SX8652ICSTRT Semtech, SX8652ICSTRT Datasheet - Page 8

• Manufacturer Part Number: SX8652ICSTRT
• Description: 4/5-wire Resistive Touch Screen Controller (SPI)
• Manufacturer: Semtech

Revision V1.5/June 2010
©2010 Semtech Corp.
ADVANCED COMMUNICATIONS & SENSING
Parameter
Startup
Power-up time
ADC
Resolution
Offset
Gain error
Differential Non Linearity
Integral Non Linearity
Resistors
X+, X-, Y+, Y- resistance
Pen detect resistance
External components
Capacitor between VDD, GND
t
A
A
A
A
A
R
R
R
R
R
C
por
res
off
ge
dnl
inl
chn
PNDT_00
PNDT_01
PNDT_10
PNDT_11
vdd
Symbol
Table 5. Electrical Specifications
Conditions
Time between rising edge VDD
and rising NIRQ
At full scale
Touch Pad Biasing Resistance
R
R
R
R
recommendations
Type 0402, tolerance +/-50%
PNDT
PNDT
PNDT
PNDT
15kV ESD Low Power 4-Wire / 5-Wire Resistive
= 0
= 1
= 2
= 3
Page 8
Touchscreen Controller with SPI Interface
Min.
12
Typ
±1.5
100
200
0.5
0.1
±1
±1
50
25
5
www.semtech.com
DATASHEET
Max
SX8652
1
kOhm
kOhm
kOhm
kOhm
Unit
Ohm
LSB
LSB
LSB
LSB
bits
ms
uF