WM9713 查看數據表（PDF） - Wolfson Microelectronics plc
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WM9713 Datasheet PDF : 108 Pages
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WM9713L
TOUCHPANEL AND AUXILIARY ADC
Test Conditions
DBVDD = 3.3V, DCVDD = 3.3V, AVDD = 3.3V, TA = +25oC, unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
Input Pins X+, X-, Y+, Y-, WIPER/AUX4, COMP1/AUX1, COMP2/AUX2
Input Voltage
Input leakage current
AUX pin not selected as
AUX ADC input
ADC Resolution
Differential Non-Linearity Error DNL
Integral Non-Linearity Error
INL
Offset Error
Gain Error
Power Supply Rejection
PSRR
Channel-to-channel isolation
Throughput Rate
DEL = 1111
(zero settling time)
Settling Time (programmable)
MCLK = 24.576MHz
Switch matrix resistance
Programmable Pull-up resistor RPU
RPU = 000001
Pen down detector threshold
Pressure measurement current IP
PIL = 1
PIL = 0
MIN
AGND
0
1
TYP
<10
12
±0.25
50
80
20
VDD/2
400
200
Pre-Production
MAX
AVDD
±1
±2
±4
±6
48
6
63
UNIT
V
nA
bits
LSB
LSB
LSB
LSB
dB
dB
kHz
ms
Ω
kΩ
V
µA
COMPARATORS
Test Conditions
DBVDD = 3.3V, DCVDD = 3.3V, AVDD = 3.3V, TA = +25oC, unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
COMP1/AUX1 and COMP2/AUX2 (pins 29, 30 – when not used as mic inputs)
Input Voltage
AGND
Input leakage current
pin not selected as AUX
<10
ADC input
Comparator Input Offset
-50
(COMP1, COMP2 only)
COMP2 delay (COMP2 only)
MCLK = 24.576MHz
0
MAX
AVDD
+50
10.9
UNIT
V
nA
mV
s
REFERENCE VOLTAGES
Test Conditions
DBVDD=3.3V, DCVDD = 3.3V, AVDD = 3.3V, TA = +25oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.
PARAMETER
Audio ADCs, DACs, Mixers
Reference Input/Output
Buffered Reference Output
Microphone Bias
Bias Voltage
Bias Current Source
Output Noise Voltage
SYMBOL TEST CONDITIONS
CAP2 pin
VREF pin
VMICBIAS
IMICBIAS
Vn
1K to 20kHz
MIN
1.63
1.64
2.92
TYP
1.65
1.65
2.97
15
MAX
1.66
1.67
3.00
3
UNIT
V
V
V
mA
nV/√Hz
w
PP Rev 3.0 June 2006
10
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