XPT2046 查看數據表（PDF） - Unspecified
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XPT2046 Datasheet PDF : 30 Pages
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XPT2046 Touch Screen Controller
Electrical Characteristics: VS = +2.7V to +5.5V
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.
PARAMETER
ANALOG INPUT
Full-Scale Input Span
Absolute Input Range
Capacitance
Leakage Current
CONDITION
Positive Input−Negative Input
Positive Input
Negative Input
MIN
XPT2046
TYP
MAX
UNITS
0
VREF
V
-0.2
+VCC+0.2
V
-0.2
+0.2
V
25
pF
0.1
µA
SYSTEM PERFORMANCE
Resolution
No Missing Codes
Integral Linearity Error
Offset Error
Gain Error
Noise
Power-Supply Rejection
External VREF
Including Internal VREF
12
Bits
11
Bits
±2
LSB1
±6
LSB
±4
LSB
70
µVrms
70
dB
SAMPLING DYNAMICS
Conversion Time
Acquisition Time
Throughput Rate
Multiplexer Settling Time
Aperture Delay
Aperture Jitter
Channel-to-Channel Isolation
SWITCH DRIVERS
On-Resistance
YP、XP
YN、XN
Drive Current(2)
VIN＝2.5Vpp，fs＝50KHz
Duration 100ms
12
CLK
3
Cycles
125
CLK
500
Cycles
30
KHz
100
ns
100
ns
ps
dB
5
Ω
6
Ω
50
mA
REFERENCE OUTPUT
Internal Reference Voltage
Internal Reference Drift
Quiescent Current
Copyright©2007, SHENZHEN XPTEK TECHNOLOGY CO.,LTD
2.45
2.50
15
500
http://www.xptek.com.cn
2.55
5/30
V
ppm/℃
µA
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