sx8675iwltrt Semtech Corporation, sx8675iwltrt Datasheet - Page 10

• Manufacturer Part Number: sx8675iwltrt
• Description: Haptics Enabled Multitouch 4/5-wire Resistive Touchscreen Controller With Proximity Sensing
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 25
Symbol
Haptics Interface
Touchscreen Interface
Proximity Sensing Interface
ISHORT
TWRNG
Digital I/Os (ADDR, SCL, SDA, NRST, NIRQ, AUX1, AUX2, AUX3, MIN)
VDROP
TALRM
DCMIN
FMINC
FMINP
VERR
VDRV
VOFF
ARES
AOFF
ADNL
VPULL
MVDD
RBIAS
ILEAK
IDRV
VOH
AINL
AGE
MIDD
VOL
CDC
t
VIH
VIL
PROX
CI
th
Description
Haptics supply voltage
Haptics supply current
High level input voltage
Low level input voltage
Input leakage current
Input capacitance
High level output voltage
Low level output voltage
External pull-up voltage
Maximum drive current
(MOUTP/MOUTN)
Output squelch differential error
(from 0V ideal)
Output differential error
(from 1.135V ideal)
Drive voltage (MOUTP/MOUTN)
Drop voltage (MOUTP/MOUTN)
Short-circuit detection current
Motor input (MIN) frequency in
I2C mode
Motor input (MIN) frequency in
PWM mode
Motor input (MIN) duty cycle in
PWM mode
Warning temperature
Alarm temperature
ADC resolution
ADC offset
ADC gain error
ADC differential non-linearity
ADC integral non-linearity
Biasing resistance
External capacitance to be
compensated
Scan period (reaction time)
July 2011
MIN= 44.8kHz/50%, GAIN = Max,
MIN= 44.8kHz/50%, GAIN = Max,
TOUCHRATE=80cps, PROX ON,
MOUTP/N floating, Squelch=011
range, GAIN = Max, BW = 100,
FREQ=150kHz, BOOST=OFF,
(PENDET/TRG mode, pen up,
BW = 100, MOUTP/N floating,
BW = 100, MOUTP/N floating,
SCL, SDA, NRST, NIRQ
AmplitudeCode within squelch
AmplitudeCode = +127 (Max)
(MAN mode, no command,
LRA or ERM, PWM or I2C,
Junction temperature
From MVDD/MGND,
SCANPERIOD=200ms,
GAIN = Min, BW = 100,
Resistive Touchscreen Controller with Proximity Sensing
Measured @MIDD
40-60% duty cycle
HAPTRANGE = 0
HAPTRANGE = 1
SCL, SDA, NRST
SENSITIVITY=Max,
(LRA-PWM mode,
MOUTP/N floating
LRA or ERM, I2C,
LRA-PWM mode,
MVDD = 3.6V
Programmable
Conditions
At full scale
Squelch=011)
Squelch=011)
IOH = 4mA
HIGHIM=ON,
SQUELCH
IOL = 4mA
Other pins
10
HAPT OFF)
@250mA
PROX
HAPT
OFF
-
-
-
-
-
-
SX8674/SX8675/SX8676
Haptics Enabled Multitouch 4/5-Wire
0.8*VDD
0.8*VDD
0.8*VDD
125
VDD
12.8
25.6
Min
0
-0.3
12
2
-
-
-
-
-1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
(1)
-
-
-
(2)
± 1.5
Typ.
0.01
115
250
300
120
155
± 1
0.5
± 1
200
8
6
0
0
-
-
-
-
-
-
-
-
5
5
-
-
-
-
-
-
-
-
www.semtech.com
VDD+0.2
VDDM
125
Max
25.6
51.2
145
150
3.6
0.4
0
300
20
10
50
98
3.6
0.8
3.6
1
-
-
-
-
-
-
-
-
-
-
-
(1)
1
-
-
(2)
Unit
mA
mV
mV
mV
mA
MHz
LSB
kHz
kHz
° C
%
µA
µA
V
bits
pF
ms
V
µA
pF
V
V
V
V
V