SX8652IWLTRT Semtech, SX8652IWLTRT Datasheet - Page 8

• Manufacturer Part Number: SX8652IWLTRT
• Description: IC TOUCH SCREEN CTRLR 14DFN
• Manufacturer: Semtech
• Type: Resistiver

Specifications of SX8652IWLTRT

• Touch Panel Interface: 4-Wire, 5-Wire
• Number Of Inputs/keys: 2 Key
• Resolution (bits): 12 b
• Data Interface: Serial, SPI™
• Data Rate/sampling Rate (sps, Bps): 74k
• Voltage Reference: Internal
• Voltage - Supply: 1.65 V ~ 3.7 V
• Current - Supply: 10mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-DFN
• Voltage Supply Source: Single Supply
• Sampling Rate (per Second): 74k
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SX8652IWLTR

Revision V1.7/October 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