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BL2046QN Datasheet(PDF) 3 Page - SHANGHAI BELLING CO., LTD. |
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BL2046QN Datasheet(HTML) 3 Page - SHANGHAI BELLING CO., LTD. |
3 / 21 page BL2046 4 DCLK External Clock Input. This clock runs the SAR conversion process and synchronizes serial data I/O. 5 +Vcc Power Supply 6 X+ X+ Position Input 7 Y+ Y+ Position Input 8 X- X– Position Input 9 Y- Y– Position Input 10 GND Ground 11 VBAT Battery Monitor Input 12 AUX Auxiliary Input to ADC 13 VREF Voltage Reference Input/Output 14 IOVDD Digital I/O Power Supply 15 Pen Interrupt 16 DOUT Serial Data Output. Data is shifted on the falling edge of DCLK. This output is high impedance when is high. Typical Application Circuit Figure 1 Typical Application Circuit of the BL2046 Electrical Characteristics At TA = –40°C to +85°C, +VCC = +2.7V, VREF = 2.5V internal voltage, fSAMPLE = 125kHz, fCLK = 16 • fSAMPLE = 2MHz, 12-bit mode, digital inputs = GND or IOVDD, and +VCC must be •IOVDD, unless otherwise noted BL2046 PARAMETER CONDITIONS MIN TYP MAX UNITS REFERENCE OUTPUT Internal Reference Voltage 2.46 250 2.54 V http://www.belling.com.cn - 3 - Total 3 Pages |
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