BL2046QN Datasheet, PDF (3/21 Pages) SHANGHAI BELLING CO., LTD. – Temperature measurement

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
V_BAT Battery Monitor Input
12 AUX Auxiliary Input to ADC
13
V_REF 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 T_A = –40°C to +85°C, +V_CC = +2.7V, V_REF = 2.5V internal voltage, f_SAMPLE = 125kHz, f_CLK =
16 • f_SAMPLE = 2MHz, 12-bit mode, digital inputs = GND or IOVDD, and +V_CC must be •IOVDD,
unless otherwise noted
PARAMETER
CONDITIONS
BL2046
UNITS
MIN
TYP
MAX
REFERENCE OUTPUT
Internal Reference Voltage
2.46
2.54
250
V
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