagram ). Each − V ⎪ MIN ⎬ DAC block comprises seven independent identical ⎭ ...
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... Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference HIGH-RANGE GAMMA AMPLIFIERS MAX5679 LOW-RANGE GAMMA AMPLIFIERS Figure 10. Typical LCD Application 16 ______________________________________________________________________________________ OUT_REFU_H GMA0 RH1 OUT1 GMA2 RH2 OUT2 GMA3 RH3 OUT3 GMA4 RH4 OUT4 GMA5 RH5 OUT5 GMA6 RH6 OUT6 ...
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Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference Upper Block DAC Transfer Function The transfer function (see Figure 9) of each of the DACs in the upper DAC block (OUT1–OUT7) is: DAC Code _ ⎧ ⎫ ...
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... AV 100Ω 4.3kΩ 1.2kΩ 4.3kΩ 100Ω 12kΩ 11kΩ 3.3kΩ 18 ______________________________________________________________________________________ 0.1µF A0 SDA SCL DD MAX5679 REFU_H REFU_L REFL_H REFL_L AV DD DVR SET GND Typical Operating Circuit OUT_REFU_H GMA0 RH1 OUT1 GMA2 RH2 OUT2 GMA3 RH3 OUT3 ...
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... Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference REFU_H REFU_L ANALOG AV DD POWER DIGITAL DV DD POWER SDA SERIAL SCL INTERFACE A0 MAX5679 DVR SET *128R = R 0 REFL_H REFL_L ______________________________________________________________________________________ POR CIRCUIT DIGITAL REGISTERS DVR DATA DATA 1 DATA 2 DATA 3 DATA 4 DATA 5 DATA 6 ...
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Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 20 ______________________________________________________________________________________ Package Information ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 21 © 2008 Maxim Integrated Products Package Information (continued registered trademark of Maxim Integrated Products, Inc. ...