CXA2108 Sony Corporation, CXA2108 Datasheet
CXA2108
Related parts for CXA2108
CXA2108 Summary of contents
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... Constant-Current Driver for Full Color LED Display For the availability of this product, please contact the sales office. Description The CXA2108Q is a 1,024-gradation LED driver which is ideal for full color LED displays. This IC has 24 outputs and a maximum output current of 60mA. Time division allows driving of either two or six LEDs per output by connecting an external FET or other switch ...
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... CXA2108Q REXT XTAO XWR XRD XR ...
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... IOUT5 63 IOUT4 62 IOUT3 61 IOUT2 60 IGND 59 IOUT1 IOUT0 AGND 55 REXT XTAO 52 XRST 51 XR/W 50 XRD 49 XWR 48 47 XCS DLDI DGND A7 41 CXA2108Q ...
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... These pins are used to input and output data to and from the internal DGND RAM (luminance data, brightness data and drive current data RAM). See DV Table 1. Read/Write Switching CC Condition Correspondence Table for the data I/O switching conditions DGND – 4 – CXA2108Q Description ...
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... This pin is used to input the clock for externally reading the luminance, brightness and drive current data not synchronized with CLK. Trigger signal input for luminance data RAM (A)/(B) switching and PWM output start. (See the Timing Charts.) – 5 – CXA2108Q Description ...
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... This is used as the LED switching signal. (See the Timing Charts and Application Circuits for details.) Thermal Alarm Out signal output. This pin normally outputs high level, but it outputs low level when the internal temperature rises to an abnormally high level. – 6 – CXA2108Q Description 1 ...
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... Enable Disable Disable Disable Disable Enable Disable Disable Disable Disable Enable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable – 7 – CXA2108Q Description [I/O] Read Disable Output Enable Output Disable Input Disable Input Disable Hi-Z Hi-Z Disable Disable Hi-Z Disable Hi-Z ...
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... In addition, these values assume the case where all channels are set to the same drive current. Io (FFh) [mA] Io (00h) [mA] 21.7 10.8 43.3 21.7 1 65.0 32.5 2 86.7 43.3 17.3 8.7 34.7 17.3 52.0 26.0 1 69.3 34.7 14.4 7.2 28.9 14.4 43.3 21.7 57.8 28.9 12.4 6.2 24.8 12.4 37.1 18.6 49.5 24.8 10.8 5.4 21.7 10.8 32.5 16.3 43.3 21 800 Iref (16/3 + 32. 1)) – 8 – Istb [mA] Pstb [W] Po (max) [W] 0.136 27.3 0.241 48.3 0.346 69.2 90.2 0.451 22.4 0.112 39.2 0.196 55.9 0.280 72.7 0.364 19.1 0.096 33.1 0.166 47.1 0.235 0.305 61.1 0.084 16.8 0.144 28.8 0.204 40.8 0.264 52.8 0.075 15.1 25.6 0.128 36.0 0.180 46.5 0.233 CXA2108Q 1.36 1.26 1.15 1.05 1.39 1.30 1.22 1.14 1.40 1.33 1.26 1.19 1.42 1.36 1.30 1.24 1.42 1.37 1.32 1.27 ...
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... Rext = 2kΩ Note) Excluding the driver block Io (FFh) = 60mA (D0 [LSB [MSB] = FFh) OUT – 9 – +5V, AGND, DGND, IGND = 0V Min. Typ. Max. 15 1253 1300 1356 ±0 CXA2108Q Unit MHz bit bit bit LSB mA + 0.3 V ...
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... I = 4mA OZL CC OL Output load 50pF or less – 10 – +5V, AGND, DGND, IGND = 0V Min. Typ. Max. –5 5 –5 5 0.7DV –0.3 0.3DV 4 0.4 3.7 0.4 133 133 100 CXA2108Q Unit µA µ ...
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... Note) The address is not latched internally not change the address while XWR is low. (1) Read mode (XR XRD Note) The address is not latched internally not change the address while XRD is low SWR CRD T T SRD HRD T PDD – 11 – T CWR T HWR CXA2108Q ...
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... Electrical Characteristics Measurement Circuit DC Characteristics Measurement Circuit Logic Tester 5V 0V 15MHz 5V XRST MODE XR/W IOUT0 to 23 XRD XWR DLDI CXA2108Q XCS CLK 2k – 12 – CXA2108Q A 1.5V ...
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... Description of Operation 1. Description The CXA2108Q is an LED driver for full color LED displays. The RGB luminance which becomes the video data is controlled by pulse width modulation (PWM), and the luminance variance of each LED is corrected by the drive current. The basic PWM clock width can be set in 16 steps from the brightness data, making it possible to adjust the brightness of the entire screen ...
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... That is to say, the necessary current differs for each LED. This drive current IOUT corresponds to the amplitude of the IOUT output PWM waveform as shown in Fig. 1. The CXA2108Q can set this current independently for each LED using Coarse Adj. (2 bits: D8, D9) and Fine Adj. (8 bits D7). The maximum drive current (Io (FFh): IOUT @ FFh) is set by Coarse Adj ...
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... Operating modes (Upper/Lower, Upper/Lower/RGB) The CXA2108Q has the following two operation modes which are set by the MODE pin. 4-1. Upper/Lower mode (MODE = low) In this mode, two LEDs are driven by time division for each IOUT output. First, PWM waveform output starts triggered by the DLDI input signal. In this mode, two kinds of luminance data are output by time division for each output ...
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... UB • 0000000000 MODE Upper/Lower/RGB Fig. 3. Relationship Between Memory Address and Data (Luminance Data Dv, Brightness Data Db) Can't use Brightness Data Don't use Upper/Lower – 16 – CXA2108Q IOUT23 IOUT22 IOUT21 • • IOUT4 IOUT3 IOUT2 IOUT1 IOUT0 a ...
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... UG • 1000110000 1000101111 • UR • 1000011000 1000010111 • UB • 1000000000 Upper/Lower/RGB MODE Fig. 4. Relationship Between Memory Address and Data (Drive Current Data Dd) Can't use Upper/Lower – 17 – CXA2108Q IOUT23 IOUT22 IOUT21 • • IOUT4 IOUT3 IOUT2 IOUT1 IOUT0 a ...
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... IOUT6 IOUT7 IOUT8 IOUT9 IOUT10 IOUT11 IOUT12 IOUT13 IOUT14 IOUT15 IOUT16 IOUT17 – 26 – CXA2108Q ...
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... IOUT6 IOUT7 IOUT8 IOUT9 IOUT10 IOUT11 IOUT12 IOUT13 IOUT14 IOUT15 IOUT16 IOUT17 – 27 – CXA2108Q ...
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... DETAIL A SONY CODE EIAJ CODE JEDEC CODE 80PIN QFP (PLASTIC) 23.9 ± 0.4 + 0.4 20.0 – 0 0.15 0.35 – 0.1 M 0.2 PACKAGE STRUCTURE PACKAGE MATERIAL QFP-80P-L01 LEAD TREATMENT QFP080-P-1420 LEAD MATERIAL PACKAGE MASS – 28 – CXA2108Q + 0.1 0.15 – 0.05 0. 0.2 0.1 – 0.05 + 0.35 2.75 – 0.15 EPOXY RESIN SOLDER PLATING 42/COPPER ALLOY 1.6g ...