WM9715LGEFLV WOLFSON [Wolfson Microelectronics plc], WM9715LGEFLV Datasheet - Page 9
WM9715LGEFLV
Manufacturer Part Number
WM9715LGEFLV
Description
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM9715LGEFLV.pdf
(77 pages)
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Production Data
w
TOUCHPANEL AND AUXILIARY ADC
Note:
1. Current only flows into pin 31 during a measurement. At all other times, BMON/AUX3 is effectively an open circuit.
COMPARATORS
Test Conditions
DBVDD=3.3V, DCVDD = 3.3V, AVDD = TPVDD = 3.3V, T
Input Pins X+, X-, Y+, Y-, WIPER/AUX4, COMP1/AUX1, COMP2/AUX2 and BMON/AUX3
Input Voltage
Input leakage current
ADC Resolution
Differential Non-Linearity Error
Integral Non-Linearity Error
Offset Error
Gain Error
Power Supply Rejection
Switch matrix resistance
Programmable Pull-up resistor
Pen down detector threshold
Pressure measurement current
BMON/AUX3 (pin 31 only)
Input Range
Scaling
Input Resistance (Note 1)
Test Conditions
AVDD = 3.3V, T
COMP1/AUX1 and COMP2/AUX2 (pins 29, 30)
Input Voltage
Input leakage current
Comparator Input Offset
(COMP1, COMP2 only)
COMP2 delay (COMP2 only)
PARAMETER
PARAMETER
A
= +25
o
C, unless otherwise stated.
DNL
INL
R
I
PSRR
SYMBOL
SYMBOL
P
PU
AUX pin not selected as
pin not selected as AUX
during measurement
TEST CONDITIONS
TEST CONDITIONS
24.576MHz crystal
average over time
AUX ADC input
RPU = 000001
AVDD = 3.3V
AVDD = 1.8V
ADC input
PIL = 1
PIL = 0
A
= +25
o
C, MCLK = 24.576 MHz, unless otherwise stated.
AGND
AGND
AGND
AGND
-0.99
-3%
MIN
MIN
-50
63
0
duty cycle
VDD/2
±0.15
TYP
<10
400
200
30 /
TYP
<10
1/3
12
±4
±8
50
10
68
30
PD Rev 4.0 December 2007
AVDD
AVDD
+1.75
MAX
+3%
MAX
10.9
+50
3.3
±3
73
5
WM9715L
UNIT
UNIT
LSB
LSB
LSB
LSB
bits
mV
kΩ
kΩ
nA
dB
µA
nA
Ω
V
V
V
V
V
s
9
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